TY - JOUR TI - PSO-Algorithm-Assisted Multiuser Detection for Multiuser and Inter-symbol Interference Suppression in CDMA Communications JO - Journal of Information Systems and Telecommunication (JIST) JA - Iranian Academic Center for Education,Culture and Research LA - en SN - 2322-1437 AU - Atefeh Haji Jamali Arani AU - paeez azmi AD - Tarbiat Modares AD - Y1 - 2014 PY - 2014 VL _ 5 IS - 1 SP - 1 EP - 10 KW - Code Division Multiple Access KW - Particle Swarm Optimization Algorithm KW - Multiple Access Interference KW - Inter-Symbol Interference KW - Multiuser Detection DO - 10.7508/jist.2014.01.006 N2 - Applying particle swarm optimization (PSO) algorithm has become a widespread heuristic technique in many fields of engineering. In this paper, we apply PSO algorithm in additive white Gaussian noise (AWGN) and multipath fading channels. In the proposed method, PSO algorithm was applied to solve joint multiuser and inter-symbol interference (ISI) suppression problems in the code-division multiple-access (CDMA) systems over multipath Rayleigh fading channel and consequently, to reduce the computational complexity. At the first stage, to initialize the POS algorithm, conventional detector (CD) was employed. Then, time-varying acceleration coefficients (TVAC) were used in the PSO algorithm. The simulation results indicated that the performance of PSO-based multiuser detection (MUD) with TVAC is promising and it is outperforming the CD. UR - http://rimag.ir/fa/Article/14843 L1 - http://rimag.ir/fa/Article/Download/14843 TY -JOURId - 14843