Fuzzy Logic QoS Dynamic Source Routing for Mobile Ad Hoc Networks
ZHANGXu, CHENGSheng, FENGMei-yu, DINGWei · 中国邮电高校学报：英文版 · 2004
Considering the characters of dynamic topology and the imprecise state information in mobile ad hoc network,we propose a Fuzzy Logic QoS Dynamic Source Routing (FLQDSR) algorithm based on Dynamic Source Routing (DSR) protocol while adopting fuzzy logic to select the appropriate QoS routing in multiple paths which are searched in parallel. This scheme considers not only the bandwidth and end-to-end delay of routing, but also the cost of the path. On the otherh and the merit of using fuzzy logic is that it can be implemented by hardware. This makes the realization of the scheme easier and faster. However our algorithm is based on DSR, the maximal hop count should be less than 10, i.e., the scale of mobile ad hoc network should not be very large. Simulation results show that.FLQDSR can tolerate a high degree of information imprecision by adding the fuzzy logic module which integrates the QoS requirements of application and the routing QoS parameters to determine the most qualified one in every node.