Abstract
In present energy efficient protocols for mobile ad hoc networks, once the route is selected in the route discovery phase, the selected route is used until all the data packets are sent out or until the selected route fails due to the exhaustion of node battery energy. Due to the continuous flow of the packets through a selected route, and if a node in that route having less battery energy, then that node will certainly die out causing route failure and this may also cause failure of other routes which are connected to it. The problem being the energy level at this node is consumed and hence may lead to failure. To reduce this problem, a mechanism of periodic route discovery is introduced. In this mechanism, the route discovery process is reinitialized periodically to increase the network lifetime. It is observed from our simulation results that the proposed mechanism named “PRD based - MMBCR” performs better than the existing energy efficient protocols.
Highlights
Issues related to saving energy can be found on each protocol layer in ad hoc networks
The main objective of this paper is to investigate the performance of the energy efficient routing protocols for mobile ad hoc networks
The first is Min-Max Battery Cost Routing (MMBCR)-route reply, where the cost functions are calculated in route reply phase instead of in route request phase for selecting the route
Summary
Issues related to saving energy can be found on each protocol layer in ad hoc networks. At the data link layer power can be saved by reducing control messages, which are used to assert neighbour relationships and synchronization purposes. By reducing the amount of control messages sent in MAC protocols, power will be saved, but at the expense of increased delays. The routing protocols can be designed such that there is an increase in the network lifetime by attempting to distribute the forwarding load over multiple different paths. The main objective of this paper is to investigate the performance of the energy efficient routing protocols for mobile ad hoc networks. The problem of routing in a wireless ad-hoc network from the viewpoint of energy efficiency is considered.
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