Impact of a Novel SNR Estimation Method on Adaptive OFDM System Performance in Slow Rayleigh Fading Channels

Xiaodong XU
Ya JING
Xiaohu YOU
Junhui ZHAO

Publication
IEICE TRANSACTIONS on Communications   Vol.E89-B    No.6    pp.1947-1950
Publication Date: 2006/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.6.1947
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
SNR estimation,  adaptive modulation,  OFDM,  

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Summary: 
In this letter, we propose an FFT-based SNR estimation method for wireless OFDM systems, and analyze the impact of the proposed SNR estimation method on adaptive OFDM performance in slow Rayleigh fading channels. Numerical and simulation results show that the proposed method is effective and feasible for adaptive modulation in slow Rayleigh fading channels.