Robust Decentralized Coordinated Precoding in Multi-cell Coherent Joint Transmission Networks

doi:10.1109/GLOBECOM52923.2024.10901185

	Robust Decentralized Coordinated Precoding in Multi-cell Coherent Joint Transmission Networks
	Shaojun Wan1,2 ; Xinyu Bian 2,3; Wenjie Wang 2; Tianqi Hou 2; Yong Zhou1
	2024-12-12
会议录名称	GLOBECOM 2024 - 2024 IEEE GLOBAL COMMUNICATIONS CONFERENCE
ISSN	1930-529X
DOI	10.1109/GLOBECOM52923.2024.10901185
摘要	Coherent joint transmission (CJT) is a promising technology to improve the spectral efficiency of multi-cell communication systems. In this paper, we investigate the transmit power minimization problem in multi-cell CJT networks. To realize the decentralized coordination that avoids the costly exchange of instantaneous channel state information, we leverage the deterministic equivalents for the approximation of inter-cell interference to decouple the overall precoding problem into independent sub-problems, which can be solved locally at each base station. In addition, to compensate the performance loss caused by the channel aging, we further propose a robust precoding scheme and develop an efficient solver based on the alternating direction method of multiplier. Extensive numerical results show that both the decentralized coordination and robust precoding design provide our proposed method with performance improvement.
会议地点	Cape Town, South Africa
会议日期	8-12 Dec. 2024
URL	查看原文
来源库	IEEE
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/424519
专题	信息科学与技术学院信息科学与技术学院_PI研究组_周勇组信息科学与技术学院_博士生
作者单位	1.School of Information Science and Technology, ShanghaiTech University, Shanghai, China 2.Theory Lab, Central Research Institute, 2012 Labs, Huawei Technologies Co., Ltd., Hong Kong, China 3.Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong, China
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Shaojun Wan,Xinyu Bian,Wenjie Wang,et al. Robust Decentralized Coordinated Precoding in Multi-cell Coherent Joint Transmission Networks[C],2024.