Abstract
Store-Carry-Forward (SCF) approach provides a new paradigm to route messages in Pocket Switched Network (PSN). In this approach, a router node will store and carry the messages while roaming from one place to another place. Whenever the node meets a destination node, the routing messages will be immediately forwarded to the destination node. Unfortunately, this approach is hampered by the lack of infrastructure in the network, which directly effects on the quality of interconnection among nodes. Therefore, end-to-end connection between the source node and the destination node is difficult to be obtained. Many approaches have been proposed to overcome this problem. Indeed, several routing protocols have also considered these approaches for distributing their routing messages. However, a paper survey that comprehensively summarizes the proposed solutions are difficult to be found in the literature. This leads not easy to understand problems, solutions and future works for these approaches in the network. This paper presents a comprehensive survey to track the development of Spray-and-Wait (SNW) routing protocol, one of the most popular SCF-based routing protocol in PSN.
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