725 citations · 6.1k across the 252 of their papers we have counts for
16 papers · 2 filters
Binary Locally Repairable Codes ---Sequential Repair for Multiple Erasures
Wentu Song, Chau Yuen
Locally repairable codes (LRC) for distribute storage allow two approaches to locally repair multiple failed nodes: 1) parallel approach, by which each newcomer access a set of …
A Low-Complexity Gaussian Message Passing Iterative Detector for Massive MU-MIMO Systems
Lei Liu, Chau Yuen, Yong Liang Guan +2
This paper considers a low-complexity Gaussian Message Passing Iterative Detection (GMPID) method over a pairwise graph for a massive Multiuser Multiple-Input Multiple-Output (MU-M…
Asymptotic Orthogonality Analysis of Time-Domain Sparse Massive MIMO Channels
Zhen Gao, Linglong Dai, Chau Yuen +1
The theoretical analysis of downlink massive MIMO usually assumes the ideal Gaussian channel matrix with asymp- totic orthogonality of channel vectors associated with different use…
Locally Repairable Codes with Functional Repair and Multiple Erasure Tolerance
Wentu Song, Chau Yuen
We consider the problem of designing [n; k] linear codes for distributed storage systems (DSS) that satisfy the (r, t)-Local Repair Property, where any t'(<=t) simultaneously faile…
Super-Resolution Sparse MIMO-OFDM Channel Estimation Based on Spatial and Temporal Correlations
Zhen Gao, Linglong Dai, Zhaohua Lu +2
This letter proposes a parametric sparse multiple input multiple output (MIMO)-OFDM channel estimation scheme based on the finite rate of innovation (FRI) theory, whereby super-res…
Turbo-Like Beamforming Based on Tabu Search Algorithm for Millimeter-Wave Massive MIMO Systems
Xinyu Gao, Linglong Dai, Chau Yuen +1
For millimeter-wave (mmWave) massive MIMO systems, the codebook-based analog beamforming (including transmit precoding and receive combining) is usually used to compensate the seve…
Local Codes with Addition Based Repair
Han Mao Kiah, Son Hoang Dau, Wentu Song +1
We consider the complexities of repair algorithms for locally repairable codes and propose a class of codes that repair single node failures using addition operations only, or code…
Large System Analysis of Cognitive Radio Network via Partially-Projected Regularized Zero-Forcing Precoding
Jun Zhang, Chao-Kai Wen, Chau Yuen +2
In this paper, we consider a cognitive radio (CR) network in which a secondary multiantenna base station (BS) attempts to communicate with multiple secondary users (SUs) using the…
Large-Scale MIMO Relaying Techniques for Physical Layer Security: AF or DF?
Xiaoming Chen, Lei Lei, Huazi Zhang +1
In this paper, we consider a large scale multiple input multiple output (LS-MIMO) relaying system, where an information source sends the message to its intended destination aided b…
Weakly Secure MDS Codes for Simple Multiple Access Networks
Son Hoang Dau, Wentu Song, Chau Yuen
We consider a simple multiple access network (SMAN), where sources of unit rates transmit their data to a common sink via relays. Each relay is connected to the sink and to…
Locally Encodable and Decodable Codes for Distributed Storage Systems
Son Hoang Dau, Han Mao Kiah, Wentu Song +1
We consider the locality of encoding and decoding operations in distributed storage systems (DSS), and propose a new class of codes, called locally encodable and decodable codes (L…
Multi-Antenna Relay Aided Wireless Physical Layer Security
Xiaoming Chen, Caijun Zhong, Chau Yuen +1
With growing popularity of mobile Internet, providing secure wireless services has become a critical issue. Physical layer security (PHY-security) has been recognized as an effecti…
On the Solvability of 3s/nt Sum-Network---A Region Decomposition and Weak Decentralized Code Method
Wentu Song, Kai Cai, Chau Yuen +1
We study the network coding problem of sum-networks with 3 sources and n terminals (3s/nt sum-network), for an arbitrary positive integer n, and derive a sufficient and necessary c…
Erasure codes with symbol locality and group decodability for distributed storage
Wentu Song, Son Hoang Dau, Chau Yuen
We introduce a new family of erasure codes, called group decodable code (GDC), for distributed storage system. Given a set of design parameters {α; β; k; t}, where k is the number…
On Interference Alignment with Imperfect CSI: Characterizations of Outage Probability, Ergodic Rate and SER
Xiaoming Chen, Chau Yuen
In this paper, we give a unified performance analysis of interference alignment (IA) over MIMO interference channels. Rather than the asymptotic characterization, i.e. degree of fr…
On the Effect of I/Q Imbalance on Energy Detection and a Novel Four-Level Hypothesis Spectrum Sensing
Omid Semiari, Behrouz Maham, Chau Yuen
Direct-conversion transceivers are in demand, due to low implementation cost of analog front-ends. However, these transmitters or receivers introduce imperfections such as in-phase…