earticle

영어

A communications network that is capable of storing packets temporarily in intermediate nodes, until the time an end-to-end route is re-established or regenerated is known as a delay tolerant network/s, in short, DTN. This paper aims to detail basic & general aspects specific to information needs in DTN routing and present classification chart. We start with evolution of some relevant routing objectives and issues since their inception, discuss in some detail routing types, groups and classifications. Our study culminates in identification of various schemes and techniques that will provide an insight and help us to exploit the delay and effectively utilize the time in a judicious manner to help improve the efficiency of information exchange in a DTN network. The basic objective is to utilize efficiently this temporal-period or adhoc-period by opportunistically establishing connectivity - in a strategic manner, to exchange information across locally distributed resources, thus making optimal use of available network resources and enhancing the efficiency of information exchange.