CONTROLLED DUTY CYCLE (CDC) SCHEME FOR ENERGY EFFICIENT ROUTING PERFORMANCE IN WIRELESS SENSOR NETWORK

摘要

Wireless Sensor Network (WSN) has limited resources such as battery and computational power. Many applications of WSN contain sensor nodes which are remotely located. Hence energy for such applications should be efficiently utilized. This imposes a major attention for energy conservation in WSN. In existing duty-cycled schemes, the nodes switch between active and dormant states independently; this may affect the performance of the network. In order to overcome this issue, Controlled Duty Cycle (CDC) scheme has been proposed for energy efficient routing in WSN. In CDC scheme switching between active and dormant states is controlled by downstream nodes. Initially each source node finds shortest path to the destination and awakes each node on defined path while sending data. CDC scheme finds alternative path to the destination if congestion occurs. Thus proposed controlled duty cycle scheme will enhance network lifetime and other Quality of Service (QoS) parameters of WSN. Following invention is described in detail with the help of Figure 1 of sheet 1 showing the controlled duty cycle scheme for energy efficient routing.