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Fast Power Control in Cellular Networks Based on Short-Term Correlation of Rayleigh Fading
IBM, Haifa Research Laboratory.
1997 (English)Conference paper (Refereed)
Abstract [en]

The fast transmission power control problem in a cellular network is studied when the sig­  nal attenuation is subject to a fast time­varying multipath Rayleigh fading. An asymptotic  representation of the link gain evolution in time is first derived, and then used for construct­  ing a Fast Time Variant distributed constrained Power Control (FTVPC). The proposed  FTVPC power control successfully counteracts Rayleigh fading and demonstrates significant  lower outage probabilities in comparison with the Constant­Received Power control (CRP).  It is shown that a potential improvement of 4=3 in the spectrum utilization can be obtained  by FTVPC compared to CRP. A comparison with a network without Rayleigh fading under  a previously studied Time Variant Power Control (TVPC), is also made. Not surprisingly,  it turned out that Rayleigh fading is very difficult to counteract, and it adds a substantial  amount of outages.

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Computer and Information Science
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URN: urn:nbn:se:kth:diva-28170OAI: diva2:384212
Sixth WINLAB Workshop on Third Generation Wireless Information Network
QC 20110114Available from: 2011-01-07 Created: 2011-01-07 Last updated: 2011-01-14Bibliographically approved

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