A Novel Multi Copy Routing Scheme for Delay Tolerant Networks
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 6
Abstract
A delay tolerant network (DTN) is a network designed to operate effectively over extreme distances such as those encountered in space communications or on an interplanetary scale. In such an environment, long latency -- sometimes measured in minutes, hours or days -- is inevitable. However, similar problems can also occur over more modest distances when interference is extreme or the network resources are severely overburdened. DTNs involves some of the same technologies as are used in a disruption-tolerant network b ut there are important distinctions. A DTN requires hardware that can store large amounts of data. Such media must be able to survive extended system restarts and power loss. This paper presents a multi- copy routing method for DTNs. For this we introduce a novel DTN routing protocol, called Self Adaptive Utility-based Routing Protocol (SAURP) that aims to overcome the shortcomings of the previously reported multi-copy schemes. Our main goal is to achieve a superb applicability to the DTN scenario with densely distributed hand-held devices. The main feature of SAURP method is the strong capability in adaptation to the fluctuation of network status, traffic patterns/characteristics, user encounter behaviors, and user resource availability, so as to improve network performance in terms of message delivery delay, message delivery ratio, and number of transmissions
Authors and Affiliations
Ch. S. Sastry
Keywords
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