A multichannel design for QoS aware energy efficient clustering and routing in WMSN

Abstract

Wireless Multimedia Sensor Networks (WMSNs) are used in video surveillance applications for disaster management inside buildings. There is unavailability of electricity in a building during a disastrous situation. To have an energy efficient and real–time data delivery, a Quality of Service (QoS) aware energy efficient routing technique is proposed in this paper. It tries to find a route that meets the real–time data delivery deadlines by minimising the energy consumption. Also, WMSNs usually employ single channel design approach whereas at a given instant several video or image streams should be delivered. Based on the channel conditions, a game theory based distributed multichannel allocation mechanism is proposed which improves the network performance parameters in varying channel conditions. These network design mechanisms are investigated using NS–2 simulator for a test case application. It is shown that the combined approach leads to further reduction in the energy consumption by meeting the data reporting deadlines.