190 citations · 858 across the 49 of their papers we have counts for
38 papers · 1 filter
An Optimal Transport Approach to the Computation of the LM Rate
Wenhao Ye, Huihui Wu, Shitong Wu +4
Mismatch capacity characterizes the highest information rate for a channel under a prescribed decoding metric, and is thus a highly relevant fundamental performance metric when dea…
An Indirect Rate-Distortion Characterization for Semantic Sources: General Model and the Case of Gaussian Observation
Jiakun Liu, Shuo Shao, Wenyi Zhang +1
A new source model, which consists of an intrinsic state part and an extrinsic observation part, is proposed and its information-theoretic characterization, namely its rate-distort…
Improved Receivers for Optical Wireless OFDM: An Information Theoretic Perspective
Xiaozhen Liu, Jing Zhou, Nuo Huang +1
We consider performance enhancement of asymmetrically-clipped optical orthogonal frequency division multiplexing (ACO-OFDM) and related optical OFDM schemes, which are variations o…
On the Capacity of MISO Optical Intensity Channels With Per-Antenna Intensity Constraints
Ru-Han Chen, Longguang Li, Jian Zhang +2
This paper investigates the capacity of general multiple-input single-output (MISO) optical intensity channels (OICs) under per-antenna peak- and average-intensity constraints. We…
A Rate-Distortion Framework for Characterizing Semantic Information
Jiakun Liu, Wenyi Zhang, H. Vincent Poor
A rate-distortion problem motivated by the consideration of semantic information is formulated and solved. The starting point is to model an information source as a pair consisting…
Generalized Nearest Neighbor Decoding for MIMO Channels with Imperfect Channel State Information
Shuqin Pang, Wenyi Zhang
Information transmission over a multiple-input-multiple-output (MIMO) fading channel with imperfect channel state information (CSI) is investigated, under a new receiver architectu…
Generalized Nearest Neighbor Decoding
Yizhu Wang, Wenyi Zhang
It is well known that for Gaussian channels, a nearest neighbor decoding rule, which seeks the minimum Euclidean distance between a codeword and the received channel output vector,…
Bandlimited Communication With One-Bit Quantization and Oversampling: Transceiver Design and Performance Evaluation
Rui Deng, Jing Zhou, Wenyi Zhang
We investigate design and performance of communications over the bandlimited Gaussian channel with one-bit output quantization. A transceiver structure is proposed, which generates…
A Regression Approach to Certain Information Transmission Problems
Wenyi Zhang, Yizhu Wang, Cong Shen +1
A general information transmission model, under independent and identically distributed Gaussian codebook and nearest neighbor decoding rule with processed channel output, is inves…
Bounds on the Capacity Region of the Optical Intensity Multiple Access Channel
Jing Zhou, Wenyi Zhang
This paper provides new inner and outer bounds on the capacity region of optical intensity multiple access channel (OIMAC) with per-user average or peak power constraint. For the a…
Age of Information in Poisson Networks
Yuming Hu, Yi Zhong, Wenyi Zhang
The age of information (AoI) has been extensively studied in recent years. However, few works have focused on the analysis of AoI in large wireless networks. In this work, we analy…
Capacity bounds for bandlimited Gaussian channels with peak-to-average-power-ratio constraint
Yizhu Wang, Jing Zhou, Wenyi Zhang
We revisit Shannon's problem of bounding the capacity of bandlimited Gaussian channel (BLGC) with peak power constraint, and extend the problem to the peak-to-average-power-ratio (…
A Comparative Study of Unipolar OFDM Schemes in Gaussian Optical Intensity Channel
Jing Zhou, Wenyi Zhang
We study the information rates of unipolar orthogonal frequency division multiplexing (OFDM) in discrete-time optical intensity channels (OIC) with Gaussian noise under average opt…
On the capacity of bandlimited optical intensity channels with Gaussian noise
Jing Zhou, Wenyi Zhang
We determine lower and upper bounds on the capacity of bandlimited optical intensity channels (BLOIC) with white Gaussian noise. Three types of input power constraints are consider…
On OR Many-Access Channels
Wenyi Zhang, Lingyan Huang
OR multi-access channel is a simple model where the channel output is the Boolean OR among the Boolean channel inputs. We revisit this model, showing that employing Bloom filter, a…
Toward a Tractable Delay Analysis in Ultra-dense Networks
Yi Zhong, Martin Haenggi, Fu-Chun Zheng +3
Meeting the diverse delay requirements of emerging wireless applications is one of the most critical goals for the design of ultradense networks. Though the delay of point-to-point…
Opportunistic Detection Rules: Finite and Asymptotic Analysis
Wenyi Zhang, George V. Moustakides, H. Vincent Poor
Opportunistic detection rules (ODRs) are variants of fixed-sample-size detection rules in which the statistician is allowed to make an early decision on the alternative hypothesis…
A Remark on Channels with Transceiver Distortion
Wenyi Zhang
Information transmission over channels with transceiver distortion is investigated via generalized mutual information (GMI) under Gaussian input distribution and nearest-neighbor d…
Mixed-ADC Massive MIMO Uplink in Frequency-Selective Channels
Ning Liang, Wenyi Zhang
The aim of this paper is to investigate the recently developed mixed-ADC architecture for frequency-selective channels. Multi-carrier techniques such as orthogonal frequency divisi…
A Mixed-ADC Receiver Architecture for Massive MIMO Systems
Ning Liang, Wenyi Zhang
Motivated by the demand for energy-efficient communication solutions in the next generation cellular network, a mixed-ADC receiver architecture for massive multiple input multiple…
On the Error Performance of Systematic Polar Codes
Liping Li, Wenyi Zhang, Yanjun Hu
Systematic polar codes are shown to outperform non-systematic polar codes in terms of the bit-error-rate (BER) performance. However theoretically the mechanism behind the better pe…
Mixed-ADC Massive MIMO
Ning Liang, Wenyi Zhang
Motivated by the demand for energy-efficient communication solutions in the next generation cellular network, a mixed-ADC architecture for massive multiple input multiple output (M…
An Uplink Interference Analysis for Massive MIMO Systems with MRC and ZF Receivers
Ning Liang, Wenyi zhang, Cong Shen
This paper considers an uplink cellular system, in which each base station (BS) is equipped with a large number of antennas to serve multiple single-antenna user equipments (UEs) s…
Energy Efficiency of Cross-Tier Base Station Cooperation in Heterogeneous Cellular Networks
Weili Nie, Fuchun Zheng, Xiaoming Wang +2
Heterogeneous cellular networks (HetNets) are to be deployed for future wireless communication to meet the ever-increasing mobile traffic demand. However, the dense and random depl…