Abstract
Wireless sensor networks (WSNs) are receiving more popularity in mission critical and delay sensitive industrial applications because they offer low latency and reliable message transmission. In applications like gas leakage detection, monitoring of pressure and industrial process control etc. reliable communication between sink and the sensing nodes is very important. In wireless sensor networks sensing nodes are placed very densely in different environments and mostly with no defined network topology. In industrial setup, the placement of the sensing nodes plays a very important role, most importantly it increases overall system throughput by efficiently transmitting the calibrated readings and providing maximum security to the industrial devices. In this paper we aim to investigate, how different topological settings effects packet delivery ratio (PDR) and End-to-End delay in wireless sensor networks? This paper also focuses on the performance study of three different network topological settings for mission critical applications. We evaluated the performance of wireless sensor network (WSN) by placing the sensor nodes in three different topological designs namely Linear, Tier one and Split Tier one.