ISSN(Online): 2320-9801 ISSN (Print): 2320-9798 International Journal of Innovative Research in Computer and Communication Engineering (An ISO 3297: 2007 Certified Organization) Vol. 3, Issue 7, July 2015 Copyright to IJIRCCE DOI: 10.15680/ijircce.2015. 0307005 6385 A New Scheme Location Based Caching In DTN for Efficient Data Access Archana D. Shinde 1 , Prof. Jyoti Raghatwan 2 P.G. Student, Department of Computer Engineering, RMD SSCOE Engineering College, Pune, Maharashtra, India 1 Associate Professor, Department of Computer Engineering, RMD SSCOE Engineering College, Pune, Maharashtra, India 2 ABSTRACT: Data caching can considerably improve the efficiency of data access in a wireless network which helps to reduce the access latency and bandwidth usage. This study works in DTN network as Disruption Tolerant Network (DTN) is a network architecture that is designed to distribute communications in almost stressed, unstable environments, where that network should be focus on long lasting and frequent disruptions, high bit error rates which would tries to degrade normal communications. In this paper, the location based caching severely keeping track of a node or a set of moving nodes and answer queries related to their particular locations through their paths. Data is efficiently accessed in DTN. This work consider Network centre location (NCL) to be find out among the available nodes in the network and the cache placement problem of reducing total cost of data access in mobile networks with several data nodes with limited memory capacity. This work uses distributed algorithm that logically expands to networks with nodes and state that it appreciably performs better than another existing caching technique in all important performance metrics. KEYWORDS: Disruption Tolerant Network (DTN), Network centre location (NCL), Location Based Caching, Data Access. I. INTRODUCTION Disruption Tolerant Network (DTN) is a networking architecture which is considered to provide communications in the a large amount stressed and unstable environments, at where the network would usually be subject to long lasting and frequent disruptions and also high bit error rates with the intention of severely degrade normal communications. DTN is a scheme to computer network architecture which seeks to address the practical issues in varied networks that can lack constant network connectivity. A lot of DTN routing protocols make use of a multiplicity of techniques, counting discovering the meeting probabilities surrounded by nodes, network coding and packet replication. The key focus of these mechanisms is to raise the probability of finding a path with restricted information, so these strategies have only an minor effect on routing metrics like highest or average delay of delivery. Disruption-tolerant networks (DTNs) allow transfer of data while mobile nodes are connected only from time to time. Applications of DTNs contain, vehicular networks, ocean sensor networks, large scale disaster recovery networks, people net, networks for ecological monitoring. Irregular connectivity may be a result of mobility, wireless range, sparsely, or malicious attacks power management. The inherent doubt about network conditions in DTNs makes routing a challenging problem. Unfortunately, the load of finding one path is so huge that obtainable approaches have only an minor rather than an intentional effect on such routing metrics as average delay, worst case, delivery latency, or percentage of packets delivered. Loction Based Caching is a general class of computer program level services that uses location data to control features. As such Location based caching is an information service and has a number of uses in social networking today as an entertainment service, that it is accessible with mobile devices as nodes through the mobile network which uses information on the environmental position of the mobile device. Location based caching are used in a multiplicity of contexts, such as indoor object search, health, entertainment, personal life, work etc In the earlier, many work has been done to designed a protocol for approved notification of location information of user . A different group of location