NDLI: Performance analysis and optimisation of a space-time selective PIC in CDMA wireless communication system

Content Provider	IEEE Xplore Digital Library
Author	Del Re, E. Fantacci, R. Marabissi, D. Morosi, S.
Copyright Year	2000
Description	Author affiliation: Dipt. di Elettronica e Telecomunicazioni, Univ. degli Studi di Firenze, Italy (Del Re, E.)
Abstract	This paper deals with a parallel interference cancellation (PIC) detector for DS-CDMA wireless communication systems with adaptive antenna arrays. The proposed detector's main feature lies in the utilization of PIC techniques for the adaptive antenna arrays receiver since optimum beamforming and one-shot interference cancellation are supposed to be used together. The proposed receiver is utilised at the end of up-link wireless DS/CDMA communication system in which BPSK modulation scheme is used in transmission so that asynchronous users and multipath fading phenomena are introduced. The proposed receiver basic assumption is to divide signals in reliable and unreliable ones after space-time combining. The reliable signals are directly detected and cancelled from each signal received by each sensor; afterwards processed signals are once again combined and detected in order to improve decision on unreliable signals. A suitable analytical approach is proposed in order to evaluate the error probability (P/sub e/) and optimum threshold value of the receiver under consideration. Simulation results are also presented to validate obtained analytical predictions. It is shown here that proposed receiver shows a very good performance and, thanks to inherent low complexity of cancelling techniques, allows real-time operation. The performance is expressed in terms of the bit error rate (BER), which has been derived by simulations under the assumption of a frequency-selective Rayleigh fading channel.
Starting Page	444
Ending Page	448
File Size	405720
Page Count	5
File Format	PDF
ISBN	0780365607
DOI	10.1109/ISSSTA.2000.876473
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Adaptive arrays Signal processing Interference cancellation Multiaccess communication Antenna arrays Sensor arrays Fading Bit error rate Detectors
Content Type	Text
Resource Type	Article

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