Load balanced fuzzy control based adaptive gateway discovery in Integrated Internet MANET

Integrated Internet-MANET (IIM) architecture is a hybrid network which is an interconnection of the wired Internet and wireless MANET. This interconnection is facilitated through gateways. Some of the important issues in this integration are gateway discovery and gateway load balancing. So far, these issues have been addressed separately in the literature. The issues of gateway load balancing and gateway discovery are inherently interrelated. In this paper, the issues of gateway load balancing and gateway discovery are addressed together. The proposed mechanism uses the WLB-AODV routing protocol for gateway load balancing and treats the problem of finding efficient values to gateway discovery parameters as a control system and uses the Mamdani Architecture for Fuzzy Control. The proposed protocol has been simulated in ns-2 network simulator. Simulation results show that the proposed protocol gives better performance than the existing solution in terms of packet delivery ratio, end-to-end delay and normalized routing load.