Mobility Investigate

Delegation Forwarding in Delay Tolerant Networks Multicasting

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Executive Summary

Delay Tolerant Networks (DTNs) are a special type of wireless mobile networks which may lack continuous network connectivity. Multicast supports the distribution of data to a group of users, a service needed for many potential DTNs applications. While multicasting in the Internet and mobile ad hoc networks has been studied extensively, due to the unique characteristic of frequent partitioning in DTNs, multicasting in DTNs is a considerably different and challenging problem. It not only requires new destinations of multicast semantics, but also brings new issues to the design of routing algorithms. In this paper, the authors propose new forwarding models for DTNs multicast and develop several multicast forwarding algorithms.

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