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Profiles of Doctorate Dissertations
Research Relevance and Potential Impact
The research topics are clearly addressed with the emphases on critical networking environment
for MANET when both node location and network topology information are not available.
These problems are subject to deployment of MANET in support of mission-based activities in
emergency evacuation or military battlefield.
Sufficient technical surveys, including both theoretical modeling and simulation based evaluation
approaches across different layers relevant to this research are provided. This demonstrates
that the candidate has a clear understanding of the technical background and depth in research
relevant to the research work carried by this thesis. The reference is sufficient enough covering
the technical knowledge and skills required for the research works.
Theoretical modeling, analysis and performance evaluations are the major contributions of
this research work. Also, simulation-based evaluation is deployed to validate the results from
the theoretical models. Comparisons of the proposed schemes and well-known conventional
schemes are provided.
The numerical results obtained from theoretical modeling and analysis plus the verifications
obtained by simulations shows that the superiority of the proposed approaches over existing
schemes. Also, the limitations caused by the assumed conditions and their impacts to the
performances are discussed in technical details.
Relevant Publications
Journal Articles:
• Ahmed Karam and Liren Zhang. Topology Discovery in Multi-hop Clustering Vehicular
Networks, Computer Applications: An International Journal (CAIJ), Vol.2, No.3/4, November
2015.
• Ahmed Karam and Liren Zhang. Novel Random Directional Broadcast Relay Approach in
Support of Wireless Ad Hoc Sensor Network with Serious Interferences. [Forth Coming]
• Ahmed Karam and Liren Zhang. A Novel Directional Antenna Based Broadcasting Scheme for
Critical Ad hoc Environments. [Under Preparation]