An Improved Channel Estimation Method for OFDM Systems

摘要：

This paper studies on the estimation problem of wireless channel in the Orthogonal Frequency Division Multiplexing (OFDM). It, on the basis of the commonly used equivalent discrete channel and actual channel model-based parametric channel estimation algorithm, uses the parametric channel model of the FTCA to make channel estimation to solve the leaks caused by channel impulse response (CIR) in actual system. However, this FTCA-based channel estimation algorithm is an approximate orthogonal calculation. It will not work properly on the reduction of the pilot frequency. Such issue of requiring excessive pilot frequency has been solved in this paper. The performance of the channel estimation wouldnt be declined much when it adopts less pilot frequency, so that to improve its application efficiency.

关键词： Orthogonal frequency division multiplexing Channel estimation FTCA model

作者: Jun Shi Ze-min Liu

作者单位: School of Information and Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

会议类型: 国际会议

会议名称: 2012 International Conference on Future Communication and Computer Technology(2012未来通信与计算机技术国际会议ICFCCT 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 180-185

在线出版日期: 2012-05-19（万方平台首次上网日期，不代表论文的发表时间）