Multi-path Energy Routing Protocol In Wireless Ad Hoc Networks

A mobile ad hoc network(MANET) is a wireless network with no fixed infrastructure, an autonomous system of mobile hosts connected by wireless links. Nodes belonging to MANET can either be end-points of a data interchange or can act as routers when the two end-points are not directly within their radio range. Its establishment is convenient, fast, flexible, free from the restrictions of time and space. It can be applied to rescue, the meeting, and the battlefield, explorers or the target monitoring in dangerous environment, and so on, can also be applied to the expansion of terminal in fixed infrastructure networks.Mobile nodes largely run on finite batteries, share their wireless channels, therefore, their energy and bandwidth is the scarce resources. Also, each node should not be greedy about its own power since failure of some nodes in the network might result in lack of connectivity between nodes that are alive also. A critical issue for MANET is that the activity of nodes is power-constrained. Routing protocol should consider power as a design constraint. Compared to single-path routing protocol, multi-path routing protocols can transfer data packets in a number of disjoint paths at the same time, so, it can make full use of network bandwidth and energy, improve the robustness and reliability of the network. In this paper, the ultimate objective is to design an energy conservation routing protocols based on multi-path routing protocols. My research work is divided into four parts:(1)Build mathematical model of multi-path routing protocol, compare performance of multi-path routing protocols with single-path routing protocols through the mathematical analysis and Matlab Simulation.(2)Since energy of MANET is limited and changes dynamicly, we propose a novel node energy consumption model to assess nodes' energy consumption (ECM).(3) Based on the multi-path technology and ECM model, we design a new multi-path energy saving routing protocol (MPER).(4) Simulation modules in NS2 are designed and implemented to verify feasibility and rationality of MPER, simulation results show that MPER can decrease the energy consumption and prolong the network lifetime while still maintains the advantages in packet percentage delivery and end-to-end delay as a common multi-path routing protocol.