6 citations · 11 across the 7 of their papers we have counts for
7 papers
Performance Analysis of Reconfigurable Intelligent Surface Assisted Two-Way NOMA Networks
Ziwei Liu, Xinwei Yue, Chao Zhang +4
This paper investigates the performance of reconfigurable intelligent surface assisted two-way non-orthogonal multiple access (RIS-TW-NOMA) networks, where a pair of users exchange…
Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems
Boqun Zhao, Chao Zhang, Wenqiang Yi +1
This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) sys…
Semi-Integrated-Sensing-and-Communication (Semi-ISaC): From OMA to NOMA
Chao Zhang, Wenqiang Yi, Yuanwei Liu +1
The new concept of semi-integrated-sensing-and-communication (Semi-ISaC) is proposed for next-generation cellular networks. Compared to the state-of-the-art, where the total bandwi…
Semi-Integrated-Sensing-and-Communication (Semi-ISaC) Networks Assisted by NOMA
Chao Zhang, Wenqiang Yi, Yuanwei Liu
This paper investigates non-orthogonal multiple access (NOMA) assisted integrated sensing and communication (ISaC) networks. Compared to the conventional ISaC networks, where the t…
STAR-IOS Aided NOMA Networks: Channel Model Approximation and Performance Analysis
Chao Zhang, Wenqiang Yi, Yuanwei Liu +2
Simultaneous transmitting and reflecting intelligent omini-surfaces (STAR-IOSs) are able to achieve full coverage "smart radio environments". By splitting the energy or altering th…
Semi-Grant-Free NOMA: A Stochastic Geometry Model
Chao Zhang, Yuanwei Liu, Zhijin Qin +1
Grant-free (GF) transmission holds promise in terms of low latency communication by directly transmitting messages without waiting for any permissions. However, collision situation…
Downlink Analysis for Reconfigurable Intelligent Surfaces Aided NOMA Networks
Chao Zhang, Wenqiang Yi, Yuanwei Liu +2
By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogo…