M.Chandrasekaran, P.K.Sasikumar
In some of these applications, such as search and rescue and battlefield reconnaissance, a set of mobile nodes is deployed in order to collectively survey an area of interest and / or perform specific surveillance tasks. Such collaboration among the sensors requires inter-node interaction and thus maintaining network connectivity is critical to the effectiveness of WSNs. In WSAN sensors probe their surrounding and put forward their data to actor’s node. Since actors have to coordinate their operation, it must to maintain a strongly connected network topology at every times our proposal overcomes these shortcomings and presents an improved Least-Disruptive topology Repair (LeDiR) algorithm. Improved LeDiR is a localized and distributed algorithm that leverages existing route discovery activities in the network and imposes no additional pre-failure communication overhead. The SRT table is used for identifying the block’s size. The SRT table is furnished with Depth First Search (DFS) algorithm, in proposed system node priority assigning and size of block will find and recover multiple node failure.
Fault Tolerance, Wireless sensor actor Network, Network Recovery, Topology Management, Assign node priority, Actor coordination.