tailieunhanh - Báo cáo hóa học: " Traffic-Dependent and Energy-Based Time Delay Routing Algorithms for Improving Energy Efficiency in Mobile Ad Hoc Networks"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Traffic-Dependent and Energy-Based Time Delay Routing Algorithms for Improving Energy Efficiency in Mobile Ad Hoc Networks | EURASIP Journal on Wireless Communications and Networking 2005 5 625-634 2005 K. Murugan and S. Shanmugavel Traffic-Dependent and Energy-Based Time Delay Routing Algorithms for Improving Energy Efficiency in Mobile Ad Hoc Networks K. Murugan Ramanujan Computing Centre College of Engineering Chennai India Email murugan@ S. Shanmugavel Telematics Lab Department ofECE College of Engineering Chennai India Email ssvel@ Received 4 July 2004 Revised 26 May 2005 Reducing power consumption and increasing battery life of nodes in an ad hoc network requires an integrated power control and routing strategy. The power control is achieved by new route selection mechanisms for MANET routing protocols which we call energy-based time delay routing EBTDR and highest energy routing HER . These algorithms try to increase the operational lifetime of an ad hoc network by implementing a couple of modifications to the basic DSR protocol and making it energy efficient in routing packets. The modification in EBTDR is enabled by introducing a delay in forwarding the packets by nodes which is inversely proportional to the remaining energy level of the node while in HER the route selection is based on the energy drain rate information in the route request packet to improve the fidelity in selection as it provides an optimized solution based on the link traffic in the network. It is observed from the simulation results that the proposed algorithms increase the lifetime of mobile ad hoc networks at the expense of system complexity and realization. Keywords and phrases DSR AODV energy efficient routing protocols ad hoc networks GloMoSim MANET. 1. INTRODUCTION The mobile ad hoc networks MANETs 1 are instantly deployable without anywired base station or fixed infrastructure. A node communicates directly with the nodes within radio range and indirectly with all others using a dynamically determined multihop route. The major motivation for studying ad hoc networks comes from .