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ANALYSIS OF DYNAMIC NODE REPLACEMENT BY RE-LINKING FOR ENHANCING ROUTE PERFORMANCE IN PRE-EMPTIVE MAINTENANCE IN WIRELESS SENSOR NETWORKS
Shilpa. M. Lambor #1, Sangeeta. M. Joshi *2

Published in: Journal for Advance Research in Applied Sciences
Volume- 4, Issue-1, pp.508-515, Jun 2017
DPI :-> 16.10089.JARAS.2017.V4I1.508515.1762



Abstract
In this paper we mathematically analyze the dynamic node replacement process by re-linking in pre-emptive route maintenance whereby a soon-to-die energy deficient node is replaced with an energy abundant neighbour node, in the route to the destination. The route from the source to the destination is modelled as a Continuous Time Markov Chain (CTMC). The dynamic node replacement process by re-linking modifies the system behaviour and results in a modified Markov chain that exhibits a lower energy cost as compared to the prevailing route CTMC. The performance comparison of local route repair and global route repair is carried out. The effect of repeated local re-linking’s on route energy consumption, packet delivery ratio and latency in the route is demonstrated. Numerical analysis highlights the limitations on the number of re-linking in a single route, before a new route from the source to the destination is established.

Key-Words / Index Term
Node replacement, re-linking, Markov chain, energy cost, packet delivery ratio

How to cite this article
Shilpa. M. Lambor #1, Sangeeta. M. Joshi *2 , “ANALYSIS OF DYNAMIC NODE REPLACEMENT BY RE-LINKING FOR ENHANCING ROUTE PERFORMANCE IN PRE-EMPTIVE MAINTENANCE IN WIRELESS SENSOR NETWORKS ”, Journal for Advance Research in Applied Sciences, 4, Issue-1, pp.508-515, Jun 2017. DPI:16.10089.JARAS.V4.I1.1762