BibTeX:

@article{IJIRSTV2I4016,
     title={A Survey on localization in Wireless Sensor Network by Angle of Arrival},
     author={Shubhra Shubhankari Dash and Tanmay Kumar Behera},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={4},
     pages={115--122},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I4016.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Wireless sensor network is a type of sensor network which consist of a large number of sensor nodes, which are low cost small in size. When sensor nodes send the data to the user it must be localized itself. Here basically we focus on cooperative and distributed localization. Here we use cooperative positioning algorithm which is a hybrid positioning method used for the improvement of coverage network positioning and accuracy which is based on ultra-wide band technique, normally in harsh environment. In cooperative localization nodes are work together to make measurements and after that it form a map of network. There is a method for selection of neighbors for the distributed localization. Basically distributed algorithms are simple, have asynchronous operations that are there is no global coordination between nodes is required, and have the capability to operate in a disconnected network. Here also describe a Distributed algorithm in which whole network can be divided into cluster, after the initial cluster localized, by stitching together into other cluster whole network can be localized. The graph rigidity theory is define here for the new structure and their relationship. So the algorithm can provide relative location to maximum number of nodes. A hybrid scheme of AOA/TOA explained here. This hybrid scheme employ in multiple seeds in the line of sight scenario. Here we have to find the position of target sensor which not changes its moving direction.

WSN, cooperative localization, AOA/TOA hybrid scheme, Distributed localization