Rendezvous is an initial and vital process for establishing data communications between devices in cognitive radio networks. Channel hopping (CH) provides an effective method for achieving rendezvous without relying on a dedicated common control channel. Most of the existing rendezvous schemes are designed for single-radio devices. Due to the dropping cost of wireless transceivers, the use of multiple radios to significantly reduce the rendezvous delay becomes economically feasible. In this paper, we propose a deterministic multi-radio rendezvous scheme that exploits the combinatorial features of grid quorum systems. We refer to our proposed scheme as multi-grid-quorum channel hopping (MGQ-CH). Our scheme uses multiple overlapped grid quorums to map the available channels at each device to its radios. We derive the theoretical upper-bound of the maximum time-to-rendezvous of MGQ-CH. Furthermore, we conduct simulations to study the performance of MGQ-CH under various system parameters and compare it with the state-of-the-art multi-radio rendezvous algorithms. The simulation results demonstrate the superior performance of MGQ-CH compared to previous schemes.
CITATION STYLE
Al-Mqdashi, A. M., Sali, A., Noordin, N. K., Hashim, S. J., Nordin, R., & Abdel-Rahman, M. J. (2017). An efficient quorum-based rendezvous scheme for multi-radio cognitive radio networks. In 2016 IEEE 3rd International Symposium on Telecommunication Technologies, ISTT 2016 (pp. 59–64). Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/ISTT.2016.7918085
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