Indu Saju, Nishanth Krishnan
The performance of mobile ad hoc network can be highly improved if the routing protocol can be made adaptive to the current network conditions. Studies show that the limitation of conventional routing protocols is the inability to respond immediately to the changes in traffic and mobility conditions. Mobile nodes capable of switching instantaneously between proactive routing mode and reactive routing mode based on current status of the node can overcome the above limitation. A fuzzy based route mode selection approach with information from multiple layers can impart instantaneous switching capability to the mobile nodes. This selection technique utilizes the information regarding the number of link breaks, the interface queue length and the application type (Delay tolerant or Delay sensitive) of each node. Hence a fuzzy based protocol with cross layer information could improve the performance of MANETs. This paper highlights a comparative study of conventional, modified and fuzzy based routing protocol and proposes the benefit of using fuzzy logic in routing protocol.
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