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A Study on Channel Equalization in Time Varying Channels for Mobile Communication System  

Park No-Jin (서정대학)
Kim Dong-Ok (한국정보통신기능대학)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.10, no.1, 2006 , pp. 29-35 More about this Journal
Abstract
The third generation mobile communications system requiring the reliable multimedia data transmission has provided with the reliable voice, data and video services over the variable propagation environment. However the broadband wireless multiple access technologies cause Inter Symbol Interference(ISI) or Multiple Access Interference(MAI) to degrade the performance of CDMA(Code Division Multiple Access) system. Constant Modulus Algorithm which is frequently used as the adaptive blind equalizers to remove the interfering signal has ill-convergence phenomenon without proper initialization. In this paper, new blind equalization method based on conventional CMA is proposed to improve the channel efficiency, and through computer simulation this is tested over the time varying fading environment of mobile communication system. consequently, new blind equalization method into concatenated Kalman filter with CMA is verified better than conventional CMA through adopting minimum mean square errors and eye-pattern obtained from algorithm are compared.
Keywords
CMA; CDMA; Equalization; ISI;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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