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http://dx.doi.org/10.9728/dcs.2011.12.3.355

Performance Analysis of Adaptive OFDM Systems using Adaptive Equalizer  

Kang, Heau-Jo (목원대학교 컴퓨터공학과)
Publication Information
Journal of Digital Contents Society / v.12, no.3, 2011 , pp. 355-360 More about this Journal
Abstract
In this paper, the performance of OFDM (Orthogonal Frequency Division Multiplexing) was assessed by using computer simulations performed using Matlab. We analyzed channel estimation algorithm for adaptive modulation techniques and effect of system using designed simulator in Multimedia wireless communication multipath fading channel environment. Also, we analyzed performance of adaptive OFDM systems that apply adaptive equalizer using guided result through BER. In result, in case of adaptive modulation OFDM systems that modulation mode changes according to channel state, we knew that adaptive modulation OFDM systems have gains of about 7dB performance than general system (BER=$10^{-1}$). Thus we know that adaptive OFDM propose systems is required for efficient transmission in the high speed Multimedia wireless communication channel environment.
Keywords
adaptive OFDM; Multimedia Communication; adaptive equalizer; BER;
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