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Increasing the Performance of MANETs: Throughput and QoS Performance Enhancing Mechanisms for Unicast and Group Communicationin Proactive Mobile Ad Hoc Networks
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Telematics.
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Mobile Ad hoc NETworks (MANETs) have the potential for increasing the information flow in emergency and rescue operations. Rapid response in areas without existing infrastructure is currently limited to single hop technologies, primarily voice communication using "walkie-talkies".

While MANETs can offer multi-hop broadband communication for emergency and rescue operations, there are challenges that currently limit their usefulness. These challenges are linked to aspects such as capacity, density, collisions and mobility, all of which affect the Quality of Service (QoS) and Quality of Experience (QoE) offered by the MANET.

The work in this thesis investigates problems related both to unicast and group communication for MANETs. In unicast communication, it is shown that the delay between a link break and the rerouting is affected by the interface queue size and the traffic load. Several solutions to reduce the rerouting time are proposed, e.g., reducing the interface queue, or avoiding links that are likely to be broken. Along with the rerouting time, the throughput in and out of a MANET is also affected by the position of one or more gateways.

Further, it is shown that the QoS of group communication voice traffic can be maintained with other traffic in the network, using preemptive mechanisms. Finally, a typical group communication forwarding algorithm is improved by combining it with another algorithm. Also, a preemptive selection of algorithm for lower priority traffic when voice traffic is active in the network is shown to improve the overall QoS for both the voice and lower priority traffic.

Place, publisher, year, edition, pages
NTNU, 2011.
Series
Doctoral theses at NTNU, ISSN 1503-8181 ; 2011:21
Identifiers
URN: urn:nbn:no:ntnu:diva-12494OAI: oai:DiVA.org:ntnu-12494DiVA: diva2:410905
Public defence
2011-01-28, 00:00
Available from: 2011-04-15 Created: 2011-04-15 Last updated: 2011-04-15Bibliographically approved
List of papers
1. Rerouting Time and Queueing in Proactive Ad Hoc Networks
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2007 (English)In: In proceedings of the International Performance Computing and Communications Conference, IEEE , 2007, 160-169 p.Conference paper (Refereed)
Place, publisher, year, edition, pages
IEEE, 2007
Keyword
access protocols, ad hoc networks, mobile radio, queueing theory, routing protocols, MAC-layer solution, MANET network, proactive ad hoc networks, queueing, rerouting time, routing protocol
Identifiers
urn:nbn:no:ntnu:diva-12489 (URN)10.1109/PCCC.2007.358891 (DOI)
Conference
IPCCC 2007
Note
(c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Available from: 2011-04-15 Created: 2011-04-14 Last updated: 2012-02-24Bibliographically approved
2. Gateways and Capacity in Ad Hoc Networks
Open this publication in new window or tab >>Gateways and Capacity in Ad Hoc Networks
2008 (English)In: Proceedings of the International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services, IEEE , 2008, 390-399 p.Conference paper (Refereed)
Place, publisher, year, edition, pages
IEEE, 2008
Keyword
ad hoc networks, channel capacity, internetworking, average path length, gateway nodes, gateways shared interference, handover properties, network capacity, throughput dependency
Identifiers
urn:nbn:no:ntnu:diva-12492 (URN)10.1109/ICSNC.2008.40 (DOI)
Conference
I-CENTRIC 2008
Note
(c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Available from: 2011-04-15 Created: 2011-04-14 Last updated: 2012-02-24Bibliographically approved
3. Routing with transmission buffer zones in MANETs
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2009 (English)In: Proceedingsof the IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, IEEE , 2009, 1-10 p.Conference paper (Refereed)
Place, publisher, year, edition, pages
IEEE, 2009
Keyword
ad hoc networks, mobile radio, probability, routing protocols, MANET, mobile ad hoc networks, network partitioning, relay nodes, routing protocol, transmission buffer zones
Identifiers
urn:nbn:no:ntnu:diva-12491 (URN)10.1109/WOWMOM.2009.5282463 (DOI)978-1-4244-4440-3 (ISBN)
Conference
WoWMoM 2009
Note
(c) 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.Available from: 2011-04-15 Created: 2011-04-14 Last updated: 2011-04-15Bibliographically approved
4. Preemption mechanisms for push-to-talk in ad hoc networks
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2009 (English)In: Proceedings of the 34th IEEE Conference on Local ComputerNetworks, 2009, 428-435 p.Conference paper (Refereed)
Keyword
ad hoc networks, telecommunication congestion control, background traffic, multihop ad hoc networks, packet loss, preemption mechanism, push-to-talk application, push-to-talk traffic, voice traffic
Identifiers
urn:nbn:no:ntnu:diva-12490 (URN)10.1109/LCN.2009.5355160 (DOI)
Conference
LCN 2009
Note
(c) 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.Available from: 2011-04-14 Created: 2011-04-14 Last updated: 2011-04-15Bibliographically approved
5. Optimized group communication for tactical military networks
Open this publication in new window or tab >>Optimized group communication for tactical military networks
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2010 (English)In: Proceedings of the IEEE Military Communications Conference, 2010Conference paper (Refereed)
Keyword
ad hoc networks, military communication, mobility management (mobile radio), telecommunication traffic, voice communication, flooding protocol, information sharing, optimized group communication, position sharing, push-to-talk voice communication, simplified multicast forwarding, situational awareness traffic, tactical military ad hoc networks, tactical military networks
Identifiers
urn:nbn:no:ntnu:diva-12493 (URN)10.1109/MILCOM.2010.5680404 (DOI)
Conference
MILCOM 2010
Note
(c) 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.Available from: 2011-04-14 Created: 2011-04-14 Last updated: 2011-04-15Bibliographically approved

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