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Adaptive modulation techniques are becoming very important for mobile communication systems due to dynamic characteristics of the medium. Diversity is another technique which further improves the performance of mobile communication system. In this paper the performance of adaptive M-QAM modulation technique has been evaluated in term of BER with diversity. A comparison of different values of the constellation...
Adaptive modulation and coding schemes are promising technique to support the demands for high data rates and wideband proposed for 4G mobile communication system standards. The spectrally efficient modulation schemes are the dominant trend in mobile communication system after 3G mobile system and the adaptive modulation system is suggested to be the best solution for bandwidth efficient system. In...
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