NDLI: Memory Forwarding Algorithm in Multiple Communities Delay Tolerant Networks

Content Provider	Springer Nature Link
Author	Wang, Qingshan Wang, Qi
Copyright Year	2013
Abstract	The routing is one of the key problems in delay tolerant networks (DTNs) because the source and destination often could not find a contemporaneous end-to-end path. In this paper, with the objective of reducing the number of copies, we propose two corresponding routings including a memory forwarding algorithm (MFA) and an extended memory forwarding algorithm (EMFA) for the specific type of node placement in DTNs where the nodes are randomly located and moved at different communities. The main idea of our algorithms are that the node copies a packet to an encountering node or not based on the relationship of their and the destination’s community locations calculated from the memory table, and they are designed for small and moderate number of communities respectively. We then state and analyze the expected number of copies of our algorithms. Simulation results reveal that MFA and EMFA can apparently decrease the number of copies and achieve comparable delivery delays compared with the classic multi-copy routings.
Starting Page	703
Ending Page	715
Page Count	13
File Format	PDF
ISSN	09296212
Journal	Wireless Personal Communications
Volume Number	74
Issue Number	2
e-ISSN	1572834X
Language	English
Publisher	Springer US
Publisher Date	2013-07-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Copy Delay tolerant networks Forwarding Memory Communications Engineering, Networks Signal, Image and Speech Processing Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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