3 papers
cs.IT2025
Achievable Second-Order Asymptotics for MAC and RAC with Additive Non-Gaussian Noise
Yiming Wang, Lin Bai, Zhuangfei Wu +1
We first study the two-user additive noise multiple access channel (MAC) where the noise distribution is arbitrary. For such a MAC, we use spherical codebooks and either joint near…
eess.SP2025
Collaborative Secret and Covert Communications for Multi-User Multi-Antenna Uplink UAV Systems: Design and Optimization
Jinpeng Xu, Lin Bai, Xin Xie +1
Motivated by diverse secure requirements of multi-user in UAV systems, we propose a collaborative secret and covert transmission method for multi-antenna ground users to unmanned a…
cs.IT2024
The Dispersion of Broadcast Channels With Degraded Message Sets Using Gaussian Codebooks
Zhuangfei Wu, Lin Bai, Jinpeng Xu +2
We study the two-user broadcast channel with degraded message sets and derive second-order achievability rate regions. Specifically, the channel noises are not necessarily Gaussian…