تکنیک زمان بندی خواب / بیداری براساس خوشه برای شبکه های حسگر بی سیم WSN

ABSTRACT Cluster based Sleep/Wakeup Scheduling Technique for WSN

Generally a Wireless sensor network (WSN) is a collection of sensor nodes interconnected by wireless communication channels. Where each sensor node is a small device that can collect data from its surrounding area, carry out simple computations, and communicate with other sensors or with the base station (BS). Because of this property the wireless sensor network has become a very important topic with the rapid development that is vulnerable to a wide range of attacks due to deployment in the hostile environment. A WSN is a large network of resource-constrained sensor nodes with multiple preset functions, such as sensing and processing with number of low-cost, resource limited sensor nodes to sense important data related to environment and to transmit it to sink node that provides gateway functionality to another network, or an access point for human interface. These sensor networks are composed of energy constrained nodes embedding limited transmission, processing and sensing capabilities. Therefore network lifecycle becomes short and hence energy-efficient technique implementation becomes an important requirement for WSN.