Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320–088X IJCSMC, Vol. 2, Issue. 7, July 2013, pg.296 – 301 RESEARCH ARTICLE © 2013, IJCSMC All Rights Reserved 296 ENERGY EFFICIENT ROUTING IN MANET WITH ZRP AND ANYCAST Satya Bhushan Verma M.M.University Mullana Ambala Haryana, India meetsatya2008@gmail.com Abstract— The Adhoc network is a wireless network without a fixed infrastructure, and this usually established on a temporary basis for a particular purpose like emergency rescue or military communication. And energy management in adhoc networks deal with the process of managing energy resources that means the controlling of battery discharge, modifying the transmission power, and scheduling the power sources for the increasing of lifetime of the nodes in an adhoc network. In adhoc network all mobile nodes are powered by energy constraint battery, it could be difficult for a mobile node to sustain for a long time if it send and receive data more often. To solve this problem we describe the energy efficient routing in mobile adhoc network using Zone Routing Protocol (ZRP) and anycast addressing and we also simulate using NS2 simulator. The zone routing protocol behave as hybrid routing, proactive (table driven) and reactive (on demand) methodology to provide scalable routing in the ad-hoc network. Key Terms: - MANET; ZRP; ANYCAST; HYBRID PROTCOL; ENERGY EFFICIENT I. INTRODUCTION A mobile adhoc network (MANET) is a self-configuring infrastructure less network of group of mobile devices that’s communicating via wireless. Each device in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently. A mobile ad hoc network (MANET) is a collection of wireless mobile nodes which have the ability to communicate with each other without having fixed network infrastructure or any central base station. Since mobile nodes are not controlled by any other controlling entity, they have unrestricted mobility and connectivity to others. Routing and network management are done cooperatively by each other nodes. Due to its dynamic nature MANET has larger security issues than conventional networks. A MANET is a type of ad hoc network that can change locations and configure itself on the fly. Because MANET is mobile, they use wireless connections to connect to various networks. This can be a standard Wi-Fi connection, or another medium, such as a cellular or satellite transmission. 1.1. Difference between MANET and WLAN Manets are animatedly created and maintained by the individual nodes comprising the network. They do not need a pre-existing architecture for communication purposes and do not depend on any type of wired infrastructure; in an ad hoc network all communicating medium is wireless. Manet contains a special subset of wireless networks since they do not require the existence of a centralized message-passing device, but in WLAN is a wireless network that’s require existence of access points or static base stations, which are responsible for routing messages to and from mobile nodes within the specified transmission area.