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Histogram compensation to improve blind modulation detection in adaptive OFDM
Author(s)
Lakanchanh, Donekeo
Yoshizawa, Shingo
Noppanakeepong, Suthichai
Miyanaga, Yoshikazu
Date Issued
December 1, 2009
Type
Conference Paper
Abstract
This paper proposes a blind modulation detection technique for adaptive orthogonal frequency division multiplexing (Adaptive OFDM) communications. Adaptive modulations are applied to improve communication performance in OFDM over complicated multi-path fading channels. This paper proposes a new method which reduces detection errors in blind modulation and improves communication throughput in adaptive OFDM systems. The new proposed is based on statistical methods using a combination of distance histogram and phase histogram methods. It can improve communication performance and increases a data rate by not sending side information about modulation modes. The proposed method has showed better blind detection performance at lower SNR regions than the previous method. ©2009 IEEE.
Citation
Ispacs 2009 2009 International Symposium on Intelligent Signal Processing and Communication Systems Proceedings, 9-12, 2009