BibTeX:

@article{IJIRSTV2I2060,
     title={Vigilant Cluster Head Based Routing in Sleep Wake Scheduling and Opportunistic Routing},
     author={Parvathy G and Silja Varghese},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={2},
     pages={190--195},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I2060.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Wireless sensor network is composed of sensor nodes and multiple sink in which each sensor node is capable of detecting events. The main problem arise in the network is it remains unattended for long duration because these networks are placed in remote areas. So to extend the network lifetime of a network, node energy must be efficiently used. So in order to efficiently use energy of the network sleep wake scheduling method is used. Asynchronous sleep wake scheduling arrange sensor node to sleep mode when transmission or reception is not required. It allows sensor nodes wake up independently with the given rate. But it has got a disadvantage that additional delay may occur in each node along the path to sink node. So to minimize this problem opportunistic routing is used. In this method it selects some nodes as forwarding nodes and through these nodes it sends the packet. In the above methods it has got some limitations that sink node has to wait for long time to receive the transmitted signal. So clustering method is used. clustering enables efficient resource allocation and thus help in better designing of power control and other advantage is due to the fact that any changes of nodes behavior within a cluster affect only that cluster but not the entire network, which will therefore be robust to these changes. The main objective of this project is to reduce the energy consumption and to increase the packet delivery ratio (ie, ratio between received packet by destination and generated packet by source)

Wireless Network, Opportunistic Routing, Sleep Wake Scheduling, Forwarding Set, Network Lifetime