Research Article
An Efficient Power Control Algorithm for Supporting Cognitive Communications in Shared Spectrum Areas
@INPROCEEDINGS{10.1007/978-3-642-16644-0_43, author={Mahdi Pirmoradian and Christos Politis and Emmanouil Panaousis}, title={An Efficient Power Control Algorithm for Supporting Cognitive Communications in Shared Spectrum Areas}, proceedings={Mobile Lightweight Wireless Systems. Second International ICST Conference, MOBILIGHT 2010, Barcelona, Spain, May 10-12, 2010, Revised Selected Papers}, proceedings_a={MOBILIGHT}, year={2012}, month={10}, keywords={Power Control Primary Users License-exempt Shared spectrum}, doi={10.1007/978-3-642-16644-0_43} }- Mahdi Pirmoradian
Christos Politis
Emmanouil Panaousis
Year: 2012
An Efficient Power Control Algorithm for Supporting Cognitive Communications in Shared Spectrum Areas
MOBILIGHT
Springer
DOI: 10.1007/978-3-642-16644-0_43
Abstract
The concept of is meant to be utilised by both licensed and license-exempt users that coexist in a shared spectrum area whenever they need to avoid causing unaffordable interference to each other by following some rules. In fact, primary users should be protected by any license-exempt transmission. To this end, power control is a pivotal mechanism to be used for interference management in these scenarios. Especially, transmit power control is a vehicle to mitigate interference, in presence of CR technology, when primary receivers are attempting to reach a desired (SINR) level. In this work we assume that a CR network relies on the same spectrum area with a primary network. Our scope is to measure the introduced interference level caused by the CR transmitter and to properly modify its power to allow a legacy user to reach a required SINR according to location of the primary user in presence of interference. A series of results are presented to prove the efficiency of our proposed scheme.