A Novel Codebook Design with the LBG Algorithm in Precoding Systems under Spatial Correlated Channel

摘要：

Precoding is an efficient approach to obtain high channel capacities and high quality in multiple-input-multipleoutput systems and draws much attention in recent researches. In the codebook-based precoding systems, the tradeoff between performance and feedback overhead should be considered. In this paper, a novel version of the Linde-Buzo-Gray (LBG) algorithm is first utilized in the codebook design by redefining a set of operations in the conventional LBG algorithm. Moreover, the codebook can be trained online under spatial correlated channel adapting to the channel variation. Simulation results demonstrate that the proposed codebook design achieves better robustness, smaller quantization error and higher capacity than the traditional fixed uniform codebook design does.

作者: Yueying Zhang Hang Long Shanshan Shen Kan Zheng Wenbo Wang

作者单位: Wireless Signal Processing and Network Laboratory, Beijing University of Posts & Telecommunications, Beijing China

会议类型: 国际会议

会议名称: 2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)

会议地点: 成都

会议语种:英文

页码: 32-36

在线出版日期: 2010-06-28（万方平台首次上网日期，不代表论文的发表时间）