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Event Details
Event Name: GCCIS Ph.D. Student, Yamin Al-Mousa, Proposal Defense
Category: Academic/College Events
Sub Category: GCCIS
Description: The Impact of Adaptation Delays on Routing Protocols for Mobile Ad-Hoc Networks (MANETs)
Yamin Al-Mousa

Dissertation Committee Members:
Dr. Andres Kwasinski, Dissertation Advisor
Dr. John Hamilton
Dr. Carl Lutzer
Dr. Sumita Mishra
Dr. David Ross

MANETs are coping with major challenges such as the lack of infrastructure and Mobility which causes networks topology to change continually. Due to limited resources, nodes have to collaborate and rely packets on the behalf of neighbors to reach their destinations forming multi-hop paths. The selection and maintenance of multi-hop paths is a challenging task as their stability and existence depend on the mobility of participating nodes, where paths used few moments earlier will render invalid due to ever changing topology. The purpose of a routing protocol is to establish and select valid paths between communicating nodes and repair or remove invalid ones. As mobility rates increases, routing protocols spend more time in path maintenance and less time in actual data communication degrading network performance. This interaction among mobility, topology and routing performance is usually studied in simulation; while this study will provide a unique deep analytical study of the root cause of performance degradation with mobility. We accomplish this by, firstly, studying how mobility impacts durations of topology paths called Topological modeling. Secondly, we analyze how routing protocols adapt to topology changes in Adaptability modeling which identifies Adaptation Delays representing the time taken by a routing protocol to translate a change in topology to logical information used in path selection. Combining these two models, we get performance models of a routing protocol which later is used to optimize its operation. We apply this study on two tree-based proactive routing protocols, the Optimized Link State Routing and the Multi-Meshed Tree, for demonstrations and applicability to other protocols.
Schedules: 07/22/2013   (2:00 PM - 3:00 PM)

Contact: Joyce Hart
Cost: Cost - Free