Channel estimation for OFDM systems with subspace persuit algorithm

Wen-Rong Wu*, Ruey Ching Chiueh, Fan Shuo Tseng

*此作品的通信作者

研究成果: Conference contribution同行評審

13 引文 斯高帕斯(Scopus)

摘要

Signal recovery techniques for compressive sampling, such as matching pursuit (MP), orthogonal MP (OMP), and linear programming (LP), have been developed and applied to the spare channel estimation problem in orthogonal-frequency-division-multiplexed (OFDM) systems. In this paper, we first propose using a newly developed algorithm, subspace pursuit (SP), for the channel estimation problem. It is shown that the SP algorithm can outperform the MP, OMP, and LP algorithms. However, the SP algorithm will fail if the number of the pilots is small. We then propose a decision-feedback method, referred to as the pseudo-pilot assisted (PA) SP, which can be used in low pilot-density scenarios. Simulations show that the proposed PASP can significantly improve the performance of channel estimation when the number of pilots is small.

原文English
主出版物標題1st International Conference on Green Circuits and Systems, ICGCS 2010
頁面269-272
頁數4
DOIs
出版狀態Published - 20 9月 2010
事件1st International Conference on Green Circuits and Systems, ICGCS 2010 - Shanghai, China
持續時間: 21 6月 201023 6月 2010

出版系列

名字1st International Conference on Green Circuits and Systems, ICGCS 2010

Conference

Conference1st International Conference on Green Circuits and Systems, ICGCS 2010
國家/地區China
城市Shanghai
期間21/06/1023/06/10

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