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Published in:
01-03-2015
An Asynchronous Channel Hopping Sequence for Rendezvous Establishment in Self Organized Cognitive Radio Networks
Published in: Wireless Personal Communications | Issue 2/2015
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Abstract
A cognitive radio performs spectrum sensing, so that the device is able to self-organize appropriate networking functions. Rendezvous is the process by which the nodes explore the available channels to establish a link when they want to communicate with each other. Although using a dedicated control channel can be a solution to find the common control channel, it may result in a bottleneck and create a single point of failure. In this paper, we propose an asynchronous channel hopping sequences to establish a link in self organizing cognitive radio networks without the assumption of global clock synchronization. Our scheme provides successful communication rendezvous within a bounded time interval. Theoretical analysis and simulation results showed that our scheme outperforms the existing asynchronous schemes used for similar purpose in terms of many performance criteria.