Title :
Optimal pilot sequences design for MIMO OFDM channel estimation
Author :
Li, Yun ; Li, Shiju ; Yi, Zhiqiang
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents optimal pilot sequences for the estimation of frequency-selective channels in multi-input multioutput orthogonal frequency division multiplex (MIMO-OFDM) systems. The channel estimation solution has very low complexity and flexible antenna structure. With the proposed pilot structure, we can obtain the optimal mean square error (MSE) performance of channel estimation in space domain and optimal peak to average power ratio (PAPR) performance of OFDM symbols in frequency domain. Simulation results demonstrate the effectiveness of the proposed scheme.
Keywords :
MIMO communication; OFDM modulation; channel estimation; mean square error methods; MIMO OFDM channel estimation; flexible antenna structure; frequency selective channel; multi-input multi-output system; optimal mean square error method; optimal pilot sequence design; orthogonal frequency division multiplex systems; space domain; Channel estimation; Design engineering; Frequency division multiplexing; Frequency estimation; Information science; MIMO; Mean square error methods; OFDM; Peak to average power ratio; Receiving antennas; MIMO; OFDM; channel estimation; pilot sequences;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371602
