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The performance of ad hoc routing protocols will significantly degrade when there are faulty nodes in the network. The fault tolerant routing protocol addresses this problem by exploring the network redundancy through multipath routing. In this paper, it is proposed to design a fault tolerant multi path routing protocol to reduce the packet loss due to route breakage. In this protocol, nodes determine multiple disjoint routes having more battery power and residual energy, to every active destination. In fault-tolerant mechanism, the received signal strength is measured and based on its value, it can send warning packets to the previous node. When a downstream node encounters a forwarding error, an upstream node with the same data in its buffer and alternative route can retransmit the data.
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