Although routing is one of the key network issues, the challenges facing WSN makes the subject even more demanding. In this study, we propose a novel fault tolerant routing protocol in wireless sensor networks using fuzzy logic. We approach the problem by breaking it down into two parts. The first sub problem is designing a routing module and the second one retrofitting the designed module in a way that answering to these two sub problems leads to the final solution of the main problem. To deal with the first stage, by using fuzzy logic, we design a routing module; then for the second stage, the module enters fault tolerant routing in order that it be tolerant against routing faults. In this study, the term "network failure" is figuratively equal to "node failure".

Abstract:In the time limit network traffic, especially video traffic, Packet delay is an important issue. However, there are several limitations in wireless sensor networks their main argument is that the network lifetime. The Congestion in Wireless Sensor Networks is significantly higher and thus severely affects the network performance leading to increased data loss and end to end delay and applications that require fast response time such as emergency preparedness and hostile environment surveillance pose challenging obstacles to wireless sensor network (WSN) protocols. A routing protocol must provide fast and reliable techniques for data propagation. In this study, we intend to approach in order to reduce energy consumption with maintaining the quality of service we provide to achieve improved network lifetime.