Design of Delay-Tolerant Transport Protocol (DTTP) and its evaluation for Mars

Samaras, Christos; Tsaoussidis, Vassilis

doi:10.1016/j.actaastro.2010.05.025

Cited by 10 publications

(10 citation statements)

References 12 publications

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“…In reality, if a packet arrives in the middle of the period T , it may not be able to reach the destination in the end of T via the constructed topology. However, in many time-evolving DTNs (such as the interplanetary space DTN [11], [12], [13], the cyclic mobispace [46] or periodic sensor networks [47]), the mobility process of network is periodic and the routing is repeated. Thus, the delivery of packets is still guaranteed in such cases.…”

Section: Hardness and Discussionmentioning

confidence: 99%

“…Space DTNs for Mars exploration have been studied in [12], [59]. It is well-known that relay communication via Mars-orbiting satellites (spacecrafts) offers significant advantages relative to conventional direct-to-Earth communications.…”

Section: Simulations On a Space Dtn For Mars Explorationmentioning

confidence: 99%

“…For certain type of networks, the temporal characteristics of topology could be known a priori or can be predicted from historical tracing data. For example, it is easy to discover the temporal patterns of topology for a DTN formed by either public buses [3] or satellites [11], [12], [13] which have fixed tours and schedules, or a mobile social network [20] consisting of students who share fixed class schedules. A recent study [28] also shows that human mobility model can achieve a 93% potential predictability.…”

Section: Introductionmentioning

confidence: 99%

“…D ELAY or disruption tolerant networks (DTNs) have been used for a wide range of applications to provide robust data communications in challenging environments, such as pocket switched networks [1], [2], vehicular ad hoc networks [3], [4], [5], mobile sensor networks [6], [7], mobile social networks [8], [9], disaster-relief networks [10], or space communication networks [11], [12], [13]. In DTNs, the lack of continuous connectivity, network partitioning, long delays, unreliable time-varying links, and dynamic topology pose new challenges in design of DTN network protocols.…”

Section: Introductionmentioning

confidence: 99%

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Reliable Topology Design in Time-Evolving Delay-Tolerant Networks with Unreliable Links

Chen

Huang

et al. 2015

IEEE Trans. on Mobile Comput.

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Delay tolerant networks (DTNs) recently have drawn much attention from researchers due to their wide applications in various challenging environments. Previous DTN research mainly concentrates on information propagation and packet delivery. However, with possible participation of a large number of mobile devices, how to maintain efficient and dynamic topology becomes crucial. In this paper, we study the topology design problem in a predictable DTN where the time-evolving topology is known a priori or can be predicted. We model such a time-evolving network as a weighted directed space-time graph which includes both spacial and temporal information. Links inside the space-time graph are unreliable due to either the dynamic nature of wireless communications or the rough prediction of underlying human/device mobility. The purpose of our reliable topology design problem is to build a sparse structure from the original space-time graph such that (1) for any pair of devices, there is a space-time path connecting them with a reliability higher than the required threshold; (2) the total cost of the structure is minimized. Such an optimization problem is NP-hard, thus we propose several heuristics which can significantly reduce the total cost of the topology while maintain the "reliable" connectivity over time. In this paper, we consider both unicast and broadcast reliability of a topology. Finally, extensive simulations are conducted on random DTNs, a synthetic space DTN, and a real-world DTN tracing data. Results demonstrate the efficiency of the proposed methods.

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Section: Hardness and Discussionmentioning

confidence: 99%

Section: Simulations On a Space Dtn For Mars Explorationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reliable Topology Design in Time-Evolving Delay-Tolerant Networks with Unreliable Links

Chen

Huang

et al. 2015

IEEE Trans. on Mobile Comput.

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“…Delay Tolerant Transport Protocol (DTTP), a protocol with both transport and network layer characteristics designed for delay tolerant networks, has been proposed in [14]. DTTP allows dynamic routing, as each node is able to adapt its routing decisions autonomously according to measurements about each path's performance.…”

Section: Related Workmentioning

confidence: 99%

Bundle Layer End-to-end Retransmission Mechanism

Koutsogiannis

Tsapeli

Tsaoussidis

2011

2011 Baltic Congress on Future Internet and Communications

Self Cite

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Delay Tolerant Networking (DTN) has been proposed as a global overlay architecture to provide network connectivity in challenged environments such as deep-space communications field. Bundle Protocol along with its convergence layer protocols transform end-to-end reliability into questionable hop-by-hop reliable communication and imposes a two-tier routing policy that allows flexible routes only within regions. In this paper we propose a Bundle layer end-to-end reliability mechanism (BLER) and evaluate its performance in a DTN testbed in conjunction with similar mechanisms. We highlight the advantages of BLER mechanism in space communication scenarios which cannot be adequately addressed by the current DTN architecture and hop-by-hop reliability mechanisms in general. Index Terms-Delay Tolerant Networking, deep space communications,end-to-end reliability, retransmission mechanism.

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Network protocol architectures for future deep-space internetworking

Zhao¹,

Zhang²

2018

Sci. China Inf. Sci.

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Design of Delay-Tolerant Transport Protocol (DTTP) and its evaluation for Mars

Cited by 10 publications

References 12 publications

Reliable Topology Design in Time-Evolving Delay-Tolerant Networks with Unreliable Links

Reliable Topology Design in Time-Evolving Delay-Tolerant Networks with Unreliable Links

Bundle Layer End-to-end Retransmission Mechanism

Network protocol architectures for future deep-space internetworking

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