Performance Analysis of Coherent DS-CDMA in Nakagami Multipath Fading Channel
نویسندگان
چکیده
The coherent reception of Direct Sequence Code Division Multiple Access(DSCDMA) signals in a multipath fading channel is considered. The channel model assumes independent paths with Nakagami fading statistics. This model includes the Rayleigh channel as a special case and a reasonable model for a frequency selective fading channel. The bit error rate(BER) performance of a RAKE receiver under various multipath fading conditions is derived and evaluated. The results indicates that over 50 users may access the channel simultaneously under typical fading conditions.
منابع مشابه
Bit Error Performance for Asynchronous Ds Cdma Systems Over Multipath Rayleigh Fading Channels (RESEARCH NOTE)
In recent years, there has been considerable interest in the use of CDMA in mobile communications. Bit error rate is one of the most important parameters in the evaluation of CDMA systems. In this paper, we develop a technique to find an accurate approximation to the probability of bit error for asynchronous direct–sequence code division multiple–access (DS/CDMA) systems by modeling the multipl...
متن کاملError probability performance for coherent DS-CDMA systems in correlated Nakagami fading channels
This paper presents the average error probability performance in coherent DS-CDMA systems using a 2DRAKE receiver with an arbitrary number of antennas and arbitrary number of RAKE fingers. In the analysis, we assume a general frequency selective Nakagami-m fading channel with exponential Multipath Intensity Profile. Analytical expression of the average Bit-Error-Rate (BER) is derived, including...
متن کاملPERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS AT JORDAN UNIVERSITY OF SCIENCE AND TECHNOLOGY April 2000 PERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS
PERFORMANCE ANALYSIS OF DPSK/DS-CDMA SIGNALS OVER NAKAGAMI RADIO FADING CHANNELS by Ali A. Jamous Chairman: Dr. Ibrahim Ghareeb Direct sequence (DS) based code division multiple access (CDMA) with differential phase shift keying (DPSK) modulation is an active area of research and has taken on a significant role in recent cellular and personal communication systems. Two basic problems are of maj...
متن کاملPerfo:rmance of a Multicarrier DS/CDMA System with Adaptive Antenna Array in a Nakagami Fading Channel
A/M~Tw!,In this paper, a multicarrier DS/CDMA system with adaptive antenna array is proposed for a multipath fading channel. A multipath fading channel is modeled as a Nakagami-m fading channel. The performance is evaluated in terms of bit error probability, and system capacity for the multicarrier DS/CDM A system with adaptive antenna array is estimated. From the analytic and simulation result...
متن کاملJoint Closed-Loop Power Control and Base Station Assignment for DS-CDMA Receiver in Multipath Fading Channel with Adaptive Beamforming Method
In this paper, we propose smart step closed-loop power control (SSPC) algorithm and base station assignment based on minimizing the transmitter power (BSAMTP) technique in a direct sequence-code division multiple access (DS-CDMA) receiver in the presence of frequency-selective Rayleigh fading. This receiver consists of three stages. In the first stage, with conjugate gradient (CG) adaptive ...
متن کامل