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Further Reading:
Chung-Ju
Chang and Fang-Ching Ren, "Downlink Power Control in DS/CDMA
Cellular Mobile Radio Network", Proceedings of ICUPC'94, San
Diego (CA), 1994.
Loutfi
Nuaymi, Philippe Godlewski and Xavier Lagrange, "Power
Allocation and Control for the Downlink in Cellular CDMA Ntworks",
Proceedings of PIMRC'01, San Diego (CA), 2001.
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This paper was submitted to Dr. Predrag
Spasojevic of Rutgers, The State University of New Jersey, as partial fulfillment of course
requirement in Communication Theory (ECE 545) on April 30, 2003.
Abstract
Three downlink power control algorithms have been
studies and evaluated in this work. Additionally, an uplink power control
algorithm has been modified and adapted for downlink. An enhancement has been
proposed to one of the studied algorithms based on the concept of hysteresis to
mitigate oscillations observed at low outage probabilities in the existing
algorithms. It has been shown that the behavior of outage with number of
iterations in the modified algorithm converges as rapidly as the original
algorithm; however the oscillations at low outage percentages have been
mitigated using this enhancement.
The
complete text of the Term Paper may be accessed here (23 pages, 143 KB).
(Requires Adobe Reader)
An updated version of this paper was
presented at the IEEE Sarnoff Student Symposium 2004:
Soumya Das,
Sachin Ganu,
Natalia Rivera,
Ritabrata Roy, "Performance
Analysis of Downlink Power Control in CDMA Systems", Proceedings
of IEEE Sarnoff Symposium, April 2004.
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