NDLI: CCPMFM: A community-based message forwarding method in Delay Tolerant Networks

Content Provider	IEEE Xplore Digital Library
Author	Ravaei, B. Sabaei, M. Pedram, H.
Copyright Year	2014
Description	Author affiliation: Dept. of Comput. Eng., Amirkabir Univ. of Technol. (Tehran Polytech.) Tehran, Tehran, Iran (Ravaei, B.; Sabaei, M.; Pedram, H.)
Abstract	In Delay Tolerant Networks (DTNs), message forwarding is a challenging open problem because of low node density and lack of global information. Most of the previous forwarding methods select a node as a relay node with the best cumulative and global ability of contacting the destination without considering the maximum message acceptable delivery latency. However, if the network is composed of several communities, the cumulatively and globally calculated forwarding metric (and not in each community) will not have suitable estimation of contact between relay node and destination. Therefore, in this paper, we introduce and evaluate a novel forwarding method, which called Community-based Contact Prediction message forwarding method (CCPMFM). The CCPMFM exploits a semi-Markov process to explain and predict the node mobility between communities. The CCPMFM selects the relay node with regard to the maximum message acceptable delivery latency. To calculate the forwarding metric, CCPMFM considers the contact patterns of each community only for the same community and not for the entire network. CCPMFM also selects the relay node with regard to maximum message acceptable delivery latency. The evaluation results show that this method improves the delivery ratio and reduces the number of message forwardings and delivery latency with respect to prevalent DTNs forwarding methods.
Starting Page	664
Ending Page	669
File Size	314968
Page Count	6
File Format	PDF
e-ISBN	9781479953592
DOI	10.1109/ISTEL.2014.7000787
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-09
Publisher Place	Iran
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Semi-Markov Model Communities Message forwarding Routing Delays Relays Kernel Delay Tolerant Networks Social Delay Tolerant Networks Community
Content Type	Text
Resource Type	Article

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