Codebook design for uplink of densely small cells  

作　　者：Weikai Tan Aihuang Guo Wei Luo Wenjuan Sheng Yeqing Qian 

机构地区：[1]School of Electronics and Information Engineering,Tongji University

出　　处：《Journal of Systems Engineering and Electronics》2014年第4期531-537,共7页系统工程与电子技术（英文版）

基　　金：supported by the National High-tech Research and Development Program of China(863 Program)(2012AA111902);the Shanghai Natural Science Foundation(12ZR1433900)

摘　　要：The shrinking of cell-size brings significant changes to the wireless uplink of densely small cells （DSCs）. A codebook design is proposed that utilizes the strong line of sight （LOS） chan- nel component existing in a DSC system for uplink of the DSC system. To further improve the uplink performance, the high-rank codebook is designed based on singular value decomposition （SVD） due to the unnecessary preservation of strict constant modulus in the DSC system. And according to the simulation result, the proposed codebook leads to significant sum-rate gain and appreciable block error rate （BLER） performance improvement in the DSC system.The shrinking of cell-size brings significant changes to the wireless uplink of densely small cells （DSCs）. A codebook design is proposed that utilizes the strong line of sight （LOS） chan- nel component existing in a DSC system for uplink of the DSC system. To further improve the uplink performance, the high-rank codebook is designed based on singular value decomposition （SVD） due to the unnecessary preservation of strict constant modulus in the DSC system. And according to the simulation result, the proposed codebook leads to significant sum-rate gain and appreciable block error rate （BLER） performance improvement in the DSC system.

关 键 词：densely small cell （DSC） codebook design uplink line of sight （LOS）. 

分 类 号：TN929.5[电子电信—通信与信息系统]