Clustering Approaches for Overhead Reduction over Coordinated Multiple Points Network-MIMO Downlink Systems  

作　　者：Xiao Shanghui Zhang Zhongpei Shi Zhiping 

机构地区：[1]National Key Lab of Communication, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China [2]School of Physics and Electronic Engineering, Yibin University, Yibin 644007, P. R. China [3]National Mobile Communications Research Lab, Southeast University, Nanjing 211189, P. R. China

出　　处：《China Communications》2010年第5期103-111,共9页中国通信（英文版）

摘　　要：Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lot of attention. In this paper, the system structure and mathematical signal model based on clustered structure are presented for multipoint coordinating downlink transmission, the clustered supercell configurations with static/dynamic approaches are discussed, and then optimal precod- ing design is provided for an accepted level of scheduling complexity and reduced signaling over- head. Some simulation results are given to evaluate the performance of different cell-clustering approaches, and to show that a clustered supercell size of 7 is a reasonable choice for clustered coordination with the given transmit power and the reduced feedback.

关 键 词：overhead reduction clustering approa-ches SUPERCELL MIMO ss STEMS cooperative com-munication 

分 类 号：TN929.533[电子电信—通信与信息系统] TP311.13[电子电信—信息与通信工程]