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Message Scheduling and Forwarding in Congested DTNs

Authors:
Ahmed Elwhishi
Pin-Han Ho
Basem Shihada

Keywords: Routing, Scheduling, Buffer management, DTN

Abstract:
Multi-copy utility-based routing has been considered as one of the most applicable approaches to effective message delivery in Delay Tolerant Networks (DTNs). By allowing multiple message replicas launched, the ratio of message delivery or delay can be significantly reduced compared with other counterparts. Such an advantage, nonetheless, is at the expense of taking more buffer space at each node and higher complexity in message forwarding decisions. This paper investigates an efficient message scheduling and dropping policy via analytical modeling approach, aiming to achieve optimal performance in terms of message delivery delay. Extensive simulation results, based on a synthetic mobility model and real mobility traces, show that the proposed scheduling framework can achieve superb performance against its counterparts in terms of delivery delay.

Pages: 26 to 31

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4340

ISBN: 978-1-61208-211-0

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012