標題: A group matching pursuit algorithm for sparse channel estimation for OFDM transmission
作者: Wu, Chun-Jung
Lin, David W.
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 1-Jan-2006
摘要: Time-domain channel estimation techniques have been proposed for OFDM systems for their ability to yield relatively accurate estimates with only a few pilots. Key information needed in such techniques is the multipath delays of the channel. Prior approaches to estimation of multipath delays require regular pilot structures and may not work in slow fading. We propose a group matching pursuit technique for channel estimation. The technique is an extension of the orthogonal matching pursuit technique. It employs the pilots in several OFDM symbols to estimate the multipath delays in a sequential manner, where the pilots can have an arbitrary structure. Simulation results show that the proposed algorithm has superior performance.
URI: http://hdl.handle.net/11536/150958
ISSN: 1520-6149
期刊: 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, Vols 1-13
起始頁: 4099
結束頁: 4102
Appears in Collections:Conferences Paper