DESIGN AND EVALUATE ALGORITHM TO IMPROVE AVAILABILITY IN EMERGENCY MANETS USING ADOV PROTOCOL

Abstract

A Mobile Ad-hoc NETwork (MANET) is an autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless links. One of the main issues in such networks is performance- in a dynamically changing structure; the nodes are expected to be power-aware due to the bandwidth constrained network. Another issue in such networks is security - since every node participates in the operation of the network equally, malicious nodes are difficult to detect. There are several applications of mobile ad hoc networks such as disaster recovery operations, bATTle field communications, etc. The main objective of this paper is to investigate and propose security mechanisms for MANET communications mainly emphasizing on emergency scenarios where first responders’ devices communicate by establishing a decentralized wire-less network. We have proposed security mechanisms for innovative routing against worm-hole attack and neighbour node -to- neighbour node overlay mechanisms for emergency MANETs. Such security mechanisms guarantee confidentiality and integrity of the emergency MANET communications. We have thoroughly evaluated the performance of proposed mechanisms using a network simulator. The main objective of undertaking these evaluations was to respect the Quality-of Service of MANET communication links.