标题：Optimal Selection of Pilot Positions for Frequency Domain Pilot Multiplexing Channel Estimation in SC-FDE Systems
作者：Wen, Miaowen; Cheng, Xiang; Wang, Cheng-Xiang; Wang, Miao; Jiao, Bingli
作者机构：[Wen, Miaowen; Cheng, Xiang; Jiao, Bingli] Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China.; [Wen, Miaowen; Cheng, Xiang; Wa 更多
会议名称：IEEE International Conference on Communications (ICC)
会议日期：JUN 10-14, 2014
来源：2014 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
摘要：In this paper, we investigate the pilot position selection (PPS) problem in the frequency domain pilot multiplexing technique (FDPMT) for channel estimation of single-carrier block transmission with frequency domain equalization (SC-FDE). Unlike the widely accepted point of view that the conventional PPS technique is the optimal one, this paper for the first time questions this viewpoint and demonstrates the suboptimal property of the conventional PPS technique. To further improve the performance of the FDPMT, an optimal PPS technique is proposed based on the minimization of the average bit error rate (BER). Compared with the conventioanl PPS technique, the proposed PPS technique exhibits better performance with similar complexity.