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In orthogonal frequency division multiple access (OFDMA) system, the multiple access interference (MAI) is a critical factor that significantly degrades system performance. In this research, a genetic algorithm (GA) is employed for joint channel estimation and multi-user detection. For improving the weakness of GA in exploitation, an approach called simulated annealing mutated-GA (SAM-GA) is considered...
In orthogonal frequency division multiple access (OFDMA) system, the multiple access interference (MAI) is a critical factor that significantly degrades system performance. In this research, a genetic algorithm (GA) is employed for joint channel estimation and multi-user detection. For improving the weakness of GA in exploitation, an approach called simulated annealing mutated-GA (SAM-GA) is considered...
In orthogonal frequency division multiple access (OFDMA) uplink systems, carrier frequency offsets (CFOs) caused by multiple users may significantly degrade system performance. Therefore, many approaches have recently been proposed to estimate the CFOs, such as Simplified Maximum Likelihood (SML) Scheme and Fast Algorithm. While those algorithms reveal acceptable performance, their computational burdens...
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