67 citations · 132 across the 36 of their papers we have counts for
7 papers · 1 filter
Transmit Power Pool Design for Grant-Free NOMA-IoT Networks via Deep Reinforcement Learning
Muhammad Fayaz, Wenqiang Yi, Yuanwei Liu +1
Grant-free non-orthogonal multiple access (GF-NOMA) is a potential multiple access framework for short-packet internet-of-things (IoT) networks to enhance connectivity. However, th…
Signal Fractions Analysis and Safety-Distance Modeling in V2V Inter-lane Communications
Wenqiang Yi, Yuanwei Liu, Arumugam Nallanathan
For vehicular networks, safety distances are important, but existing spatial models fail to characterize this parameter, especially for inter-lane communications. This work propose…
Multiple Transmit Power Levels based NOMA for Massive Machine-type Communications
Wenqiang Yi, Wenjuan Yu, Yuanwei Liu +3
This paper proposes a tractable solution for integrating non-orthogonal multiple access (NOMA) into massive machine-type communications (mMTC) to increase the uplink connectivity.…
Semi-Grant-Free NOMA: Ergodic Rates Analysis with Random Deployed Users
Chao Zhang, Yuanwei Liu, Wenqiang Yi +2
Semi-grant-free (Semi-GF) non-orthogonal multiple access (NOMA) enables grant-free (GF) and grant-based (GB) users to share the same resource blocks, thereby balancing the connecti…
Reconfigurable Intelligent Surfaces Aided Multi-Cell NOMA Networks: A Stochastic Geometry Model
Chao Zhang, Wenqiang Yi, Yuanwei Liu
By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogo…
Resource Allocation in Uplink NOMA-IoT Networks: A Reinforcement-Learning Approach
Waleed Ahsan, Wenqiang Yi, Zhijin Qin +2
Non-orthogonal multiple access (NOMA) exploits the potential of the power domain to enhance the connectivity for the Internet of Things (IoT). Due to time-varying communication cha…
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…