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Reverse Link Performance of a DS-CDMA System With Both Fast and Slow Power Controlled Users

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2 Author(s)
Carrasco, L. ; Univ. de les Illes Balears, Palma ; Femenias, G.

In this paper the performance of the reverse link of a multicell DS-CDMA system with coexisting open-loop and closed-loop power controlled users transmitting heterogeneous traffic is analyzed. Real-time and non-real-time traffic performance expressions are obtained. The analysis includes a different channel coding scheme for each traffic type selected in accordance to their specific QoS requirements. Moreover, the study takes into account the effect of frequency-selective Nakagami-m fading with arbitrary parameters, correlated log-normal shadowing, power control imperfections and selection-based macroscopic diversity. How the power control imperfections, the number of resolvable paths, or the proportion of simultaneous open-loop and closed-loop power controlled users affect the reverse link capacity of the system is discussed in detail. Analytical results are also given for systems with different processing gains and for propagation environments with different multipath intensity profile (MIP) distributions.

Published in:

Wireless Communications, IEEE Transactions on  (Volume:7 ,  Issue: 4 )

Date of Publication:

April 2008

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