Reverse Order Cost Selection method to overlay Coverage in Wireless Networks

Abstract

Wireless Sensor Networks (WSNs), which are two or three dimensional systems, usually consist of a large number of small sensors equipped with some processing circuit, and a wireless transceiver. In this research work, it has been observed that HA-ECMSE routing reduce only the power of radio transmission and is therefore not suitable for heavy-duty applications. However, HA-ECMSE protocols can maintain network connectivity but do not guarantee coverage-hole detection. Therefore, HA-ECMSE cannot be used for networks with variable workloads. So, an enhancement to the existing system is done by proposing a novel technique Reverse Order Cost Selection (ROCS) method to overlay the coverage-hole problem in Wireless Sensor Networks. After the initial random deployment of the sensors, the position of the sensors is found out either by the GPS. The transmission range of the sensors is used to compute the coordinates of the sensors in the proposed method. Once the position of the nodes is found out, the probable location of coverage-hole is checked at a point of Region of Interest (ROI). Then, the WSN nodes are selected according to their position like nodes are closer to coverage-hole, nodes are not closer to coverage-hole and nodes includes the coverage hole. The simulation result shows that the proposed ROCS method is better than the existing HA-ECMSE method. The ROCS method shows the 0.97 % of improvement PDR, 6.55 % of improvement forwarding counts, 8.88 % of improvement packet retransmission and 27.84 % of improvement in total energy
consumption when compared to HA-ECMSE method