A Study On Light Weight Plgp

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IV. PROPOSED SYSTEM The proposed work provides solution for the two problems in the existing method. In the proposed work, light weight PLGP [3] based method, mainly focused on avoiding vampire attacks in the discovery phase of PLGP by checking signal strength of the nodes which transmit the group joining messages. A vampire would send high energy signal so as to suppress the group joining messages of other node. So avoid a node which sends at high signal strength. Function modification of discovery phase (node) defines this concept. Another focus is to reduce overhead of PLGPa [1] by using single encryption instead of chain of encryption. Proposed method concept In this novel technique the attestation method is as shown below: 1. Encrypt…show more content…
443 In the 3rd step it will verify – If not source(i.e. other than 0.0.0.0) OR – If ‘a’ is null & not neighbor ‘s’ OR – If not verified ‘a’ THEN return(/*drop*/) – Current node will be then previous one (0.0.0.1 is previous and current will be 0.0.1.0) If not neighbor OR not progressing, THEN return(/*drop*/) Closest next node of ‘s’ is assigned to ‘c’ (if ‘all is well’ then c=0.0.0.1 ) Old ‘p’ is appended key & assigned to ‘P’ (‘p’ is appended with c’s key) Forward (P, c) if they are neighbor (‘P’ is forwarded to neighbor ‘c’) Otherwise forward(P, c) to next hop which is non neighbor} Fig. Snapshots of PROPOSED SYSTEM VI.RESULT AND COMPARATIVE ANALYSIS Vampire attacks possess a serious threat to security of wireless sensor network. The proposed work has been compared based on various parameters. The various parameters used are energy consumption, average throughput, average delay etc. Every node is having own energy at initial stage. Energy consumed by the nodes while forwarding

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