Improve energy routing scheme for mobile ad hoc network Using variable range transmission

Abstract

A MANET (Mobile Ad-hoc Network) is a self-sustained, multi-hop communication network where nodes interact directly or indirectly through intermediaries, making every node act as a mobile router that adheres to a routing protocol for route determination and maintenance. In the MANET ecosystem, every node relies on limited battery power, rendering efficient energy management a critical concern. Therefore, optimizing energy usage stands as a paramount challenge in the context of MANETs. When nodes possess awareness of both their energy levels and the recipient's location, it facilitates reduced energy consumption and augments throughput. In response to these challenges, this paper introduces an innovative approach to enhance energy efficiency in MANETs. We propose an Improved Energy Routing Scheme that leverages the concept of Variable Range Transmission (VRT) as a foundational element. The primary objective of this scheme is reduce the energy content used while maintaining robust and efficient routing within the network. Our proposed scheme incorporates the EEAOMDV (Energy-Efficient On Demand Multipath Distance Vector) routing protocol, which builds upon the principles of the traditional AOMDV protocol. EEAOMDV integrates VRT, enabling nodes to dynamically adjust their transmission ranges based on their remaining energy levels. This adaptive mechanism ensures the optimal utilization of energy resources, thereby enhancing overall network performance. A notable feature of EEAOMDV is its capability to improve packet delivery ratios by selectively forwarding data packets along multiple disjoint paths. This feature proves especially valuable in highly mobile and dynamic environments, ensuring reliable communication even in challenging conditions. Through extensive simulations conducted using a network simulator called NS2, we evaluate the performance of EEAOMDV and compare it with the traditional AOMDV protocol. Our results demonstrate that EEAOMDV consistently outperforms AOMDV in terms of packet delivery ratios, energy efficiency, and network longevity. This research contributes to ongoing efforts to maximize energy efficiency and routing in MANETs, addressing the evolving requirements of modern mobile communication systems and promoting sustainability in wireless networking.