Performance Comparison of Energy-Efficient Power Control for CDMA and Multiuser UWB Networks
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.
Cite
@article{arxiv.0705.0936,
title = {Performance Comparison of Energy-Efficient Power Control for CDMA and Multiuser UWB Networks},
author = {Giacomo Bacci and Marco Luise and H. Vincent Poor},
journal= {arXiv preprint arXiv:0705.0936},
year = {2007}
}
Comments
To appear in the Proceedings of the 16th IST Mobile and Wireless Communications Summit, Budapest, Hungary, July 1-5, 2007