標題: A novel two-stage channel estimation method for wireless communications
作者: Lin, WJ
Lin, TT
Huang, CC
電信工程研究所
Institute of Communications Engineering
關鍵字: two-stage channel estimation;least-squares;correlation;maximum channel memory;mean square error
公開日期: 1-Jun-2004
摘要: In this paper, we proposed a novel two-stage channel estimation (2S-CE) method. In contrast to conventional channel estimation methods, this method makes the maximum use of the information contributed by the known data in every transmission burst. In the first stage, the least-squares (LS) algorithm was used to estimate the channel impulse response (CIR) based on the normal training sequence. Then the maximum channel memory was estimated and used to locate the uncorrupted data in the guard interval. In the second stage, the uncorrupted data together with the normal training sequence were sent to the LS algorithm again to obtain the fine-tuned CIR. To verify the efficiency of the proposed 2S-CE method, both a theoretical analysis and computer simulations have been done. Computer simulation results confirm the analysis results and demonstrate that the proposed 2S-CE method outperforms a conventional single-stage channel estimation method.
URI: http://hdl.handle.net/11536/26736
ISSN: 0916-8516
期刊: IEICE TRANSACTIONS ON COMMUNICATIONS
Volume: E87B
Issue: 6
起始頁: 1479
結束頁: 1486
Appears in Collections:Articles