RECEARCH ON ADAPTIVE PILOT PARRENT OF OFDM SYSTEM CHANNEL ESTIMATION

摘要：

Channel estimation is one of the key techniques for the implement of OFDM system, and is also the hotspot of research. Nowadays, the researches on channel estimation of OFDM system mainly focus on the adaptive filtering at receiver, but little has been done at transmitter. At first, this paper theoretically analyses OFDM system model, fundamental principle of pilot design and the constraint of adaptive filtering at receiver, then proposes a new pre-processing scheme for pilot pattern. In order to improve the channel performance and transmission efficiency, the pilot pattern will be adjusted according to channel environment. In the end, simulation results and the future possible research trend are put forward.

关键词： Orthogonal Frequency Division Multiplezing (OFDM) Channel Estimation Passive Adaptive Active Adaptive Pilot Pattern

作者: WeidongWang Yinghai Zhang Yong Zhang YuLiu

作者单位: Information & Electronics Technology Lab Beijing University of Posts and Telecommunications, PO Box 116, Beijing 100876, China

会议类型: 国际会议

会议名称: China-Ireland International Conference on Information and Communications Technologies 2008(2008 中国-爱尔兰信息与通信技术国际会议 CIICT 2008)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2008-09-26（万方平台首次上网日期，不代表论文的发表时间）