Quorum-based channel allocation with asymmetric channel view in cognitive radio networks

Authors:
Sylwia Romaszko;Petri Mähönen
Affiliations:
RWTH Aachen University, Aachen, Germany;RWTH Aachen University, Aachen, Germany
Venue:
Proceedings of the 6th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
Year:
2011

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Abstract

In this paper we study a novel distributed rendezvous protocol for cognitive radio networks (CRNs), which is based on a grid quorum system, hence we call it the gQ-RDV protocol. A paper tackles with an asymmetric channel view problem rarely investigated due to its complexity. Hence, the objective of the paper is twofold. Different grid-based quorum arrangements are proposed and investigated in order to find the best approach to ensure a very high probability of nodes' rendezvous, while having a different number of available channels in the list. Second, we propose channel mapping methods based on a grid quorum and sub-grids dealing with the asymmetric channel view. Each node visits channels according to its channel map and without exchange of any information, which reduces signaling overhead.