BibTeX:

@article{IJIRSTV2I2006,
     title={An Efficient Approach towards Recovery from Node Failure in Wireless Sensor Network},
     author={Anil Ahir and Hira Rakhunde},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={2},
     pages={3--5},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I2006.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Wireless Sensor Networks often serve mission-critical applications in inhospitable environments such as battlefield and territorial borders. Wireless sensor and actor networks are the collection of heterogeneous elements linked by wireless medium to perform distributed sensing and acting tasks. The Actor nodes may fail for many reasons such as due of battery exhaustion, message overhead, hardware failure due to hash environment and these failures may convert the connected network into several disjoint networks that reduce the capability of network. Wireless sensor networks consist of widely distributed sensor nodes. These nodes have short energy because of its limited battery size. This low energy in turn decreases the life duration of network. The declined lifespan of network perhaps distress the application to run in-efficiently. For these reasons, many algorithms and protocols designed for wireless sensor networks which considered the energy consumption in their conception. The node failure becomes more critical when data aggregation is performed along routing paths as the data packets with aggregated data contain information from various sources and whenever one of these packets is lost a considerable amount of information will also be lost. To understand this challenges a comparative study need to done on various algorithm proposed over it.

Wireless Sensor Networks, Route Repair Mechanism, ACK