DS/CDMA M-ary orthogonal signalling in a shadowed Rayleigh channel for mobile communications

Authors:
Panagiotis I. Dallas;Fotini-Niovi Pavlidou
Affiliations:
Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki, P.O. Box 1641, 54006 Thessaloniki, Greece;Telecommunications Division, Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki, P.O. Box 1641, 54006 Thessaloniki, Greece
Venue:
Wireless Networks - Special issue on performance evaluation methods for wireless networks
Year:
1996

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Abstract

In this paper a modified RAKE receiver is studied for a frequency selective mobile radio channel. The reverse link (mobile to base station) is analysed, assuming lognormal shadowing and Rayleigh fading and K asynchronous users, with M orthogonal sequences per user. The analysis is based on the consideration of the quadrature components of the signal and noise, taking advantage of the multipath effects. The performance evaluation is carried out in terms of both the bit error rate and outage probability in order to qualify completely the proposed receiver. The positive results assure the possibility of applying this system in a microcellular mobile radio environment.