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Transmission power cost of mobility in cellular networks
KTH, Superseded Departments, Signals, Sensors and Systems.
IBM, Haifa Research Laboratory.
1996 (English)Report (Other academic)
Abstract [en]

We study the transmission power control in a cellular network where users mobility results  in a time varying gain matrix. A framework for evaluating the channel quality is specified,  and an asymptotic representation of the link gain evolution in time is obtained. Then, a  variant of a standard Distributed Constrained Power Control (DCPC) which copes with  user mobility is derived. These two power controls, as well as constant­received power and  constant­transmitted power controls are compared with respect to their outage probabilities  in a Manhattan­like microcellular system. The comparison reveals that the classical DCPC  algorithm has an outage probability close to one, unless some counter­measures are taken.  The time variant algorithm however, copes well with users mobility and provides a close to  an optimal scale up factor for the Signal to Interference Ratio (SIR) target. Furthermore, the  time variant algorithm provides a substantial improvement in spectrum utilization compared  to the other algorithms above.

Place, publisher, year, edition, pages
KTH , 1996. , 29 p.
National Category
Computer and Information Science
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-28555OAI: oai:DiVA.org:kth-28555DiVA: diva2:387982
Note
QC 20110117Available from: 2011-01-16 Created: 2011-01-16 Last updated: 2011-10-10Bibliographically approved

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