An Improved Distributed Iterative Beamforming Algorithm with Cooperative Base Stations
In this paper, an improved distributed iterative beamforming algorithm is proposed for cooperative base stations, and the detailed characterizations with instantaneous and statistical CSI are presented. Firstly, virtual signal-to-interferenceplus- noise ratio (SINR) instead of user rate is chosen as decision criterion to avoid feeding back message by users to tell the base stations which strategy should be initialized with and whether to terminate the iteration. Then, the number of iterations is decreased through solving a constrained optimization problem of maximizing the virtual SINR for a given level of generated interference to the other users which can be converted into a standard convex optimization problem and solved by tools of mathematical programming. Finally, the performance of the proposed algorithm is evaluated.
Jiamin Li Dongming Wang Pengcheng Zhu Xiaohu You Lan Tang
National Mobile Communications Research Lab.,Southeast University,Nanjing, China 210096 School of Electronic Science and Engineering, Nanjing University, Nanjing, China 210096
国际会议
南京
英文
1-5
2011-11-09（万方平台首次上网日期，不代表论文的发表时间）