MANET

Abstract

MANETs (Mobile Ad-Hoc Networks) are an infrastructure-less network where attackers can easily attack on the network from any side. Amongst innumerable attacks is ‘Sybil attack' that causes severe hazard to the network. It is an attack which uses one/many identities at a time. The identities used by Sybil attackers are either created by it or uses someone else's identity. This attack can decrease the trust of any legitimate node by using identity of that node and accumulate the secret or important data. Sybil attackers distribute secret data in other networks and it reduces the secrecy of network. This research work implements Enhanced lightweight Sybil attack detection technique that is used to detect Sybil attack in MATLAB. The concern is to improve the security of the network by removing the Sybil nodes from the network. The work has been carried out using four parameters namely - Speed, Energy, frequency and latency. During the research work, experiments were carried out to observe the trend of SNR with BER; Throughput with SNR and Throughput with BER.