Comb-Pattern optimal pilot in MIMO-OFDM system

Authors:
Qihong Ge;Huazhong Yang
Affiliations:
Dept. of Electronic Engr., Tsinghua Univ., Beijing, China;Dept. of Electronic Engr., Tsinghua Univ., Beijing, China
Venue:
ICCNMC'05 Proceedings of the Third international conference on Networking and Mobile Computing
Year:
2005

Citing 4
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Abstract

Channel estimation is very important for MIMO (Multiple Input Multiple Output) OFDM (Orthogonal Frequency Division Multiplexing) systems, while computation required is relatively large. Block-pattern optimal pilot reduces the computation, but is not suitable for high speed mobile environment. In this paper, comb-pattern optimal pilot is proposed to reduce the error of channel estimation. It can be proved by simulation that performance of system with comb-pattern optimal pilot is much better than that with block-pattern optimal pilot, and the computation required is still small.