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Journal of Sensors
Volume 2015, Article ID 410298, 9 pages
http://dx.doi.org/10.1155/2015/410298
Research Article

GTDM: A DTN Routing on Noncooperative Game Theory in a City Environment

1College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
2College of Communication Engineering, Chengdu University of Information Technology, Chengdu 610225, China
3School of Computer Science, Sichuan University, Chengdu 610065, China

Received 16 October 2014; Revised 29 March 2015; Accepted 29 March 2015

Academic Editor: Qing-An Zeng

Copyright © 2015 Wenzao Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The performance of delay tolerant networks (DTNs) can be influenced by movement model in different application environments. The existing routing algorithms of DTNs do not meet the current city environments due to the large differences in node densities, social characteristics, and limited energy. The key indicators of DTNs such as success delivery ratio, average delivery latency, network lifetime, and network overhead ratio can influence the performances of civil DTNs applications. Aiming to improve the key indicators of DTNs in city environments, this paper presents a fixed sink station based structure and a more proper routing algorithm named Game Theory Based Decision Making (GTDM). GTDM shows decision-making process for neighborhood selection and packet delivering strategy which is based on the noncooperative game theory method and city environment characteristics. GTDM performance is evaluated using numerical simulations under Working Day Movement (WDM) model and the results suggested that GTDM outperforms other traditional DTNs routing approaches, such as Epidemic and Prophet algorithms.