Convergence of Bidirectional PON with Single-Sink Wireless Sensor Network Using Queue Theory

Abstract

Nowadays, wireless sensor networks (WSNs) have deployed for variety of applications, such as health monitoring, military, civil, environmental monitoring, video surveillance. The limited energy of sensor nodes restricts the broadcasting range. As limited energy restricts the transmission link of such network, the need to backhaul the sensed data arises to receive sensed data at distant location. Passive Optical Network (PON), a next-generation access technology, comes up as an appropriate contender to converge the WSNs to the core system. In this paper, the investigations are reported for convergence of single-OLT PON and single-sink WSN model incorporating M/M/1 queue theory. Further, the converged WSN–PON structure extended to bidirectional link, evaluated analytically and through computer simulation in terms of queue length, end-to-end delay, packet generation rate and time cycle. The outcomes reveal the achievability of converged network, the resource allocation, and resource utilization.