28 citations · 73 across the 34 of their papers we have counts for
14 papers · 1 filter
Revealing the Impact of SIC in NOMA-ISAC
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
The impact of successive interference cancellation (SIC) in non-orthogonal multiple access integrated sensing and communications (NOMA-ISAC) is analyzed. A two-stage SIC-based fram…
MIMO-ISAC: Performance Analysis and Rate Region Characterization
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This article analyzes the performance of sensing and communications (S\&C) achieved by a multiple-input multiple-output downlink integrated S\&C (ISAC) system. Three ISAC scenarios…
Some Discussions on PHY Security in DF Relay
Chongjun Ouyang, Hao Xu, Xujie Zang +1
Physical layer (PHY) security in decode-and-forward (DF) relay systems is discussed. Based on the types of wiretap links, the secrecy performance of three typical secure DF relay m…
Performance of Downlink and Uplink Integrated Sensing and Communications (ISAC) Systems
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This letter analyzes the fundamental performance of integrated sensing and communications (ISAC) systems. For downlink and uplink ISAC, the diversity orders are analyzed to evaluat…
On the Performance of Uplink ISAC Systems
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This letter analyzes the performance of uplink integrated sensing and communications (ISAC) systems where communication users (CUs) and radar targets (RTs) share the same frequency…
On the Ergodic Mutual Information of Keyhole MIMO Channels With Finite-Alphabet Inputs
Chongjun Ouyang, Ali Bereyhi, Saba Asaad +3
This letter studies the ergodic mutual information (EMI) of keyhole multiple-input multiple-output channels having finite-alphabet input signals. The EMI is first investigated for…
On the Ergodic Capacity of Reconfigurable Intelligent Surface (RIS)-Aided MIMO Channels
Chongjun Ouyang, Hao Xu, Xujie Zang +1
Reconfigurable intelligent surfaces (RISs) have emerged as a promising technique to enhance the system spectral efficiency. This paper investigates the ergodic channel capacity (EC…
Expectation-Maximization-Aided Hybrid Generalized Expectation Consistent for Sparse Signal Reconstruction
Qiuyun Zou, Haochuan Zhang, Hongwen Yang
The reconstruction of sparse signal is an active area of research. Different from a typical i.i.d. assumption, this paper considers a non-independent prior of group structure. For…
Estimation for High-Dimensional Multi-Layer Generalized Linear Model -- Part II: The ML-GAMP Estimator
Qiuyun Zou, Haochuan Zhang, Hongwen Yang
This is Part II of a two-part work on the estimation for a multi-layer generalized linear model (ML-GLM) in large system limits. In Part I, we had analyzed the asymptotic performan…
Estimation for High-Dimensional Multi-Layer Generalized Linear Model -- Part I: The Exact MMSE Estimator
Haochuan Zhang, Qiuyun Zou, Hongwen Yang
This two-part work considers the minimum means square error (MMSE) estimation problem for a high dimensional multi-layer generalized linear model (ML-GLM), which resembles a feed-f…
Multi-Layer Bilinear Generalized Approximate Message Passing
Qiuyun Zou, Haochuan Zhang, Hongwen Yang
In this paper, we extend the bilinear generalized approximate message passing (BiG-AMP) approach, originally proposed for high-dimensional generalized bilinear regression, to the m…
Massive Access in Multi-cell Wireless Networks Using Reed-Muller Codes
Pei Yang, Dongning Guo, Hongwen Yang
Providing connectivity to a massive number of devices is a key challenge in 5G wireless systems. In particular, it is crucial to develop efficient methods for active device identif…
Mutual Information Approximation
Chongjun Ouyang, Sheng Wu, Hongwen Yang
To provide an efficient approach to characterize the input-output mutual information (MI) under additive white Gaussian noise (AWGN) channel, this short report fits the curves of e…
Evaluate the Word Error Rate of Binary Block Codes with Square Radius Probability Density Function
Xiaogang Chen, Hongwen Yang, Jian Gu +1
The word error rate (WER) of soft-decision-decoded binary block codes rarely has closed-form. Bounding techniques are widely used to evaluate the performance of maximum-likelihood…