Designing a MAC Algorithm for Equitable Spectrum Allocation in Cognitive Radio Wireless Networks

Spectrum sharing is one of the most important stages in cognitive radio wireless networks, responsible for the opportunistic allocation of free channels to unlicensed users (SUs) to be utilized in data transmission. One of the critical issues at this stage, is related to the absence of a module capa...

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Bibliographic Details
Published in:Wireless personal communications 2018, Vol.98 (1), p.363-394
Main Authors: López, Danilo Alfonso, Rojas, Camilo Anzola, Zapata, Diego Fernando, Trujillo, Edwin Rivas
Format: Article
Language:English
Subjects:
Access control
Algorithms
Channels
Cognitive radio
Communications Engineering
Computer Communication Networks
Data transmission
Engineering
Networks
Ranking
Signal,Image and Speech Processing
Wireless networks
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Summary:Spectrum sharing is one of the most important stages in cognitive radio wireless networks, responsible for the opportunistic allocation of free channels to unlicensed users (SUs) to be utilized in data transmission. One of the critical issues at this stage, is related to the absence of a module capable of allocating the available resources fairly to all network users. In this sense, the paper develops a media access control protocol (MAC) for cognitive networks based on infrastructure called CRUD-MAC, which allows to take advantage of channel access in a more equitable and efficient way; for this purpose two algorithms we designed within the MAC standard (using ANFIS and FAHP) for the ranking or classification of SUs by score when assigned channels based on network usage historical metrics, so that nodes with better ranking have priority in the allocation. Validation of the proposals was made by comparing the performance of CRUD-MAC with ANFIS, FAHP, and a channel assignment algorithm, not including ranking. The results show that the system is more efficient from the standpoint of fair allocation of resources.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-017-4873-0