Fuzzy Algorithms for Maximum Lifetime Routing in Wireless Sensor Networks

The authors address the maximum lifetime routing problem in Wireless Sensor Networks (WSNs) and propose two online routing algorithms based on fuzzy logic, namely fuzzy maximum lifetime algorithm and fuzzy multi-objective algorithm. The former attempts to maximize the WSN lifetime objective, whereas the latter strives to simultaneously optimize the lifetime as well as the energy consumption objectives. The distinguishing aspect of this paper is the novel use of fuzzy membership functions and rules in the design of cost functions for the routing objectives considered in this work.