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Bit Error Rate Analysis of OFDM with Pilot-Assisted Channel Estimation
Richol KU Shinsuke TAKAOKA Fumiyuki ADACHI
IEICE TRANSACTIONS on Communications
Publication Date: 2007/07/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
OFDM, channel estimation, impulse response, polynomial interpolation, decision feedback, Wiener filter,
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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.