Queue-Management Architecture for Delay Tolerant Networking

Abstract : During the last years, the interest in Delay/Disruption Tolerant Networks has been significantly increased, mainly because DTN covers a vast spectrum of applications, such as deep-space, satellite, sensor and vehicular networks. Even though the Bundle Protocol seems to be the prevalent candidate architecture for delay-tolerant applications, some practical issues hinder its wide deployment. One of the functionalities that require further research and implementation is DTN queue management. Indeed, queue management in DTN networks is a complex issue: loss of connectivity or extended delays, render occasionally meaningless any pre-scheduled priority for packet forwarding. Our Queue-management approach integrates connectivity status into buffering and forwarding policy, eliminating the possibility of stored data to expire and promoting applications that show potential to run smoothly. Therefore, our approach does not rely solely on marked priorities but rather on active networking conditions. We present our model analytically and compare it with standard solutions. We then develop an evaluation tool by extending ns-2 modules and, based on selective scenarios primarily from Space Communications, we demonstrate the suitability of our model for use in low-connectivity/high-delay environments.
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Communication dans un congrès
Xavier Masip-Bruin; Dominique Verchere; Vassilis Tsaoussidis; Marcelo Yannuzzi. 9th Wired/Wireless Internet Communications (WWIC), Jun 2011, Vilanova i la Geltrú, Spain. Springer, Lecture Notes in Computer Science, LNCS-6649, pp.470-482, 2011, Wired/Wireless Internet Communications. 〈10.1007/978-3-642-21560-5_39〉
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Sotirios-Angelos Lenas, Stylianos Dimitriou, Fani Tsapeli, Vassilis Tsaoussidis. Queue-Management Architecture for Delay Tolerant Networking. Xavier Masip-Bruin; Dominique Verchere; Vassilis Tsaoussidis; Marcelo Yannuzzi. 9th Wired/Wireless Internet Communications (WWIC), Jun 2011, Vilanova i la Geltrú, Spain. Springer, Lecture Notes in Computer Science, LNCS-6649, pp.470-482, 2011, Wired/Wireless Internet Communications. 〈10.1007/978-3-642-21560-5_39〉. 〈hal-01583640〉

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