Impact of asymmetry timing synchronization on downlink coordinated multi-point transmission

被引：0
作者：
Gu, Zhe-Qi [1 ]
Wei, Ning [1 ]
Zhang, Zhong-Pei [1 ]
机构：
[1] National Key Laboratory of Science and Technology on Communication, University of Electronic Science and Technology of China
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2014年 / 36卷 / 05期
关键词：
Channel reciprocity; Coordinated multi-point (CoMP); Precoding; Timing synchronization; Wireless communication;
D O I：
10.3969/j.issn.1001-506X.2014.05.28
中图分类号：
学科分类号：
摘要：
The asymmetric timing synchronization of the coordinated multi-point (CoMP) transmission brings new channel reciprocity errors in the time division duplex (TDD) mode. The timing synchronization reciprocity error (TSRE) is investigated and mathematically modeled. Due to the distribution of TSRE, matrix decomposition and subspace projection are used to derive the upper bound of the per-user rate loss on CoMP downlink transmission. Through the formulas of the upper bound, the performance degradation of the precoding algorithm with different system parameters is analyzed. Simulation results validate the theoretical analysis.
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收藏
页码：985 / 990
页数：5
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