SSP'05 -- Proceedings

	IEEE/SP 13th workshop on Statistical Signal Processing July, 17-20, 2005 - Bordeaux - France

Information regarding the paper

Title

The use of Probability Control for CDMA System Optimization

Author(s)

Itsik Bergel	Tel Aviv University
Hagit Messer-Yaron	Tel Aviv University

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Abstract

CDMA systems commonly use power control mechanism to reduce the amount of interference between the users. We challenge this common practice by considering non-continuous transmission and probability control mechanism. We analyze the effect of the transmission probability on the average signal-to-noise plus interference ratio (SIR), and give a sufficient condition for CDMA systems in which probability control (and not power control) is the optimal method for balancing users' interference. We also demonstrate this condition on a CDMA system with a single RAKE finger. Results are applicable both for CDMA and for impulse radio (IR) systems.