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QoS Aware Power Allocation and User Selection in Massive MIMO Underlay Cognitive Radio NetworksMar 15 2019We address the problem of power allocation and secondary user (SU) selection in the downlink from a secondary base station (SBS) equipped with a large number of antennas in an underlay cognitive radio network. A new optimization framework is proposed ... More
Power Control and Frequency Band Selection Policies for Underlay MIMO Cognitive RadioMar 15 2019We study power control and frequency band selection policies for multi-band underlay MIMO cognitive radio with the objective of maximizing the rate of a secondary user (SU) link while limiting the interference leakage towards primary users (PUs) below ... More
Successive Refinement of Images with Deep Joint Source-Channel CodingMar 15 2019We introduce deep learning based communication methods for successive refinement of images over wireless channels. We present three different strategies for progressive image transmission with deep JSCC, with different complexity-performance trade-offs, ... More
Low Field-size, Rate-Optimal Streaming Codes for Channels With Burst and Random ErasuresMar 14 2019In this paper, we design erasure-correcting codes for channels with burst and random erasures, when a strict decoding delay constraint is in place. We consider the sliding-window-based packet erasure model proposed by Badr et al., where any time-window ... More
Wiretap Secret Key Capacity of Tree-PINMar 14 2019Secret key agreement (SKA) is an essential primitive in cryptography and information security. In a multiterminal key agreement problem, there are a set of terminals each having access to a component of vector random variable. The goal of the terminals ... More
Routing-Based Delivery in Combination-Type Networks with Random TopologyMar 14 2019The coded caching scheme proposed by Maddah-Ali and Niesen (MAN) transmits coded multicast messages to users equipped with caches and it is known to be optimal within a constant factor. This work extends this caching scheme to two-hop relay networks with ... More
Robust Matrix Completion via Maximum Correntropy Criterion and Half Quadratic OptimizationMar 14 2019Robust matrix completion aims to recover a low-rank matrix from a subset of noisy entries perturbed by complex noises, where traditional methods for matrix completion may perform poorly due to utilizing $l_2$ error norm in optimization. In this paper, ... More
Bayesian/Graphoid intersection property for factorisation modelsMar 14 2019We remark that the Graphoid intersection property, also called intersection property in Bayesian networks, is a particular case of an intersection property, in the sense of intersection of coverings, for factorisation spaces, also called factorisation ... More
Rate Statistics in Cellular Downlink: PHY Rateless vs Adaptive Modulation and CodingMar 14 2019In this letter, we focus on rateless coded adaptive transmission in a cellular downlink. Based on a stochastic geometry model for the locations of BSs, we evaluate the meta-distribution of rate, i.e., the distribution of rate conditioned on the point ... More
Metrics which turn tilings into binary perfect codesMar 14 2019In this work, we consider tilings of the Hamming cube and look for metrics determined by a weight and which is compatible with the support of vectors (TS-metrics) which turn the known tilings into perfect codes. We determine which tilings with small tiles ... More
Channel Estimation and Hybrid Precoding for Distributed Phased Arrays Based MIMO Wireless CommunicationsMar 14 2019Distributed phased arrays based multiple-input multiple-output (DPA-MIMO) is a newly debuted architecture that enables both spatial multiplexing and beamforming while facilitating highly reconfigurable hardware implementation in millimeter-wave (mmWave) ... More
Large-Scale Beamforming for Massive MIMO via Randomized SketchingMar 14 2019Massive MIMO system yields significant improvements in spectral and energy efficiency for future wireless communication systems. The regularized zero-forcing (RZF) beamforming is able to provide good performance with the capability of achieving numerical ... More
Non-Coherent Joint Transmission in Poisson Cellular Networks Under Pilot ContaminationMar 14 2019This paper investigates the performance of downlink cellular networks with non-coherent joint (mutlipoint) transmissions and practical channel estimation. Under a stochastic geometry framework, the spatial average signal-to-noise-ratio (SNR) is characterized, ... More
Distributed Detection with Empirically Observed StatisticsMar 14 2019We consider a binary distributed detection problem in which the distributions of the sensor observations are unknown and only empirically observed statistics are available to the fusion center. The source (test) sequences are transmitted through different ... More
On power chi expansions of $f$-divergencesMar 14 2019We consider both finite and infinite power chi expansions of $f$-divergences derived from Taylor's expansions of smooth generators, and elaborate on cases where these expansions yield closed-form formula, bounded approximations, or analytic divergence ... More
Queue-Aware Variable-Length Coding for Ultra Reliable Low Latency Communications with Random ArrivalMar 14 2019With the phenomenal growth of the Internet of Things (IoT), Ultra Reliable Low Latency Communications (URLLC) has potentially been the enabler to guarantee the stringent requirements on latency and reliability. However, how to achieve low latency and ... More
Energy-Efficient Power Allocation in Uplink mmWave Massive MIMO with NOMAMar 13 2019In this paper, we study the energy efficiency (EE) maximization problem for an uplink millimeter wave massive multiple-input multiple-output system with non-orthogonal multiple access (NOMA). Multiple two-user clusters are formed according to their channel ... More
Energy-Efficient Joint User-RB Association and Power Allocation for Uplink Hybrid NOMA-OMAMar 13 2019In this paper, energy efficient resource allocation is considered for an uplink hybrid system, where non-orthogonal multiple access (NOMA) is integrated into orthogonal multiple access (OMA). To ensure the quality of service for the users, a minimum rate ... More
Securing Downlink Massive MIMO-NOMA Networks with Artificial NoiseMar 13 2019In this paper, we focus on securing the confidential information of massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks by exploiting artificial noise (AN). An uplink training scheme is first proposed with minimum ... More
Reactive Sensing and Multiplicative Frame Super-resolutionMar 13 2019The problem is to evaluate the behavior of an object when primary sources of information about the object become unavailable, so that any information must be obtained from the intelligent use of available secondary sources. This evaluative process is ... More
Squares of Matrix-product CodesMar 13 2019The component-wise or Schur product $C*C'$ of two linear error correcting codes $C$ and $C'$ over certain finite field is the linear code spanned by all component-wise products of a codeword in $C$ with a codeword in $C'$. When $C=C'$, we call the product ... More
Secure and Efficient Compressed Sensing Based Encryption With Sparse MatricesMar 13 2019Mar 14 2019In this paper, we study the security of a compressed sensing (CS) based cryptosystem called a sparse one-time sensing (S-OTS) cryptosystem, which encrypts each plaintext with a sparse measurement matrix. To generate the secret matrix and renew it at each ... More
Age-of-Information vs. Value-of-Information Scheduling for Cellular Networked Control SystemsMar 13 2019Age-of-Information (AoI) is a recently introduced metric for network operation with sensor applications which quantifies the freshness of data. In the context of networked control systems (NCSs), we compare the worth of the AoI metric with the value-of-information ... More
New Characterizations for the Multi-output Correlation-Immune Boolean FunctionsMar 13 2019In stream ciphers, the correlation-immune functions serve as an important metric for measuring a cryptosystem resistance against correlation attacks. In block ciphers, there is a equivalence between multipermutations and correlation-immune functions. ... More
The Fourier Spectral Characterization for the Correlation-Immune Functions over FpMar 13 2019The correlation-immune functions serve as an important metric for measuring resistance of a cryptosystem against correlation attacks. Existing literature emphasize on matrices, orthogonal arrays and Walsh-Hadamard spectra to characterize the correlation-immune ... More
Analytic Semi-device-independent Entanglement Quantification for Bipartite Quantum StatesMar 13 2019Mar 15 2019We define a property called nondegeneracy for Bell inequalities, which describes the situation that in a Bell setting, if a Bell inequality and involved local measurements are chosen and fixed, any quantum state with a given dimension and its orthogonal ... More
An Analytic Semi-device-independent Entanglement Quantification for Bipartite Quantum StatesMar 13 2019We define a property called nondegeneracy for Bell inequalities, which describes the situation that in a Bell setting, if a Bell inequality and involved local measurements are chosen and fixed, any quantum state with a given dimension and its orthogonal ... More
Accessing From The Sky: A Tutorial on UAV Communications for 5G and BeyondMar 13 2019Mar 14 2019Unmanned aerial vehicles (UAVs) have found numerous applications and are expected to bring fertile business opportunities in the next decade. Among various enabling technologies for UAVs, wireless communication is essential and has drawn significantly ... More
MDS codes over finite fieldsMar 12 2019The mds (maximum distance separable) conjecture claims that a nontrivial linear mds $[n,k]$ code over the finite field $GF(q)$ satisfies $n \leq (q + 1)$, except when $q$ is even and $k = 3$ or $k = q- 1$ in which case it satisfies $n \leq (q + 2)$. For ... More
Multi-target detection with application to cryo-electron microscopyMar 12 2019We consider the multi-target detection problem of recovering a set of signals that appear multiple times at unknown locations in a noisy measurement. In the low noise regime, one can estimate the signals by first detecting occurrences, then clustering ... More
Age of Information in a Multiple Access Channel with Heterogeneous Traffic and an Energy Harvesting NodeMar 12 2019Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to a common destination. ... More
The All-or-Nothing Phenomenon in Sparse Linear RegressionMar 12 2019We study the problem of recovering a hidden binary $k$-sparse $p$-dimensional vector $\beta$ from $n$ noisy linear observations $Y=X\beta+W$ where $X_{ij}$ are i.i.d. $\mathcal{N}(0,1)$ and $W_i$ are i.i.d. $\mathcal{N}(0,\sigma^2)$. A closely related ... More
Artificial Intelligence-aided Receiver for A CP-Free OFDM System: Design, Simulation, and Experimental TestMar 12 2019Orthogonal frequency division multiplexing (OFDM), usually with sufficient cyclic prefix (CP), has been widely applied in various communication systems. The CP in OFDM consumes additional resource and reduces spectrum and energy efficiency. However, channel ... More
Bit-Interleaved Coded Multiple Beamforming in Millimeter-Wave Massive MIMO SystemsMar 12 2019Mar 14 2019In this paper we carry out the asymptotic diversity analysis for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems by using bit interleaved coded multiple beamforming (BICMB). First, a single-user mmWave system which employs ... More
Bit-Interleaved Coded Multiple Beamforming in Millimeter-Wave Massive MIMO SystemsMar 12 2019In this paper we carry out the asymptotic diversity analysis for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems by using bit interleaved coded multiple beamforming (BICMB). First, a single-user mmWave system which employs ... More
Two-Timescale Hybrid Compression and Forward for Massive MIMO Aided C-RANMar 12 2019We consider the uplink of a cloud radio access network (C-RAN), where massive MIMO remote radio heads (RRHs) serve as relays between users and a centralized baseband unit (BBU). Although employing massive MIMO at RRHs can improve the spectral efficiency, ... More
Quantifying the magic of quantum channelsMar 11 2019To achieve universal quantum computation via general fault-tolerant schemes, stabilizer operations must be supplemented with other non-stabilizer quantum resources. Motivated by this necessity, we develop a resource theory for magic quantum channels to ... More
Publicness, Privacy and Confidentiality in the Single-Serving Quantum Broadcast ChannelMar 11 2019The 2-receiver broadcast channel is studied: a network with three parties where the transmitter and one of the receivers are the primarily involved parties and the other receiver considered as third party. The messages that are determined to be communicated ... More
Equivalence classes of Niho bent functionsMar 11 2019Equivalence classes of Niho bent functions are described for all known types of hyperovals.
Semi-Blind Channel-and-Signal Estimation for Uplink Massive MIMO With Channel SparsityMar 11 2019This paper considers the transceiver design for uplink massive multiple input multiple output (MIMO) systems with channel sparsity in the angular domain. Recent progress has shown that sparsity learning-based blind signal detection is able to retrieve ... More
Interference Mitigation for Ultrareliable Low-Latency Wireless CommunicationMar 11 2019This paper proposes interference mitigation techniques for provisioning ultrareliable low-latency wireless communication in an industrial automation setting, where multiple transmissions from controllers to actuators interfere with each other. Channel ... More
Clustering-Correcting CodesMar 11 2019A new family of codes, called clustering-correcting codes, is presented in this paper. This family of codes is motivated by the special structure of data that is stored in DNA-based storage systems. The data stored in these systems has the form of unordered ... More
A simple bound on the BER of the MAP decoder for massive MIMO systemsMar 10 2019The deployment of massive MIMO systems has revived much of the interest in the study of the large-system performance of multiuser detection systems. In this paper, we prove a non-trivial upper bound on the bit-error rate (BER) of the MAP detector for ... More
Towards Ultra-Reliable Low-Latency Communications: Typical Scenarios, Possible Solutions, and Open IssuesMar 10 2019Ultra-reliable low-latency communications (URLLC) has been considered as one of the three new application scenarios in the \emph{5th Generation} (5G) \emph {New Radio} (NR), where the physical layer design aspects have been specified. With the 5G NR, ... More
A Low-Complexity Cache-Aided Multi-antenna Content Delivery SchemeMar 09 2019We study downlink beamforming in a single-cell network with a multi-antenna base station (BS) serving cache-enabled users. Proactive caching and coded delivery provides global caching gains by dividing the files into subfiles and creating multicasting ... More
Hybrid Transceiver Optimization for Multi-Hop CommunicationsMar 09 2019Multi-hop communication with the aid of large-scale antenna arrays will play a vital role in future emergence communication systems. In this paper, we investigate amplify-and-forward based and multiple-input-multiple-output assisted multi-hop communication, ... More
Construction of Isodual Quasi-cyclic Codes over Finite FieldsMar 09 2019This paper considers the construction of isodual quasi-cyclic codes. First we prove that two quasi-cyclic codes are permutation equivalent if and only if their constituent codes are equivalent. This gives conditions on the existence of isodual quasi-cyclic ... More
Strengthened Information-theoretic Bounds on the Generalization ErrorMar 09 2019The following problem is considered: given a joint distribution $P_{XY}$ and an event $E$, bound $P_{XY}(E)$ in terms of $P_XP_Y(E)$ (where $P_XP_Y$ is the product of the marginals of $P_{XY}$) and a measure of dependence of $X$ and $Y$. Such bounds have ... More
Probability Mass Functions for which Sources have the Maximum Minimum Expected LengthMar 09 2019Let $\mathcal{P}_n$ be the set of all probability mass functions (PMFs) $(p_1,p_2,\ldots,p_n)$ that satisfy $p_i>0$ for $1\leq i \leq n$. Define the minimum expected length function $\mathcal{L}_D :\mathcal{P}_n \rightarrow \mathbb{R}$ such that $\mathcal{L}_D ... More
Molecular Information Delivery in Porous MediaMar 09 2019Information delivery via molecular signals is abundant in nature and potentially useful for industry sensing. Many propagation channels (e.g., tissue membranes and catalyst beds) contain porous medium materials and the impact this has on communication ... More
Optimizing Information Freshness in Broadcast Network with Unreliable Links and Random Arrivals: An Approximate Index PolicyMar 09 2019With the rapid growth of real-time Internet of Things (IoT) applications, the need for fresh information has surged. Age of Information (AoI) is a tailor-made metric to characterize the information freshness perceived by the devices. In this paper, we ... More
The parameters of a family of linear codesMar 09 2019A large family of linear codes with flexible parameters from almost bent functions and perfect nonlinear functions are constructed and their parameters are determined. Some constructed linear codes and their related codes are optimal in the sense that ... More
Neural-Network Optimized 1-bit Precoding for Massive MU-MIMOMar 09 2019Base station (BS) architectures for massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems are equipped with hundreds of antennas to serve tens of users on the same time-frequency channel. The immense number of BS antennas incurs ... More
Deep Learning-Based Constellation Optimization for Physical Network Coding in Two-Way Relay NetworksMar 09 2019This paper studies a new application of deep learning (DL) for optimizing constellations in two-way relaying with physical-layer network coding (PNC), where deep neural network (DNN)-based modulation and demodulation are employed at each terminal and ... More
Learning to Modulate for Non-coherent MIMOMar 09 2019The deep learning trend has recently impacted a variety of fields, including communication systems, where various approaches have explored the application of neural networks in place of traditional designs. Neural networks flexibly allow for data/simulation-driven ... More
Polar Coding with Chemical Reaction NetworksMar 09 2019In this paper, we propose a new polar coding scheme with molecular programming, which is capable of highly parallel implementation at a nano-scale without a need of electrical power sources. We designed chemical reaction networks (CRN) to employ either ... More
The GC-content of a family of cyclic codes with applications to DNA-codesMar 08 2019Given a prime power $q$ and a positive integer $r>1$ we say that a cyclic code of length $n$, $C\subseteq F_{q^r}^n$, is Galois supplemented if for any non-trivial element $\sigma$ in the Galois group of the extension $ F_{q^r}/ F_q$, $C+C^\sigma= F_{q^r}^n$, ... More
Secrecy Outage of SWIPT in the Presence of Cooperating EavesdroppersMar 08 2019This work investigates the secrecy performance for a simultaneous wireless information and power transfer system that operates in the presence of cooperating eavesdroppers. The multi-antenna access point's transmission is used for information-decoding ... More
Localizing an Unknown Number of mmW Transmitters Under Path Loss Model UncertaintiesMar 08 2019This work estimates the position and the transmit power of multiple co-channel wireless transmitters under model uncertainties. The model uncertainties include the number of the targets and the parameters of the path-loss model which enable the system ... More
A Quantum Observation Scheme Can Universally Identify Causalities from CorrelationsMar 08 2019It has long been recognized as a difficult problem to determine whether the observed statistical correlation between two classical variables arise from causality or from common causes. Recent research has shown that in quantum theoretical framework, the ... More
Multiple-Relay Slotted ALOHA: Performance Analysis and BoundsMar 08 2019Wireless random access protocols are attracting a revived research interest as a simple yet effective solution for machine-type communications. In the quest to improve reliability and spectral efficiency of such schemes, the use of multiple receivers ... More
Secrecy Outage for Wireless Sensor NetworksMar 08 2019This paper addresses Physical Layer Security (PLS) for a wireless sensor network in which multiple sensor nodes communicate with a single sink in the presence of an eavesdropper. Under the assumption of sink using outdated channel state information (CSI) ... More
One-Bit Sigma-Delta MIMO PrecodingMar 08 2019Coarsely quantized MIMO signalling methods have gained popularity in the recent developments of massive MIMO as they open up opportunities for massive MIMO implementation using cheap and power-efficient radio-frequency front-ends. This paper presents ... More
Analysis on the Empirical Spectral Distribution of Large Sample Covariance Matrix and Applications for Large Antenna Array ProcessingMar 08 2019This paper addresses the asymptotic behavior of a particular type of information-plus-noise-type matrices, where the column and row number of the matrices are large and of the same order, while signals are diverged and time delays of the channel are fixed. ... More
Secret key distillation across a quantum wiretap channel under restricted eavesdroppingMar 07 2019The theory of quantum cryptography aims to guarantee unconditional information-theoretic security against an omnipotent eavesdropper. In many practical scenarios, however, the assumption of an all-powerful adversary is excessive and can be relaxed considerably. ... More
Decoder-in-the-Loop: Genetic Optimization-based LDPC Code DesignMar 07 2019Low-Density Parity-Check (LDPC) code design tools typically rely on the asymptotic code behavior and, thus, are affected by an unavoidable performance degradation in the short length regime.We propose an LDPC code design scheme based on an evolutionary ... More
Non-Stationarities in Extra-Large Scale Massive MIMOMar 07 2019Massive MIMO, a key technology for increasing area spectral efficiency in cellular systems, was developed assuming moderately sized apertures. In this paper, we argue that massive MIMO systems behave differently in large-scale regimes due to spatial non-stationarity. ... More
On the security of a Loidreau's rank metric code based encryption schemeMar 07 2019We present a polynomial time attack of a rank metric code based encryption scheme due to Loidreau for some parameters.
Joint Dynamic Pricing and Radio Resource Allocation Framework for IoT ServicesMar 07 2019In this paper, we study the problem of resource allocation as well as pricing in the context of Internet of things (IoT) networks. We provide a novel pricing model for IoT services where all the parties involved in the communication scenario as well as ... More
A General Construction and Encoder Implementation of Polar CodesMar 07 2019Similar to existing codes, puncturing and shortening are two general ways to obtain an arbitrary code length and code rate for polar codes. When some of the coded bits are punctured or shortened, it is equivalent to a situation in which the underlying ... More
A Scalable Max-Consensus Protocol For Noisy Ultra-Dense NetworksMar 07 2019We introduce \emph{ScalableMax}, a novel communication scheme for achieving max-consensus in a wireless network that harnesses the broadcast and superposition properties of the wireless channel. In a sufficiently dense network, the amount of communication ... More
Deep Learning for UL/DL Channel Calibration in Generic Massive MIMO SystemsMar 07 2019One of the fundamental challenges to realize massive Multiple-Input Multiple-Output (MIMO) communications is the accurate acquisition of channel state information for a plurality of users at the base station. This is usually accomplished in the UpLink ... More
Deep Learning for Channel Coding via Neural Mutual Information EstimationMar 07 2019End-to-end deep learning for communication systems, i.e., systems whose encoder and decoder are learned, has attracted significant interest recently, due to its performance which comes close to well-developed classical encoder-decoder designs. However, ... More
IoT-U: Cellular Internet-of-Things Networks over Unlicensed SpectrumMar 07 2019In this paper, we consider an uplink cellular Internet-of-Things (IoT) network, where a cellular user (CU) can serve as the mobile data aggregator for a cluster of IoT devices. To be specific, the IoT devices can either transmit the sensory data to the ... More
Rigorous Analysis of Spectral Methods for Random Orthogonal MatricesMar 07 2019Phase retrieval refers to algorithmic methods for recovering a signal from its phaseless measurements. Local search algorithms that work directly on the non-convex formulation of the problem have been very popular recently. Due to the nonconvexity of ... More
Scattering Mechanisms and Modeling for Terahertz Wireless CommunicationsMar 06 2019Mar 09 2019This paper provides an analysis of radio wave scattering for frequencies ranging from the microwave to the Terahertz band (e.g., 1 GHz - 1 THz), by studying the scattering power reradiated from various types of materials with different surface roughnesses. ... More
Scattering Mechanisms and Modeling for Terahertz Wireless CommunicationsMar 06 2019This paper provides an analysis of radio wave scattering for frequencies ranging from the microwave to the Terahertz band (e.g. 1 GHz - 1 THz), by studying the scattering power reradiated from various types of materials with different surface roughnesses. ... More
Deep Learning based End-to-End Wireless Communication Systems with Conditional GAN as Unknown ChannelMar 06 2019In this article, we develop an end-to-end wireless communication system using deep neural networks (DNNs), in which DNNs are employed to perform several key functions, including encoding, decoding, modulation, and demodulation. However, an accurate estimation ... More
Channel Decoding with Quantum Approximate Optimization AlgorithmMar 06 2019Motivated by the recent advancement of quantum processors, we investigate quantum approximate optimization algorithm (QAOA) to employ quasi-maximum-likelihood (ML) decoding of classical channel codes. QAOA is a hybrid quantum-classical variational algorithm, ... More
Spectral Method for Phase Retrieval: an Expectation Propagation PerspectiveMar 06 2019Phase retrieval refers to the problem of recovering a signal $\mathbf{x}_{\star}\in\mathbb{C}^n$ from its phaseless measurements $y_i=|\mathbf{a}_i^{\mathrm{H}}\mathbf{x}_{\star}|$, where $\{\mathbf{a}_i\}_{i=1}^m$ are the measurement vectors. Many popular ... More
WiFi-Based Indoor Localization via Multi-Band Splicing and Phase RetrievalMar 06 2019We study the problem of indoor localization using commodity WiFi channel state information (CSI) measurements. The accuracy of methods developed to address this problem is limited by the overall bandwidth used by the WiFi device as well as various types ... More
Generalized Fast-Convolution-based Filtered-OFDM: Techniques and Application to 5G New RadioMar 06 2019This paper proposes a generalized model and methods for fast-convolution (FC)-based waveform generation and processing with the specific application to fifth generation new radio (5G-NR). Following the progress of 5G-NR standardization in 3rd generation ... More
In-Band Pilot Overhead in Ultra-Reliable Low Latency Decode and Forward RelayingMar 06 2019In URLLC the performance of short message communications highly depends on the training sequence length due to the stringent latency and reliability requirements. In this paper, we study the performance of cooperative and non-cooperative transmissions ... More
Optimized Power Control for Massive MIMO with Underlaid D2D CommunicationsMar 06 2019In this paper, we consider device-to-device (D2D) communication that is underlaid in a multi-cell massive multiple-input multiple-output (MIMO) system and propose a new framework for power control and pilot allocation. In this scheme, the cellular users ... More
DeepTurbo: Deep Turbo DecoderMar 06 2019Present-day communication systems routinely use codes that approach the channel capacity when coupled with a computationally efficient decoder. However, the decoder is typically designed for the Gaussian noise channel and is known to be sub-optimal for ... More
Energy-Efficient Edge-Facilitated Wireless Collaborative Computing using Map-ReduceMar 06 2019In this work, a heterogeneous set of wireless devices sharing a common access point collaborates to perform a set of tasks. Using the Map-Reduce distributed computing framework, the tasks are optimally distributed amongst the nodes with the objective ... More
Linear Programming BoundsMar 06 2019This chapter is written for the forthcoming book "A Concise Encyclopedia of Coding Theory" (CRC press), edited by W. Cary Huffman, Jon-Lark Kim, and Patrick Sol\'e. This book will collect short but foundational articles, emphasizing definitions, examples, ... More
Distributed Policy Learning Based Random Access for Diversified QoS RequirementsMar 06 2019Future wireless access networks need to support diversified quality of service (QoS) metrics required by various types of Internet-of-Things (IoT) devices, e.g., age of information (AoI) for status generating sources and ultra low latency for safety information ... More
Learning How to Demodulate from Few Pilots via Meta-LearningMar 06 2019Consider an Internet-of-Things (IoT) scenario in which devices transmit sporadically using short packets with few pilot symbols. Each device transmits over a fading channel and is characterized by an amplifier with a unique non-linear transfer function. ... More
Compressed CSI Feedback With Learned Measurement Matrix for mmWave Massive MIMOMar 06 2019A major challenge to implement compressed sensing method for channel state information (CSI) acquisition lies in the design of a well-performed measurement matrix to subsample sparse channel vectors. The widely adopted randomized measurement matrices ... More
Planar Polynomials arising from Linearized polynomialsMar 05 2019In this paper we construct planar polynomials of the type $f_{A,B}(x)=x(x^{q^2}+Ax^{q}+x)\in \mathbb{F}_{q^3}[x]$, with $A,B \in \mathbb{F}_{q}$. In particular we completely classify the pairs $(A,B)\in \mathbb{F}_{q}^2$ such that $f_{A,B}(x)$ is planar ... More
Generalized Approximate Message Passing for Massive MIMO mmWave Channel Estimation with Laplacian PriorMar 05 2019This paper tackles the problem of millimeter-Wave (mmWave) channel estimation in massive MIMO communication systems. A new Bayes-optimal channel estimator is derived using recent advances in the approximate belief propagation (BP) Bayesian inference paradigm. ... More
Gradient Coding with Clustering and Multi-message CommunicationMar 05 2019Gradient descent (GD) methods are commonly employed in machine learning problems to optimize the parameters of the model in an iterative fashion. For problems with massive datasets, computations are distributed to many parallel computing servers (i.e., ... More
Performance Analysis of NOMA-based Cooperative Relaying in α - μ Fading ChannelsMar 05 2019Non-orthogonal multiple access (NOMA) is widely recognized as a potential multiple access technology for efficient radio spectrum utilization in the fifth-generation (5G) wireless communications standard. In this paper, we study the average achievable ... More
Closed-Loop Sparse Channel Estimation for Wideband MmWave FD-MIMO SystemsMar 05 2019This paper proposes a closed-loop sparse channel estimation (CE) scheme for wideband millimeter-wave hybrid full-dimensional multiple-input multiple-output and time division duplexing based systems, which exploits the channel sparsity in both angle and ... More
Closed-Loop Sparse Channel Estimation for Wideband MmWave FD-MIMO SystemsMar 05 2019Mar 06 2019This paper proposes a closed-loop sparse channel estimation (CE) scheme for wideband millimeter-wave hybrid full-dimensional multiple-input multiple-output and time division duplexing based systems, which exploits the channel sparsity in both angle and ... More
Cooperative Caching in Fog Radio Access Networks: A Graph-based ApproachMar 05 2019In this paper, cooperative caching is investigated in fog radio access networks (F-RAN). To maximize the offloaded traffic, cooperative caching optimization problem is formulated. By analyzing the relationship between clustering and cooperation and utilizing ... More
Probabilistic refinement of the asymptotic spectrum of graphsMar 05 2019The asymptotic spectrum of graphs, introduced by Zuiddam (arXiv:1807.00169, 2018), is the space of graph parameters that are additive under disjoint union, multiplicative under the strong product, normalized and monotone under homomorphisms between the ... More
Learning to Branch: Accelerating Resource Allocation in Wireless NetworksMar 05 2019Resource allocation in wireless networks, such as device-to-device (D2D) communications, is usually formulated as mixed integer nonlinear programming (MINLP) problems, which are generally NP-hard and difficult to get the optimal solutions. Traditional ... More
Multi-tone Signal Optimization for Wireless Power Transfer in the Presence of Wireless Communication LinksMar 05 2019In this paper, we study optimization of multi-tone signals for wireless power transfer (WPT) systems. We investigate different non-linear energy harvesting models. Two of them are adopted to optimize the multi-tone signal according to the channel state ... More