A subcarrier average based block-by-block blind channel estimation algorithm for multi-user OFDM systems

被引：0
|
作者：
Tsai, Teng-Han [1 ]
Chen, Xiang [2 ]
Chi, Chong Yung [1 ]
Ma, Wing-Kin [1 ]
Zhou, Shidong [2 ]
Yao, Yan [2 ]
机构：
[1] Natl Tsing Hua Univ, Inst Commun Eng, Hsinchu, Taiwan
[2] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China
来源：
2007 IEEE 8TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, VOLS 1 AND 2 | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a block-by-block blind channel estimation algorithm is proposed for a multiuser orthogonal frequency division multiplexing (OFDM) system with an antenna array at the base station and a single antenna at each mobile unit. Provided that the channel is static within an OFDM block (i.e., block fading channel), based on the subcarrier averaging the proposed channel estimation algorithm can estimate all the channel parameters (directions of arrival, time delays and multipath gains of all the users) within only one OFDM block. Some simulation results are provided to justify the efficacy of the proposed channel estimation algorithm even when the total number of subcarriers is not very large.
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页码：111 / +
页数：2
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