Thesis
Routing in the presence of groups in MANETs
Washington State University
Master of Science (MS), Washington State University
2009
Handle:
https://hdl.handle.net/2376/102040
Abstract
A Mobile Ad hoc NETwork (MANET) is a collection of co-operative mobile nodes that communicate over a shared wireless medium, in the absence of a supporting infrastructure such as base stations. It is envisaged that MANETs will serve applications in which a group of mobile nodes collaborate to carry out a specific task, for instance, a group of mobile tourists taking a city tour. Mobile nodes participating in a group adhere to a movement pattern that maintains spatial proximity between all group members. The concordant motion of team members collaborating on a specific goal is termed group mobility. The coordinated motion of group members and the resulting group-wise clustering of nodes, as well as the atypical traffic requirements of group mobility scenarios present a substantially different networking environment than in conventional MANETs. A routing protocol specifically tailored to exploit group mobility is, therefore, designed in this work. A service discovery-based approach to the creation of groups at the application layer and their configuration at the routing layer is first described. Next, a hierarchical design of the routing protocol that discriminates between intra- and inter-group communications is proposed. A proactive intra-group routing scheme is employed in view of the relatively small sizes of groups, and in anticipation of a healthy percentage of intra-group connections in the overall network traffic. A reactive inter-group routing algorithm is overlaid on the intra-group routing mechanism in such a manner that the propagation of route request packets is restricted within certain directions in the network. The routing protocol is implemented in ns-2 and a performance comparison against AODV [1] and DSDV [2] is made under different traffic loads, connection mixes etc.. From a total of 225 experiments, it is observed that the proposed protocol achieves 25% and 30% gains in network throughput over AODV and DSDV respectively.
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Details
- Title
- Routing in the presence of groups in MANETs
- Creators
- Madhusoodan Parthasarathy
- Contributors
- Min Sik Kim (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525275401842
- Language
- English
- Resource Type
- Thesis