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arXiv · 0705.0936

Performance Comparison of Energy-Efficient Power Control for CDMA and Multiuser UWB Networks

Giacomo Bacci·Marco Luise·H. Vincent Poor
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Abstract

This paper studies the performance of a wireless data network using energy-efficient power control techniques when different multiple access schemes, namely direct-sequence code division multiple access (DS-CDMA) and impulse-radio ultrawideband (IR-UWB), are considered. Due to the large bandwidth of the system, the multipath channel is assumed to be frequency-selective. By making use of noncooperative game-theoretic models and large-system analysis tools, explicit expressions for the achieved utilities at the Nash equilibrium are derived in terms of the network parameters. A measure of the loss of DS-CDMA with respect to IR-UWB is proposed, which proves substantial equivalence between the two schemes. Simulation results are provided to validate the analysis.

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Giacomo Bacci, Marco Luise, H. Vincent Poor. 2007-05-07. Performance Comparison of Energy-Efficient Power Control for CDMA and Multiuser UWB Networks. https://arxiv.org/abs/0705.0936

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