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Title: Application of multipath routing for congestion control, load balancing and QoS provisioning in mobile ad hoc networks
Author: Mansoor Ali, K. P.
ISNI:       0000 0004 6422 1259
Awarding Body: Glasgow Caledonian University
Current Institution: Glasgow Caledonian University
Date of Award: 2017
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Mobile Ad Hoc Networks (MANETs) are infrastructure-less networks, dynamically formed by an autonomous system of mobile nodes connected via wireless links. The nodes act as end hosts as well as routers at the same time and intercommunicate through singlehop and multi-hop paths in a peer-to-peer fashion. Infrastructure-less operation and fast and on-the-fly self-configuration nature of MANETs brings up avenues for seamless low- cost communications with easy and quick deployment leading to a wide range of application areas. Recent developments in wireless networking technologies and the widespread availability of cheap, portable, powerful and application-rich wireless devices has made mobile ad hoc networking a significant research topic and an indispensable component of future networking in the more imminent age of ‘any time anywhere’ connectivity. Due to the dynamic topology and the lack of sufficient resources, traditional routing protocols cannot cope well, leading to the necessity of special routing schemes to be designed exclusively for MANETs. Though many such schemes have been introduced in the literature, most of them are based on shortest single path algorithms and address the problems of congestion control, load balancing, QoS provisioning and energy awareness individually. A review of related literature reveals that existing routing protocols developed for MANETs are not comprehensive and adaptive enough to satisfy the above application demands. This motivated the development of a set of comprehensive routing protocols for MANETs to address all of the above issues together and forms the main objective of this research. As multipath routing is found to be the most suitable choice for MANETs, this research considered that the proposed protocols should be able to provide all the features and benefits of multipath routing. Towards this objective, the research contributes four different routing protocols for MANETs as outlined below: 1. Multipath Quality of Service (QoS) routing using Mobile Routing backbones (MP- QMRB): This protocol computes multiple QoS enabled mobile routing backbones (MRB) from source to destination using nodes that are rich in communication, processing and energy resources. The MRBs use nodes that are rich in these resources and direct traffic through lowly congested areas and provide better QoS to delay sensitive applications. Simulation results show that the protocol, when tested with constant bit rate (CBR) and file transfer protocol (FTP) traffic, reduces packet end-to-end delay considerably and improves network throughput and packet delivery ratio when compared with single path quality of service mobile routing backbone over AODV (QMRB-AODV) and Ad hoc On demand Multipath Distance Vector (AOMDV) protocols. The protocol is particularly suitable for dense MANETs where there will be an increased chance for finding more MRBs.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available