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Relevant bibliographies by topics / Delay and disruption tolerant networks

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Academic literature on the topic 'Delay and disruption tolerant networks'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Delay and disruption tolerant networks"

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McMahon, Alex, and Stephen Farrell. "Delay- and Disruption-Tolerant Networking." IEEE Internet Computing 13, no. 6 (November 2009): 82–87. http://dx.doi.org/10.1109/mic.2009.127.

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SU, Jin-Shu, Qiao-Lin HU, Bao-Kang ZHAO, and Wei PENG. "Routing Techniques on Delay/Disruption Tolerant Networks." Journal of Software 21, no. 1 (February 23, 2010): 119–32. http://dx.doi.org/10.3724/sp.j.1001.2010.03689.

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Yu, Haizheng, Jianfeng Ma, and Hong Bian. "Reasonable routing in delay/disruption tolerant networks." Frontiers of Computer Science in China 5, no. 3 (April 25, 2011): 327–34. http://dx.doi.org/10.1007/s11704-011-0139-2.

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Zhang, Zhensheng, and Qian Zhang. "Delay/disruption tolerant mobilead hoc networks: latest developments." Wireless Communications and Mobile Computing 7, no. 10 (2007): 1219–32. http://dx.doi.org/10.1002/wcm.518.

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Wang, Hezhe, Guangsheng Feng, Huiqiang Wang, Hongwu Lv, and Renjie Zhou. "RABP: Delay/disruption tolerant network routing and buffer management algorithm based on weight." International Journal of Distributed Sensor Networks 14, no. 3 (March 2018): 155014771875787. http://dx.doi.org/10.1177/1550147718757874.

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Delay/disruption tolerant network is a novel network architecture, which is mainly used to provide interoperability for many challenging networks such as wireless sensor network, ad hoc networks, and satellite networks. Delay/disruption tolerant network has extremely limited network resources, and there is typically no complete path between the source and destination. To increase the message delivery reliability, several multiple copy routing algorithms have been used. However, only a few can be applied efficiently when there is a resource constraint. In this article, a delay/disruption tolerant network routing and buffer management algorithm based on weight (RABP) is proposed. This algorithm estimates the message delay and hop count to the destination node in order to construct a weight function of the delay and hop count. A node with the least weight value will be selected as the relay node, and the algorithm implements buffer management based on the weight of the message carried by the node, for efficiently utilizing the limited network resources. Simulation results show that the RABP algorithm outperforms the Epidemic, Prophet, and Spray and wait routing algorithms in terms of the message delivery ratio, average delay, network overhead, and average hop count.

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Goncalves Teixeira, Mafalda, Julio Ramirez Molina, and Vasco N. G. J. Soares. "Review on Free-Space Optical Communications for Delay and Disruption Tolerant Networks." Electronics 10, no. 13 (July 5, 2021): 1607. http://dx.doi.org/10.3390/electronics10131607.

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The increase of data-rates that are provided by free-space optical (FSO) communications is essential in our data-driven society. When used in satellite and interplanetary networks, these optical links can ensure fast connections, yet they are susceptible to atmospheric disruptions and long orbital delays. The Delay and Disruption Tolerant Networking (DTN) architecture ensures a reliable connection between two end nodes, without the need for a direct connection. This can be an asset when used with FSO links, providing protocols that can handle the intermittent nature of the connection. This paper provides a review on the theoretical and state-of-the-art studies on FSO and DTN. The aim of this review is to provide motivation for the research of an optical wireless satellite network, with focus on the use of the Licklider Transmission Protocol. The assessment presented establishes the viability of these networks, providing many examples to rely on, and summarizing the most recent stage of the development of the technologies addressed.

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de Oliveira, Etienne C. R., Edelberto Franco Silva, Diego Passos, Juliano Naves, Débora Christina Muchaluat-Saade, Igor M. Moraes, and Célio Albuquerque. "Context-Aware Routing in Delay and Disruption Tolerant Networks." International Journal of Wireless Information Networks 23, no. 3 (July 9, 2016): 231–45. http://dx.doi.org/10.1007/s10776-016-0315-2.

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Farrell, S., V. Cahill, D. Geraghty, I. Humphreys, and P. McDonald. "When TCP Breaks: Delay- and Disruption- Tolerant Networking." IEEE Internet Computing 10, no. 4 (July 2006): 72–78. http://dx.doi.org/10.1109/mic.2006.91.

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WATABE, Kohei, and Hiroyuki OHSAKI. "Contact Duration-Aware Epidemic Broadcasting in Delay/Disruption-Tolerant Networks." IEICE Transactions on Communications E98.B, no. 12 (2015): 2389–99. http://dx.doi.org/10.1587/transcom.e98.b.2389.

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Silva, Aloizio P., Katia Obraczka, Scott Burleigh, José M. S. Nogueira, and Celso M. Hirata. "A congestion control framework for delay- and disruption tolerant networks." Ad Hoc Networks 91 (August 2019): 101880. http://dx.doi.org/10.1016/j.adhoc.2019.101880.

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Dissertations / Theses on the topic "Delay and disruption tolerant networks"

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Bhutta, Muhammad Nasir Mumtaz. "Security in satellite and delay/disruption tolerant networks." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548366.

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Johnson, Enyenihi Henry. "Access control scheme for delay/disruption tolerant networks (DTNs)." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553704.

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DelaylDisruption tolerant networks (DTNs) are wireless networks where a complete path from source to destination is not in existence most of the time, and even when it does exist, it is highly unstable and unpredicted. This together with limited computing and storage capacity, heterogeneity and high error rate amongst others violate most of the internet assumptions. This necessitated the design of DTN architecture to relax some of the Internet assumptions and provide interoperabilijy across heterogeneous networks with different network characteristics. The identified security threats in these networks this work is designed to address are masquerading, modification, replay and unauthorized access/use of resources. This work proposes a novel access control scheme that is based on both secret-key and public-key cryptography. The scheme is designed to be independent of server availability and recipient network connectivity during post trust establishment communication. The main contributions in this thesis are: Propose and implement a lightweight asymmetric based Authorization Pass (APass) as an alternative to digital certificate; Design and implement a PKI-based trust management scheme that facilitates secure exchange of public keys without binding it to credential, access control implementation and flexible trust termination process; Propose and implement a trust based authentication scheme that employs Hash-based Message Authentication Code (HMAC) for message authentication and integrity, and APass for source authentication; Investigate and establish the applicability of the push messaging sequence of the generic AAA (Authentication, Authorization and Accounting) architecture with modification, and extend the proposed authentication scheme to implement policy; Propose and implement generic AAA architecture concepts based access control decision making process using DTN Bundle Node. The proposed solutions are extensively discussed with their efficiency and effectiveness as well as comparative advantage demonstrated through simulations.

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Wyllie, James. "Standardized Bundle Agent Discovery on Delay/Disruption-Tolerant Networks." Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1209155168.

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Jun, Hyewon. "Power Management in Disruption Tolerant Networks." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19879.

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Disruption Tolerant Networks (DTNs) are mobile wireless networks that are designed to work in highly-challenged environments where the density of nodes is insufficient to support direct end-to-end communication. Recent efforts in DTNs have shown that mobility provides a powerful means for delivering messages in such highly-challenging environments. Unfortunately, many mobility scenarios depend on untethered devices with limited energy supplies. Without careful management, depleted energy supplies will degrade network connectivity and counteract the robustness gained by mobility. A primary concern is the energy consumed by wireless communications because the wireless interface is one of the largest energy consumers in mobile devices whether they are actively communicating or just listening. However, mobile devices exhibit a tension between saving energy and providing connectivity through opportunistic encounters. In order to pass messages, the device must discover communication opportunities with other nodes. At the same time, energy can be conserved by ``sleeping,' i.e., turning off or disabling the wireless interfaces. However, if the wireless interface is asleep, the node cannot discover other nodes for communication. Thus, power management in DTNs must balance the discovery of other nodes while aggressively sleeping the radio during the remaining periods. In this thesis, we first develop a power management framework for a single radio architecture that allows a node to save energy while discovering communication opportunities. The framework is tailored to the available knowledge about network connectivity over time. Further, the framework supports explicit trade-offs between energy savings and connectivity, so network operators can choose, for example, to conserve energy at the cost of reduced message delivery performance. We next examine the possibility of using a hierarchical radio architecture in which nodes are equipped with two complementary radios: a long-range, high-power radio and a short-range, low-power radio. In this architecture, energy can be conserved by using the low-power radio to discover communication opportunities with other nodes and waking the high-power radio to undertake the data transmission. However, the short range of the low-power radio may result in missing communication opportunities. Thus, we develop a generalized power management framework in which both radios support the discovery. In addition, we incorporate the knowledge of traffic load and network dynamics and devise approximation algorithms to control the sleep/wake-up cycling of the radios to provide maximum energy conservation while discovering enough communication opportunities to handle the expected traffic load. Finally, we investigate the Message Ferrying (MF) routing paradigm as a means to save energy while trading off data delivery delay. In MF, special nodes called ferries move around the deployment area to deliver messages for nodes. While this routing paradigm has been developed mainly to deliver messages in partitioned networks, here we explore its use in a connected MANET. The reliance on the movement of the ferries to deliver messages increases the delivery delay if a network is not partitioned. However, delegating message delivery to the ferries provides the opportunity for nodes to save energy by aggressively putting their radios to sleep when ferries are far away. To exploit this feature, we present a power management framework, in which nodes switch their power management modes based on the knowledge of ferry location.

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Silva, Aloizio Pereira da. "A novel congestion control framework for delay and disruption tolerant networks." Instituto Tecnológico de Aeronáutica, 2015. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=3405.

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Delay and Disruption Tolerant Networks (DTNs) are networks that experience frequent and long-lived connectivity disruptions. Unlike traditional networks, such as TCP/IP Internet, DTNs are often subject to high latency caused by very long propagation delays (e.g. interplanetary communication) and/or intermittent connectivity. In DTNs there is no guarantee of end-to-end connectivity between source and destination. Such distinct features pose a number of technical challenges in designing core network functions such as routing and congestion control mechanisms. Detecting and dealing with congestion in DTNs is an important and challenging problem. Existing DTN congestion control mechanisms typically try to use some network global information or they are designed to operate in a particular scenario and they depend on forwarding strategy, for example, replication forwarding. As a result, existing DTN congestion control mechanisms do not have good performance when they are applied in different scenarios with different routing protocols. In this thesis, we first review important challenges of DTNs and survey the existing congestion control mechanisms of this domain. Furthermore, we provide a taxonomy of existing DTN congestion control mechanisms and discusses their strengths and weaknesses in the context of their assumptions and applicability in DTN applications. We also present a quantitative analysis of some DTN congestion control mechanisms to evaluate how they behave in deep space communication scenario since they were designed to operate at terrestrial DTN. We extensively evaluated these mechanisms using two different applications and three different routing protocols and mobility patterns. The evaluation results show that the selected mechanisms poorly perform in deep space scenario. Therefore, in view of DTN characteristics, to study new congestion controls and better undersand the impact of congestion in DTN we modeled DTN congestion problem using percolation theory. We formulate the DTN congestion problem as a percolation process resulting in a percolation model that is simple and easy to derive. Another important feature of the proposed percolation model is the fact that instead of requiring global information about the whole network, it relies exclusively on local information, i.e., information related to a node and its neighboring nodes. The principal advantage of our mathematical model is to provide a fast way of having an idea of the system's performance being modeled and allow us to validate either simulation or realistic experiments. Consequently the proposed model can be used to predict and control congestion in DTNs. Being aware that far from the traditional network, DTN is a new kind of network derived by deep space communication and as congestion control is an important factor that directly affects network performance. The development of DTN must rely on the perfect congestion control mechanism to ensure reliability, stability and extensiveness of the network. In order to enhance the reliability of data delivery in such challenging network, this thesis proposes DTN-Learning, an adaptive and autonomous congestion aware framework that mitigates the congestion by using Reinforcement Learning. This allows the network nodes to adapt their behavior on-line in a real environment. It is general and can easily be combined with existing schemes for local control. Preliminary results show that using our adaptive approach, the network node exhibits a more accurate behavior, increasing the delivery ratio and decreasing drop ratio, as compared to approaches that do not use learning. This mitigates congestion phenomena observed in non-adaptive local congestion control mechanisms and helps the network to reach high performance faster.

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Ansa, Godwin Okon. "Mitigating denial of sevice (DoS) attacks in delay/disruption tolerant networks (DTNs)." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580339.

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A Delay/Disruption Tolerant Network (DTN) is an overlay on top of a number of diverse networks such as mobile ad hoc networks, wireless sensor networks, satellite networks, vehicular networks and the Internet. In terrestrial DTNs, the effectiveness of data dissemination is greatly affected by node mobility and end-to-end disconnections. The inherent mobility of nodes is exploited to forward data opportunistically when a contact arises through the store-carry-and- forward technique. Thus a DTN is characterized by limited bandwidth, long queuing delays, low data rate, low power and intermittent connectivity. The real challenge is how to make DTN resilient against Denial of Service (DoS) attacks. In this thesis, we have investigated several DoS mitigating schemes for wired and wireless networks and found most of them to be highly interactive requiring several protocol rounds, resource-consuming, complex, assume persistent connectivity and hence not suitable for DTN. This thesis proposes three variants of DTN-Cookies of which any is selected as the light-weight authenticator based on the perceived Network Threat Level. For the intra-region scenario, it proposes a DoS-Resilient Authentication Mechanism to mitigate the effect of resource exhaustion DoS attacks. For the inter-region scenario, it proposes an enhanced version of the DoS-Resilient Authentication Mechanism. The proposed mechanism exploits the loose time-synchronization property of DTN, dividing communication contact time into timeslots. The mechanism uses variable seed values in different time slots for the computation and verification of DTN-Cookies, incorporates an ingress filter at the region gateways and uses the HMAC variant of DTN-Cookie. This work also proposes a comprehensive defence mechanism against flooding DoS attacks. The aim of the proposed mechanism is to restrict the volume of malicious traffic during an attack. The rate limiting component monitors the number of bundles per traffic flow and different nodes are assigned different threshold values based on their capability and role in the network. The results show that the proposed DTN-Cookies accurately detect DoS attacks and outperform RSA- 1024 digital signatures in terms of energy and bandwidth efficiency. The proposed mechanisms have been verified through simulations and their superior performance is established over solutions which are based purely on Public-Key Cryptography.

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Ismailov, Alexej. "Network Monitoring in Delay Tolerant Network." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174053.

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A Disruption Tolerant Network (DTN) is a sparse network where connectivity is regulated by the proximity of mobile nodes. Connections are sporadic and the delivery rate is closely related to node movement. As network resources often are limited in such settings, it is useful to monitor the network in order to make more efficient communication decisions. This study investigates existing routing protocols and monitoring tools for DTN that best cope with the requirements of a tactical military network. A model is proposed to estimate source to destination delay in DTN. This model is evaluated in a Java-based software simulator called The ONE. In order to match the tactical military environment, two scenarios are constructed. The squad scenario simulates the formation movement pattern of several squads and the hierarchical communication scheme that is maintained in a military context. The other scenario simulates a convoy line movement of a military group during transportation. The results of this study show that the proposed mechanism can improve delivery rate and reduce network overhead in settings with strict buffer limitations. The estimation worked best in scenarios that contained some patterns of movement or communication. These patterns are resembled in the model's collected data and the model can provide the user with rough estimates of end-to-end delays in the network. Primary use of this model has been to reduce number of old messages in the network, but other applications like anomaly detection are also discussed in this work.
Ett avbrottstolerant nätverk (DTN) är ett glest nät där konnektiviteten avgörs av närheten bland de rörliga noderna i nätverket. Avbrotten i ett sådant nät förekommer ofta och sporadiskt. Eftersom nätverksresurserna oftast är begränsade i sådana sammanhang, så är det lämpligt att övervaka nätverket för att göra det möjligt att fatta mer effektiva kommunikationsbeslut. Det här arbetet undersöker olika routingalgoritmer och övervakningsvektyg för DTN med hänsyn till de krav som ställs av ett taktiskt nät. En modell för att uppskatta fördröjningen från källa till destination är framtagen i arbetet. Modellen är utvärderad med hjälp av en Javabaserad mjukvarusimulator som heter The ONE. För att bäst representera den miljö som uppstår i militära sammanhang är två scenarion framtagna. Det första är ett truppscenario där nodernar rör sig i fromationer och nättrafiken följer den hierarkiska modellen som används i militär kommunikation. Det andra scenariot är ett konvojscenario där enheter marcherar på led. Resultaten från denna studie visar att den föreslagna modellen kan öka andelen levererade meddelanden och minska nätverksbelastningen i en miljö där bufferstorleken hos noderna är begränsad. Uppskattningen visade sig fungera bäst i scenarion som innehöll någon form av mönster bland nodernas rörelse eller deras kommunikation. Dessa mönster återspeglas i modellens insamlade data och modellen kan förse användaren med en grov estimering av slutfördröjningen till alla destinationer i nätet. Modellen har i huvudsak använts till att minska antalet gamla meddelanden i nätet, men arbetet berör även andra användningsområden som anomalidetektion.

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Grasic, Samo. "Development and Deployment of Delay Tolerant Networks: An Arctic Village Case." Doctoral thesis, Luleå tekniska universitet, Arbetsvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16919.

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In the late 1990s, NASA conducted a study of the Interplanetary Internet (IPN) architecture. In order to build and deploy IPN infrastructure, the network technology had to be able to cope with long radio signal propagation delays and frequent radio link disruptions. The concept of a Delay Tolerant Networking (DTN) emerged after recognizing that such a networking paradigm can also be applicable for terrestrial use. DTN technology can be applied, for instance, in disaster situations, military battlefields, economically developing areas, and remote regions.This thesis follows the process of applying DTN technology to a remote, communication-challenged area in the Arctic part of Sweden. The aim of the DTN deployments in the remote villages of Sarek and Padjelanta National Parks, between 2008 and 2011, was to provide a basic set of ICT services to the nomadic Sami population. Therefore, the research presented here acknowledges and considers the specific geographical, technical, and cultural conditions of these areas, and how these conditions profoundly shaped the development of the deployed technology as well as the research methodology. As a result, this thesis makes scientific contributions to several research topics, spanning the fields of DTN routing, DTN service development, DTN evaluation methodologies, and ICT deployments.The first contribution in this thesis is the proposal of a new and improved version of the PRoPHETv2 routing protocol. The development of this routing protocol was driven by actual protocol use and the results of experiments conducted during the course of the DTN deployments.Secondly, this thesis proposes an alternative DTN routing objective for a typical remote village DTN scenario. Weaknesses of a conventional DTN routing research objective are exposed by outlining concrete geographical, social, and technical conditions discovered in DTN deployments on the field. When these conditions are overlooked, they can profoundly affect DTN deployments.Thirdly, this thesis discusses the development and deployment of the Not-So-Instant-Messaging (NSIM) DTN service. The NSIM service was designed to leverage from the decentralized DTN infrastructure. Its success in the field demonstrates the importance of localized DTN services. Fourthly, using qualitative reading of DTN routing related papers, this thesis describes shortcomings of established DTN routing evaluation methodologies. Extensive use of simulated environments and scarce real-world experiments in the DTN research field often leads to usage of specific hypothetical scenarios. These scenarios are difficult to compare or relate to each other. Additionally, DTN research that does contextualize itself in remote, extreme, and challenging scenarios performs evaluations of proposed routing schemes in urban or academic environments. The DTN evaluation model that is proposed here tries to improve the readability, comparability, and validity of DTN routing evaluations. This thesis also pays attention to the issue of how to evaluate the complex interplay that occurs between researchers, users, technology and environment throughout the deployment process. The suggested method highlights the dynamics of resistance, as conceptualized within Actor Network Theory (ANT). It illustrates how employment of the concept of resistance facilitates the recognition of different driving forces in the design process that emerge from the events in the deployment.Ultimately, the thesis contributes with the PRoPHET routing protocol specification in the "Request for Comments" (RFC) document series that is the official publication channel for the Internet Research Task Force (IRTF) and other Internet communities. The protocol specification published as the RFC6693 document allows for actual protocol implementation and assures interoperability. The discussion that follows the RFC document in this thesis focuses on the process of transferring scientific findings gained from the experiments on the deployment field into the Internet draft document that was finally recognized as an experimental RFC within the IRTF.
Godkänd; 2014; 20140407 (samo); Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Samo Grasic Ämne: Arbetsvetenskap/Human Work Science Avhandling: Development and Deployment of Delay Tolerant Networks: An Arctic Village Case Opponent: Professor Lars Wolf, Institut für Betriebssysteme und Rechneverbund, Technische Universität Braunschweig, Tyskland Ordförande: Docent Maria Udén, Avd för arbetsvetenskap, Institutionen för ekonomi, teknik och samhälle, Luleå tekniska universitet Tid: Måndag den 12 maj 2014, kl 10.00 Plats: A109, Luleå tekniska universitet För Tekniska fakultetsnämnden
Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances

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Castellazzi, Nicolò. "Sviluppo di un'applicazione di sincronizzazione file per reti challenged." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10658/.

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Questa tesi si pone l'obiettivo di implementare in ambiente Linux un'applicazione di sincronizzazione, chiamata DTNbox, che permetta lo scambio di file tra due nodi di una rete classificabile come Delay-/Disruption-Tolerant Network (DTN), ossia una rete in cui a causa di ritardi, interruzioni, partizionamento, non sia possibile utilizzare l'usuale architettura di rete TCP/IP. E' evidente che i problemi menzionati rendono estremamente più complessa la sincronizzazione fra cartelle rispetto ad Internet, da cui le peculiarità di DTNbox rispetto ad altre applicazioni in rete visto che, ad esempio, non è possibile la sincronizzazione tramite un nodo centrale, come in Dropbox e similari, ma occorre basarsi su comunicazioni peer-to-peer. L'oggetto della mia tesi si è quindi sviluppato principalmente su tre direzioni: • Implementare, utilizzando il linguaggio di programmazione C, le funzionalità previste dal nuovo progetto per Linux • Integrarne e modificarne le parti ritenute carenti, man mano che i test parziali ne hanno mostrato la necessità • Testarne il suo corretto funzionamento Si è deciso pertanto di dare precedenza alla scrittura delle parti fondamentali del programma quali i moduli di controllo, la struttura e gestione del database e lo scambio di messaggi tra due nodi appartenenti ad una rete DTN per poter arrivare ad una prima versione funzionante del programma stesso, in modo che eventuali future tesi possano concentrarsi sullo sviluppo di una interfaccia grafica e sull'aggiunta di nuovi comandi e funzionalità accessorie. Il programma realizzato è stato poi testato su macchine virtuali grazie all'uso dello strumento Virtualbricks.

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Alessi, Nicola. "Hierarchical Inter-Regional Routing Algorithm for Interplanetary Networks." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17468/.

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Le comunicazioni interplanetarie sono caratterizzate da lunghi ritardi, perdite elevate e connettività intermittente con frequenti interruzioni. Lo stack TCP/IP è inadatto nell'affrontare questo tipo di problemi. Mentre inizialmente l'unico scenario di riferimento erano le comunicazioni interplanetarie, negli anni successivi è nato il termine "Challenged Networks" per identificare le reti in cui i protocolli tradizionali falliscono. L'idea si evolve così in Delay/Disruption Tolerant Networking(DTN), con l'obiettivo di fornire una soluzione adatta alle challenged network. Tra i vari aspetti in cui le reti DTN differiscono dai protocolli TCP/IP abbiamo il modo in cui viene effettuato routing. L'attuale algoritmo di routing utilizzato proposto per le reti DTN è chiamato Contact Graph Routing(CGR). L'aspetto che contraddistingue il CGR dagli algoritmi di routing tradizionali è che esso costruisce una rotta di "contatti" (ovvero delle possibilità di comunicazione programmate), anzichè costruire un percorso di nodi. Questa caratteristica è efficace nell'ambito delle reti DTN, dove i contatti sono noti a priori. Nonostante il CGR sia molto efficiente, esso presenta dei problemi di scalabilità. Infatti, con l'aumentare del numero dei contatti, il suo tempo di esecuzione tende a crescere fino a degradare le prestazioni dell'intera rete. In questa tesi viene proposto un algoritmo di routing chiamato Hierarchical Inter-regional Routing (HIRR) che ha l'obiettivo di mitigare il problema di scalabilità del CGR dividendo i nodi della rete in diverse regioni amministrative, in cui l'utilizzo del CGR non risulta essere critico. Lo scopo principale di HIRR è quindi quello di cercare di trarre il massimo beneficio dal CGR, accettando un ragionevole compromesso fra ottimalità delle rotte e tempo di calcolo. Questa tesi è stata svolta al NASA Jet Propulsion Laboratory(JPL) situato a Pasadena in California, aderendo al Visiting Student Research Program (VSRP).

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Books on the topic "Delay and disruption tolerant networks"

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Gao, Longxiang, Shui Yu, Tom H. Luan, and Wanlei Zhou. Delay Tolerant Networks. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18108-0.

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Delay tolerant networks: Protocols and applications. Boca Raton: CRC Press, 2012.

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Silva, Aloizio Pereira da, Scott Burleigh, and Katia Obraczka, eds. Delay and Disruption Tolerant Networks. CRC Press, 2018. http://dx.doi.org/10.1201/9781315271156.

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Delay- and Disruption-Tolerant Networking. Artech House Publishers, 2006.

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Delay and Disruption Tolerant Networks: Architecture, Protocols, and Applications. Taylor & Francis Group, 2018.

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Vasilakos, Athanasios V., Yan Zhang, and Thrasyvoulos Spyropoulos, eds. Delay Tolerant Networks. CRC Press, 2016. http://dx.doi.org/10.1201/b11309.

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Advances in Delay-Tolerant Networks (DTNs). Elsevier, 2015. http://dx.doi.org/10.1016/c2013-0-16374-x.

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Advances in Delay-Tolerant Networks (DTNs). Elsevier, 2021. http://dx.doi.org/10.1016/c2018-0-00632-5.

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Joel J. P. C. Rodrigues. Advances in Delay-Tolerant Networks: Architecture and Enhanced Performance. Elsevier Science & Technology, 2020.

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Advances in Delay-tolerant Networks: Architecture and Enhanced Performance. Woodhead Publishing, 2018.

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Book chapters on the topic "Delay and disruption tolerant networks"

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Campista, Miguel Elias M., and Marcelo G. Rubinstein. "Delay- and Disruption-Tolerant Network Routing." In Advanced Routing Protocols for Wireless Networks, 93–115. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118984949.ch7.

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Xu, Shuang, and Xingwei Wang. "Contact Plan Design for Space Disruption/Delay-Tolerant Networks." In Encyclopedia of Wireless Networks, 225–30. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-78262-1_194.

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Xu, Shuang, and Xingwei Wang. "Contact Plan Design for Space Disruption/Delay-Tolerant Networks." In Encyclopedia of Wireless Networks, 1–5. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-32903-1_194-1.

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Ranjan Das, Satya, Koushik Sinha, Nandini Mukherjee, and Bhabani P. Sinha. "Delay and Disruption Tolerant Networks: A Brief Survey." In Smart Innovation, Systems and Technologies, 297–305. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5971-6_32.

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Johnson, Enyenihi, Godwin Ansa, Haitham Cruickshank, and Zhili Sun. "Access Control Framework for Delay/Disruption Tolerant Networks." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 249–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13618-4_18.

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Raffelsberger, Christian, and Hermann Hellwagner. "Combined Mobile Ad-Hoc and Delay/Disruption-Tolerant Routing." In Ad-hoc, Mobile, and Wireless Networks, 1–14. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07425-2_1.

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Feng, Yankun, and Xiangyu Bai. "Energy-Saving Mechanisms for Delay- and Disruption-Tolerant Networks." In Proceedings of the 4th International Conference on Computer Engineering and Networks, 1165–76. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11104-9_134.

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Wu, Hongyi, and Zhipeng Yang. "Delay/Disruption-Tolerant Mobile RFID Networks: Challenges and Opportunities." In RFID Systems, 349–62. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470665251.ch13.

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Park, ManKyu, SeokHong Min, SangHo So, DeockGil Oh, ByungChul Kim, and JaeYong Lee. "Mobility Pattern Based Routing Algorithm for Delay/Disruption Tolerant Networks." In Smart Spaces and Next Generation Wired/Wireless Networking, 275–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14891-0_25.

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Ahmad, Naveed, Haitham Cruickshank, and Zhili Sun. "ID Based Cryptography and Anonymity in Delay/Disruption Tolerant Networks." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 265–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13618-4_19.

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Conference papers on the topic "Delay and disruption tolerant networks"

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Palazzi, C. E., A. Bujari, S. Bonetta, G. Marfia, M. Roccetti, and A. Amoroso. "MDTN: Mobile Delay/Disruption Tolerant Network." In 2011 20th International Conference on Computer Communications and Networks - ICCCN 2011. IEEE, 2011. http://dx.doi.org/10.1109/icccn.2011.6005741.

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"Delay/disruption tolerant networks — WCN-10." In 2009 Fourth International Conference on Communications and Networking in China (CHINACOM). IEEE, 2009. http://dx.doi.org/10.1109/chinacom.2009.5339827.

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Silva, Edelberto F., Etienne C. R. Oliveira, Celio V. N. de Albuquerque, and Debora Muchaluat-Saade. "Context adaptation in delay and disruption tolerant networks." In 2012 Global Information Infrastructure and Networking Symposium (GIIS). IEEE, 2012. http://dx.doi.org/10.1109/giis.2012.6466663.

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Yan, Hongcheng, Weisong Jia, Hongjun Zhang, and Jian Guo. "Message prioritization support for space Delay/Disruption Tolerant Networks." In 2016 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE). IEEE, 2016. http://dx.doi.org/10.1109/wisee.2016.7877310.

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Guo, Zheng, Gioele Colombi, Bing Wang, Jun-Hong Cui, Dario Maggiorini, and Gian Paolo Rossi. "Adaptive Routing in Underwater Delay/Disruption Tolerant Sensor Networks." In Fifth Annual Conference on Wireless on Demand Network Systems and Services (WONS 2008). IEEE, 2008. http://dx.doi.org/10.1109/wons.2008.4459352.

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Raffelsberger, Christian, and Hermann Hellwagner. "A multimedia delivery system for delay-/disruption-tolerant networks." In 2015 IEEE International Conference on Pervasive Computing and Communication Workshops (PerCom Workshops). IEEE, 2015. http://dx.doi.org/10.1109/percomw.2015.7134093.

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Silva, Aloizio P., Katia Obraczka, Scott Burleigh, and Celso M. Hirata. "Smart Congestion Control for Delay- and Disruption Tolerant Networks." In 2016 13th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON). IEEE, 2016. http://dx.doi.org/10.1109/sahcn.2016.7733018.

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Skjervold, Espen, Trude Hafsoe, Frank T. Johnsen, and Ketil Lund. "Delay and disruption tolerant Web services for heterogeneous networks." In MILCOM 2009 - 2009 IEEE Military Communications Conference. IEEE, 2009. http://dx.doi.org/10.1109/milcom.2009.5380061.

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Bhutta, N., G. Ansa, E. Johnson, N. Ahmad, M. Alsiyabi, and H. Cruickshank. "Security analysis for Delay/Disruption Tolerant satellite and sensor networks." In 2009 International Workshop on Satellite and Space Communications (IWSSC). IEEE, 2009. http://dx.doi.org/10.1109/iwssc.2009.5286339.

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Naves, Juliano F., and Igor Monteiro Moraes. "Analyzing the ACK Counterfeiting Attack in Delay and Disruption Tolerant Networks." In 2014 Brazilian Symposium on Computer Networks and Distributed Systems (SBRC). IEEE, 2014. http://dx.doi.org/10.1109/sbrc.2014.7.

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Reports on the topic "Delay and disruption tolerant networks"

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Symington, Susan, Robert C. Durst, and Keith Scott. Custodial Multicast in Delay Tolerant Networks: Challenges and Approaches. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada463904.

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Chang, MoonJeong, Ing-Ray Chen, Fenye Bao, and Jin-Hee Cho. Trust-Threshold Based Routing in Mobile Ad Hoc Delay Tolerant Networks. Fort Belvoir, VA: Defense Technical Information Center, February 2011. http://dx.doi.org/10.21236/ada536897.

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Chen, Ing-Ray, Fenye Bao, MoonJeong Chang, and Jin-Hee Cho. Dynamic Trust Management for Delay Tolerant Networks and Its Application to Secure Routing. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada583262.

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Chen, Ing-Ray, Fenye Bao, Moonjeong Chang, and Jin-Hee Cho. Integrated Social and QoS Trust-Based Routing in Mobile Ad Hoc Delay Tolerant Networks. Fort Belvoir, VA: Defense Technical Information Center, November 2010. http://dx.doi.org/10.21236/ada532173.

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Kruse, H., S. Jero, and S. Ostermann. Datagram Convergence Layers for the Delay- and Disruption-Tolerant Networking (DTN) Bundle Protocol and Licklider Transmission Protocol (LTP). RFC Editor, March 2014. http://dx.doi.org/10.17487/rfc7122.

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