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Seventh International Network Conference (INC 2008)
Title: Genetic-Based Subcarrier and Bit Allocation Algorithm for Multiuser OFDM System
Author(s): Mahmoud El-mesalawy, Gamal Abd-Elfadeel, Ibrahim Ibrahim
Keywords: OFDM, Multiuser, Subcarrier, Bit, Allocation, Genetic.
Abstract: This paper proposes an adaptive subcarrier and bit allocation technique for multiuser OFDM (Orthogonal Frequency Division Multiplexing) system based on genetic algorithm. The objective is to minimize the overall transmission power while ensuring the per user’s data rate and Bit Error Rate (BER) requirements. This has been achieved by developing a search algorithm based on genetic system. Simulation results show that the performance of the proposed algorithm outperforms the Wong’s adaptive OFDM (MAO) algorithm in terms of computational complexity.
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