Blind joint symbol detection and DOA estimation for OFDM system with antenna array

被引：18
|
作者：
Zhang, Xiaofei [1 ]
Feng, Bao [1 ]
Xu, Dazhuan [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Dept Elect Engn, Nanjing 210016, Peoples R China
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2008年 / 46卷 / 03期
关键词：
OFDM; antenna array; trilinear model; joint processing; symbol detection; DOA estimation;
D O I：
10.1007/s11277-007-9440-7
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
An analysis of the received signal of Orthogonal frequency division multiplexing (OFDM) system with array antennas shows that the received signal has trilinear model characteristics. Trilinear decomposition-based joint symbol detection and direction of arrival (DOA) estimation for OFDM system with antenna array is proposed in this paper. The simulation results reveal that the symbol detection performance of the proposed algorithm is very close to the post-FFT receiver with perfect channel state information; DOA estimation performance is very close to least squares method, and even this algorithm supports small sample sizes. Finally this algorithm does not require the channel fading information, DOA and training sequence or pilot information, so it has blind characteristics.
引用
收藏
页码：371 / 383
页数：13
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