Transmission power cost of mobility in cellular networks
1996 (English)Report (Other academic)
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 constantÂreceived power and constantÂtransmitted power controls are compared with respect to their outage probabilities in a ManhattanÂlike microcellular system. The comparison reveals that the classical DCPC algorithm has an outage probability close to one, unless some counterÂmeasures 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.
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-28555OAI: oai:DiVA.org:kth-28555DiVA: diva2:387982
QC 201101172011-01-162011-01-162011-10-10Bibliographically approved