Effects of channel estimation error on the BER performance of OFDM systems in multipath Rayleigh Fading channels

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Title:	Effects of channel estimation error on the BER performance of OFDM systems in multipath Rayleigh Fading channels
Authors:	Yih, Chi-Hsiao
Contributors:	淡江大學電機工程學系
Date:	2007-09-30
Issue Date:	2011-10-23 21:14:59 (UTC+8)
Publisher:	IEEE Vehicular Technology Society
Abstract:	In this paper, we study the effects of channel estimation error on the bit error rate (BER) of orthogonal frequency division multiplexing systems in multipath Rayleigh fading channels. Due to the additive white Gaussian noise and the intercarrier interference caused by the residual carrier frequency offset, the channel estimation based on the training symbols is not perfect. We characterize the performance degradation resulting from imperfect channel state information by deriving the BER formulas for BPSK, QPSK, and 16-QAM modulation schemes. Simulation results validate the accuracy of our derived formulas.
Relation:	Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th, pp.1097-1101
DOI:	10.1109/VETECF.2007.237
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Proceeding

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