Quasi Fair Forwarding Strategy for Delay Tolerant Networks

Seok-Kap KO  Hakjeon BANG  Kyungran KANG  Chang-Soo PARK  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.11   pp.3585-3589
Publication Date: 2012/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3585
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
delay tolerant network,  fairness,  forwarding strategy,  delivery probability,  

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Existing forwarding strategies for delay tolerant networks aim at network throughput maximization. They provide forwarding opportunities to more reachable destinations. This results in the long end-to-end delay and low throughput of less reachable destinations. In this paper, we propose two forwarding strategies to improve the throughput of less reachable nodes with little throughput degradation of more reachable nodes. Evaluation results show that the proposed forwarding strategies can control the levels of fairness among the destinations while maintaining high throughput, compared with the legacy forwarding strategies.