Link stability based geocasting model for underwater sensor networks

This paper presents a Geocast technique for underwater sensor networks. The model named as Routing and Multicast Tree based Geocasting (RMTG) [1] has been designed for underwater sensor networks. In our previous work [1] we proposed a theoretical model for underwater geocasting that uses greedy forwarding and previous hop handshaking to route the packets towards the geocast region and further disseminates the data within the geocast region by creating a multicast shortest path tree. In this paper we present the modified RMTG algorithm and incorporate the various link broken scenarios along with their solutions. This model provides an efficient distribution of data in the geocast region in terms of node mobility handling, lesser memory utilization, lesser calculations and a better end to end latency. In addition to this the presented model does not use the flooding technique to deliver the packets inside the geocast region that is used in most of the geocasting techniques.

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