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Performance of multicode DS-CDMA systems for reverse links over Nakagami-m fading channels [cdma2000]

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3 Author(s)
Tsan-Ming Wu ; Dept. of Electr. Eng., Chung Yuan Christian Univ., Chung-li, Taiwan ; Lien-Jui Chen ; Chiung-Yuan Hu

In this paper, the performance analysis of noncoherent multicode DS-CDMA systems for reverse links of the cdma2000 radio configurations 1 and 2 over Nakagami-m frequency-selective fading channels is evaluated. The transmission system is intended to serve multi-rate multimedia applications suitable for data, voice, image, and video conveyance. A RAKE receiver structure, with square-law and equal gain combining, is used for demodulation. A statistical characterization is applied to the multiple access interferers (MAI), which can be modeled as a Gaussian distribution, and thereby, the exact bit error rate (BER) of the system with uncorrelated diversity branches over Nakagami-m channels may be derived. Numerical results over the Nakagami-m channel, which gives severe, moderate, light, and no fading environments, via adjusting its fading figure, are also provided in terms of different data rates and number of users.

Published in:

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th  (Volume:7 )

Date of Conference:

26-29 Sept. 2004