Channel Access Scheduling for Fair Distribution of Channels to Secondary users in a CRN

  IJCOT-book-cover
 
International Journal of Computer & Organization Trends  (IJCOT)          
 
© 2017 by IJCOT Journal
Volume - 7 Issue - 3
Year of Publication : 2017
Authors :  S. Tamilarasan, K. Balakrishnan

Citation

S. Tamilarasan, K. Balakrishnan "Channel Access Scheduling for Fair Distribution of Channels to Secondary users in a CRN", International Journal of Computer & organization Trends (IJCOT), V7(3):21-25 May - Jun 2017, ISSN:2249-2593, www.ijcotjournal.org. Published by Seventh Sense Research Group.

Abstract

A Cognitive Radio Network (CRN) is one where Primary Network has the priority of utilizing the spectrum. The Secondary Networks are regulated to make sure that they do not interfere in the channel access when a primary is active. However, when a primary is inactive, the secondaries are allowed access to the spectrum. But there does not exist a way to coordinate between the various secondary networks that access the spectrum in an event of the absence of the primary. In this paper, we propose a Channel Access Scheduling scheme, which is a centralized approach to coordinate the access of the channels by the various Secondary Networks that are part of the CRN. The scheduling scheme is based on a Coexistence Manager (CM) that coordinates the channel access between the secondaries. The CM takes into account parameters like QOS and waiting time in the queue to decide on which secondary accesses the channel. The simulation results show that the proposal improves throughput of the system and also improves fairness in channel allocation.

References

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Keywords
Cognitive Radio Network, Channel Access Scheduling, Coexistence Manager, Throughput.