pso-algorithm -assisted multiuser detection for multiuser and inter-symnol interference suppression in CDMA communications

سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 581

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تاریخ نمایه سازی: 21 فروردین 1393

چکیده مقاله:

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.

کلیدواژه ها:

Code Division Multiple Access ، Particle Swarm Optimization Algorithm ، Multiple Access Interference ، Inter-Symbol Interference ، Multiuser Detection


Atefeh Haji Jamali Arani

Electrical and Computer Engineering Department,Tarbiat Modares University, Tehran, Iran

Paeiz Azmi

Electrical and Computer Engineering Department, Tarbiat Modares University, Tehran, Iran