Minimum bit error rate multiuser detection for OFDM-SDMA using particle swarm optimization

Authors:
Habib ur Rehman;Imran Zaka;Muhammad Naeem;Syed Ismail Shah;Jamil Ahmad
Affiliations:
Center for Advanced Studies in Engineering, Islamabad, Pakistan;Center for Advanced Studies in Engineering, Islamabad, Pakistan;Simon Fraser University, School of Engineering Science, Canada;Iqra University, Islamabad, Pakistann;Iqra University, Islamabad, Pakistann
Venue:
ICIC'07 Proceedings of the intelligent computing 3rd international conference on Advanced intelligent computing theories and applications
Year:
2007

Citing 5
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Abstract

The Minimum Bit Error Rate (MBER) detectors outperform the conventional Minimum Mean Squared Error (MMSE) detector by minimizing the Bit Error Rate (BER) directly. In this paper an MBER multiuser detector for Orthogonal Frequency Division Multiplexing-Space Division Multiple Access (OFDM-SDMA) system is proposed employing Particle Swarm Optimization (PSO) for finding the optimum weight vectors. Simulation results show that the proposed system achieves faster convergence with lower complexity as compared to Genetic Algorithms (GA) with same Bit Error Rate (BER) performance.