TY - GEN
T1 - On the ergodic capacity of legacy systems in the presence of next generation interference
AU - Mahmood, Nurul H.
AU - Yilmaz, Ferkan
AU - Alouini, Mohamed Slim
AU - Øien, Geir E.
PY - 2011
Y1 - 2011
N2 - Next generation wireless systems facilitating better utilization of the scarce radio spectrum have emerged as a response to inefficient rigid spectrum assignment policies. These are comprised of intelligent radio nodes that opportunistically operate in the radio spectrum of existing legacy systems; yet unwanted interference at the legacy receivers is unavoidable. In order to design efficient next generation systems and to minimize their harmful consequences, it is necessary to realize their impact on the performance of legacy systems. In this work, a generalized framework for the ergodic capacity analysis of such legacy systems in the presence of interference from next generation systems is presented. The analysis is built around a model developed for the statistical representation of the interference at the legacy receivers, which is then used to evaluate the ergodic capacity of the legacy system. Moreover, this analysis is not limited to the context of legacy systems, and is in fact applicaple to any interference limited system. Findings of analytical performance analyses are confirmed through selected computer-based Monte-Carlo simulations.
AB - Next generation wireless systems facilitating better utilization of the scarce radio spectrum have emerged as a response to inefficient rigid spectrum assignment policies. These are comprised of intelligent radio nodes that opportunistically operate in the radio spectrum of existing legacy systems; yet unwanted interference at the legacy receivers is unavoidable. In order to design efficient next generation systems and to minimize their harmful consequences, it is necessary to realize their impact on the performance of legacy systems. In this work, a generalized framework for the ergodic capacity analysis of such legacy systems in the presence of interference from next generation systems is presented. The analysis is built around a model developed for the statistical representation of the interference at the legacy receivers, which is then used to evaluate the ergodic capacity of the legacy system. Moreover, this analysis is not limited to the context of legacy systems, and is in fact applicaple to any interference limited system. Findings of analytical performance analyses are confirmed through selected computer-based Monte-Carlo simulations.
KW - cognitive radio network
KW - ergodic capacity
KW - interference limited system
KW - Next generation networks
UR - http://www.scopus.com/inward/record.url?scp=84857469201&partnerID=8YFLogxK
U2 - 10.1109/ISWCS.2011.6125402
DO - 10.1109/ISWCS.2011.6125402
M3 - Conference contribution
AN - SCOPUS:84857469201
SN - 9781612844022
T3 - Proceedings of the International Symposium on Wireless Communication Systems
SP - 462
EP - 466
BT - ISWCS'11 - 2011 8th International Symposium on Wireless Communication Systems, Proceedings
T2 - 2011 8th International Symposium on Wireless Communication Systems, ISWCS'11
Y2 - 6 November 2011 through 9 November 2011
ER -