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

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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.
To appear in the Proceedings of the 16th IST Mobile and Wireless Communications Summit, Budapest, Hungary, July 1-5, 2007

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Computer Science and Game Theory, Information Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/133650

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0705.0936
 http://arxiv.org/abs/0705.0936

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arXiv