Spectrum Load Balancing for Medium Access in Cognitive Radio Systems

In this work, the problem of spectrum allocation in cognitive radios is shown to be similar to the load balancing problem in distributed computer systems. Spectrum load balancing (SLB) algorithm based on the non-cooperative load balancing problem in computers is proposed, and is applied to a cogniti...

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Veröffentlicht in:	IEEE communications letters 2008-05, Vol.12 (5), p.353-355
Hauptverfasser:	Chronopoulos, A.T., Musku, M.R., Penmatsa, S., Popescu, D.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Allocations Applied sciences Cognitive radio Computational modeling Computer simulation Distributed computing Exact sciences and technology Frequency Game theory Interference Laser sintering Load balancing Load balancing (computing) Load management Mathematical models Nash equilibrium Operation, maintenance, reliability Organization, operation and development plans Radio Radiocommunication specific techniques Radiocommunications Smoothing Smoothing methods Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	In this work, the problem of spectrum allocation in cognitive radios is shown to be similar to the load balancing problem in distributed computer systems. Spectrum load balancing (SLB) algorithm based on the non-cooperative load balancing problem in computers is proposed, and is applied to a cognitive radio system. The capability of SLB to support QoS in the presence of other competing cognitive networks is evaluated via simulations and compared with the existing spectrum load smoothing (SLS) algorithm. SLB is more efficient than SLS and it provides a Nash equilibrium.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2008.071968