Modelling and analysis of convergence of wireless sensor network and passive optical network using queueing theory

Authors:
Zhenfei Wang;Kun Yang;David K. Hunter
Affiliations:
School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK;School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK;School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK
Venue:
WIMOB '11 Proceedings of the 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications
Year:
2011

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Abstract

Wireless sensor networks (WSNs) are being deployed for an ever-widening range of applications, particularly due to their low power consumption and reliability. In most applications, the sensor data must be sent over the Internet or core network, which results in the WSN backhaul problem. Passive optical networks (PONs), a next-generation access network technology, are well suited form a backhaul which interfaces WSNs to the core network. In this paper a new structure is proposed which converges WSNs and PONs. It is modelled and analyzed through queuing theory by employing two M/M/1 queues in tandem. Numerical results show how the WSN and PON dimensions affect the average queue length, thus serving as a guideline for future resource allocation and scheduling of such a converged network.