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Optimal relaying in heterogeneous delay tolerant networks

Optimal relaying in heterogeneous delay tolerant networks
Optimal relaying in heterogeneous delay tolerant networks
In Delay Tolerant Networks (DTNs), there exists only intermittent connectivity between communication sources and destinations. In order to provide successful communication services for these challenged networks, a variety of relaying and routing algorithms have been proposed with the assumption that nodes are homogeneous in terms of contact rates and delivery costs. However, various applications of DTN have shown that mobile nodes should be divided into different classes in terms of their energy requirements and communication ability, and real application data have revealed the heterogeneous contact rates between node pairs. In this paper, we design an optimal relaying scheme for DTNs, which takes into account nodes’ heterogeneous contact rates and delivery costs when selecting relays to minimise the delivery cost while satisfying the required message delivery probability. Extensive results based on real traces demonstrate that our relaying scheme requires the least delivery cost and achieves the largest maximum delivery probability, compared with the schemes that neglect nodes’ heterogeneity.
5 pages
Li, Yong
e32a7b67-e3c1-4eb1-b45e-f0537824436d
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Jin, Depeng
d5ef5d7e-82a7-4950-85cf-800fe7794cc5
Su, Li
eb58753c-1d75-48e1-889a-e64e4f9d4adc
Zeng, Lieguang
7c5984b7-b38d-44a1-a1f5-66f2b87e6ff9
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Li, Yong
e32a7b67-e3c1-4eb1-b45e-f0537824436d
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Jin, Depeng
d5ef5d7e-82a7-4950-85cf-800fe7794cc5
Su, Li
eb58753c-1d75-48e1-889a-e64e4f9d4adc
Zeng, Lieguang
7c5984b7-b38d-44a1-a1f5-66f2b87e6ff9
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80

Li, Yong, Wang, Zhaocheng, Jin, Depeng, Su, Li, Zeng, Lieguang and Chen, Sheng (2011) Optimal relaying in heterogeneous delay tolerant networks At IEEE International Conference on Communications, Japan. 05 - 09 Jun 2011. , 5 pages.

Record type: Conference or Workshop Item (Other)

Abstract

In Delay Tolerant Networks (DTNs), there exists only intermittent connectivity between communication sources and destinations. In order to provide successful communication services for these challenged networks, a variety of relaying and routing algorithms have been proposed with the assumption that nodes are homogeneous in terms of contact rates and delivery costs. However, various applications of DTN have shown that mobile nodes should be divided into different classes in terms of their energy requirements and communication ability, and real application data have revealed the heterogeneous contact rates between node pairs. In this paper, we design an optimal relaying scheme for DTNs, which takes into account nodes’ heterogeneous contact rates and delivery costs when selecting relays to minimise the delivery cost while satisfying the required message delivery probability. Extensive results based on real traces demonstrate that our relaying scheme requires the least delivery cost and achieves the largest maximum delivery probability, compared with the schemes that neglect nodes’ heterogeneity.

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More information

Published date: June 2011
Additional Information: Event Dates: June 5-9, 2011
Venue - Dates: IEEE International Conference on Communications, Japan, 2011-06-05 - 2011-06-09
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 272317
URI: https://eprints.soton.ac.uk/id/eprint/272317
PURE UUID: eb20f0b6-2629-4def-9d8c-9bef3ad5a86a

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Date deposited: 23 May 2011 12:30
Last modified: 18 Jul 2017 06:25

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Contributors

Author: Yong Li
Author: Zhaocheng Wang
Author: Depeng Jin
Author: Li Su
Author: Lieguang Zeng
Author: Sheng Chen

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