Title :
Optimal selection of pilot positions for frequency domain pilot multiplexing channel estimation in SC-FDE systems
Author :
Miaowen Wen ; Xiang Cheng ; Cheng-Xiang Wang ; Miao Wang ; Bingli Jiao
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China
Abstract :
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.
Keywords :
OFDM modulation; channel estimation; error statistics; frequency-domain analysis; BER; FDPMT; PPS problem; SC-FDE systems; bit error rate; channel estimation; frequency domain equalization; frequency domain pilot multiplexing technique; optimal PPS technique; pilot position selection problem; single-carrier block transmission; suboptimal property; Bit error rate; Channel estimation; Error probability; Frequency-domain analysis; Minimization; Signal to noise ratio;
Conference_Titel :
Communications (ICC), 2014 IEEE International Conference on
Conference_Location :
Sydney, NSW
DOI :
10.1109/ICC.2014.6884124