Bit Error Rate Analysis of OFDM with Pilot-Assisted Channel Estimation

Richol KU  Shinsuke TAKAOKA  Fumiyuki ADACHI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B   No.7   pp.1725-1733
Publication Date: 2007/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.7.1725
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  channel estimation,  impulse response,  polynomial interpolation,  decision feedback,  Wiener filter,  

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Summary: 
The objective of this paper is to develop the theoretical foundation to the pilot-assisted channel estimation using delay-time domain windowing for the coherent detection of OFDM signals. The pilot-assisted channel estimation using delay-time domain windowing is jointly used with polynomial interpolation, decision feedback and Wiener filter. A closed-form BER expression is derived. The impacts of the delay-time domain window width, multipath channel decay factor, the maximum Doppler frequency are discussed. The theoretical analysis is confirmed by computer simulation.