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Wireless Networks
Erschienen in: Wireless Networks 7/2015

01.10.2015

Delay-bandwidth product approach for unequal-width load balancing spectrum decisions in cognitive radio networks

verfasst von: Samer T. Talat, Li-Chun Wang

Erschienen in: Wireless Networks | Ausgabe 7/2015

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Abstract

A cognitive radio (CR) system scans a wide spectrum to find available channels. One of the key challenges in using these temporarily available spectrums is that bandwidths of the available spectrums are not equal. In addition, the issue of competition for a single channel by many secondary users must be resolved. This paper develops a load balancing spectrum decision scheme for CR networks with unequal-bandwidth, using the concept of the delay bandwidth (DB) product to select suitable unequal-width channels. Compared with other existing unequal bandwidth spectrum decision schemes, the proposed DB-based spectrum decision can improve the overall system throughput by up to 40 % in our simulation results.
Nächster Artikel SymCo: Symbiotic Coexistence of Single-hop and Multi-hop Transmissions in Next-generation Wireless Mesh Networks

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Metadaten
Titel
Delay-bandwidth product approach for unequal-width load balancing spectrum decisions in cognitive radio networks
verfasst von
Samer T. Talat
Li-Chun Wang
Publikationsdatum
01.10.2015
Verlag
Springer US
Erschienen in
Wireless Networks / Ausgabe 7/2015
Print ISSN: 1022-0038
Elektronische ISSN: 1572-8196
DOI
https://doi.org/10.1007/s11276-015-0895-2

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