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Using ferry access points to improve the performance of message ferrying in delay-tolerant networks

Version 2 2024-06-04, 05:58
Version 1 2017-10-31, 12:45
journal contribution
posted on 2024-06-04, 05:58 authored by F Yasmeen, MN Huda, ME Haque, M Aoki, S Yamada
Delay-Tolerant Networks (DTNs) are sparse, wireless networks where disconnections are common due to host mobility and low node density. The Message Ferrying (MF) scheme is a mobilityassisted paradigm to improve connectivity in DTN-like networks. A ferry or message ferry is a special node in the network which has a per-determined route in the deployed area and relays messages between mobile hosts (MHs) which are intermittently connected. Increased contact opportunities among mobile hosts and the ferry improve the performance of the network, both in terms of message delivery ratio and average end-end delay. However, due to the inherent mobility of mobile hosts and pre-determined periodicity of the message ferry, mobile hosts may often 'miss' contact opportunities with a ferry. In this paper, we propose the combination of stationary ferry access points (FAPs) with MF routing to increase contact opportunities between mobile hosts and the MF and consequently improve the performance of the DTN. We also propose several placement models for deploying FAPs on MF routes. We evaluate the performance of the FAP placement models through comprehensive simulation. Our findings show that FAPs do improve the performance of MF-assisted DTNs and symmetric placement of FAPs outperforms other placement strategies.

History

Journal

International journal of electronics and communication engineering

Volume

5

Pagination

909-915

Location

[Turkey]

ISSN

2010-376X

eISSN

2010-3778

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

[2011, World Academy of Science, Engineering and Technology]

Issue

8

Publisher

World Academy of Science, Engineering and Technology

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