期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2011
卷号：2
期号：3
页码：1160-1163
出版社：TechScience Publications
摘要：In wireless sensor network, the network lifetime depends upon the battery of the sensor nodes. As the Sensor nodes are small in physical size the battery power is also limited. To conserve the energy, sensor nodes operate in sleep wake mode, when a sensor node is in idle state it is in sleep mode, due to this we can save the battery power. We are considering asynchronous network in which the sensor nodes are waking at different time. Routing to such network is difficult, delay occur in the network because each node has to wait for the next node to wake up , one of the routing algorithm is Any casting (AC) , data is delivered to the node which wake up first ,the disadvantage of AC algorithm is that the route can be long adding more delay to network. Second algorithm is maximum forward (MF), data is delivered to the node which is nearer to the sink and farther from source node, the disadvantage of MF is the source node have to wait and check each node distance which falls in its vicinity, due to this additional delay has been introduced in the network, next algorithm is based on thresholding, thresholding in terms of distance of the communication range, source node will forward the data to the node which is greater than threshold and nearer to sink due to this the source node does not have to wait each node to wake up and data is forwarded with shorter routes.
