Ad hoc networks are wireless mobile networks that can operate without infrastructure and without centralized\nnetwork management. Traditional techniques of routing are not well adapted. Indeed, their lack of reactivity with\nrespect to the variability of network changes makes them difficult to use. Moreover, conserving energy is a critical\nconcern in the design of routing protocols for ad hoc networks because most mobile nodes operate with limited\nbattery capacity, and the energy depletion of a node affects not only the node itself but also the overall network\nlifetime. In all proposed single-path routing schemes, a new path-discovery process is required once a path failure is\ndetected, and this process causes delay and wastage of node resources. A multipath routing scheme is an alternative\nto maximize the network lifetime. In this paper, we propose an energy-efficient multipath routing protocol, called ad\nhoc on-demand multipath routing with lifetime maximization (AOMR-LM), which preserves the residual energy of\nnodes and balances the consumed energy to increase the network lifetime. To achieve this goal, we used the residual\nenergy of nodes for calculating the node energy level. The multipath selection mechanism uses this energy level to\nclassify the paths. Two parameters are analyzed: the energy threshold ? and the coefficient ?. These parameters are\nrequired to classify the nodes and to ensure the preservation of node energy. Our protocol improves the performance\nof mobile ad hoc networks by prolonging the lifetime of the network. This novel protocol has been compared with\nother protocols: ad hoc on-demand multipath distance vector (AOMDV) and ZD-AOMDV. The protocol performance\nhas been evaluated in terms of network lifetime, energy consumption, and end-to-end delay.
Loading....