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Decentralized spectrum selection algorithm to consider hardware constraints in Cognitive Radio Ad-Hoc Networks

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5 Author(s)
Bosung Kim ; Grad. Sch. of Inf. & Commun., Ajou Univ., Suwon, South Korea ; Nguyen Manh Tuan ; Byeong-Hee Roh ; Dae-Young Kim
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The Cognitive Radio (CR) is considered as a solution to increase in wireless devices and traffic in existing networks where inefficient spectrum utilization occurs. Common Control Channel (CCC) of CR helps unlicensed devices to make a decision for availability of spectrum resources in CR Ad Hoc Networks (CRAHNs). Actually, it is not easy to adopt CCC to the network in which supports applications such as military units penetrating deep in unknown and/or hostile territories, wireless networks established for particular social events, or sensor networks deployed for specific tasks. Therefore, various kinds of decentralized MAC protocols are developed recently to consider hardware constraints. However, these protocols also have limitations that they did not consider various operation environments and parameters to enhance the performance. In this paper, we propose a memoryless access based spectrum selection algorithm to overcome the hardware constraints and enhance the spectrum utilization. To evaluate the network performance, simulations are conducted in terms of throughput.

Published in:

Advanced Communication Technology (ICACT), 2013 15th International Conference on

Date of Conference:

27-30 Jan. 2013