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http://dx.doi.org/10.6109/jkiice.2010.14.10.2247

Performance Improvements of WiBro System Using the LVQ Blind Equalization  

Park, Jin-Woo (tbs 서울 교통방송)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.14, no.10, 2010 , pp. 2247-2253 More about this Journal
Abstract
WiBro(Wireless Broadband Internet) is the standard of high-speed portable internet based on OFDMA/TDD (Orthogonal frequency division multiple access / Time division duplexing) techniques, and the subset of consolidated version of IEEE802.16e Wireless MAN standard. In this paper, we propose performance improvements of WiBro system using the LVQ(Learning Vector Quantization) blind equalization. Proposed method used the prefiltering LVQ neural network blind equalization in the Broadband WiBro system receiver. The prefiltering LVQ neural network constellates 16QAM that is transmitter data shape and the blind equalization removes ICI(Inter Carrier Interference). To verificate the proposed method usability, the MSE(Mean Square Error) and the BER(Bit Error Rate) are simulated. The simulation results shown that is improved the performances of the proposed WiBro system using the LVQ blind equalization than the existing WiBro system.
Keywords
WiBro; OFDMA/TDD; LVQ; Blind equalization; ICI;
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