Joint space-frequency iterative interference suppression in multiuser MIMO-OFDM systems

被引：3
|
作者：
Huang, Min [1 ]
Li, Yunzhou [1 ]
Zhou, Shidong [1 ]
Wang, Jing [1 ]
机构：
[1] Tsing Hua Univ, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2007年 / 11卷 / 10期
关键词：
orthogonal frequency-division multiplexing (OFDM); multiple-input multiple-output (MIMO); multiuser; uplink; joint space-frequency; iterative;
D O I：
10.1109/LCOMM.2007.070949
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In uplink multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems, inter-user interference includes co-channel interference (CCI) due to spatial multiplexing and inter-carrier interference (ICI) due to carrier-frequency offset (CFO). In this letter, a space-frequency joint processing scheme is proposed to suppress the two-dimensional interference alternatively and iteratively. Moreover, by the studies of convergence behavior of iterations, a sufficient condition for convergence is presented. The theoretical analysis and simulation results both show that this iterative scheme can effectively suppress inter-user interference with low complexity.
引用
收藏
页码：802 / 804
页数：3
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