Alhussein Abouzeid Research:
Interests
Systems: Communication Networks; Wireless Ad Hoc and Sensor Networks;
Peer-to-Peer Networks.
Applied Theory: Stochastic Processes; Algorithm and Protocol
Complexity; Multi-layer Optimization; Information Theory; Queuing Theory.
Project "Queuing": Queuing Theory
Analysis of Random Access Ad Hoc and Mesh Networks
Wireless
mesh networks, represented for example by the new IEEE 802.16 (WiMAX) standard,
are emerging as a promising means of providing connectivity to communities in
both affluent and poor parts of the world. They are also proposed as a solution
for the last-mile problem, and extending network access to rural areas. They
build on the concept of ad-hoc networks, but they also rely on the presence of
relatively more capable backbone mesh routers forming a two-level hierarchy,
thus allowing mesh networks to have better capacity than infrastructure-less
multihop ad hoc networks.
In both
types of networks, delay and throughput are two important performance metrics.
In this work, we develop a queuing network model for characterizing the average
end-to-end delay and maximum stable throughput (per source-destination pair) in
ad-hoc and wireless mesh networks that employ random medium access (MAC)
schemes. We analyze how the results obtained using the proposed queuing network
framework compare against previous information-theoretic results on asymptotic
capacity of infrastructure-less ad hoc networks.
Presentations:
Key Publications:
N.
Bisnik and A.A. Abouzeid, “Delay and Throughput in Random
Access Wireless Mesh Networks,” Proceedings of 2006
IEEE International Conference on Communications (ICC 2006),
Istanbul, Turkey, June 11-15, 2006.
N. Bisnik and
A.A. Abouzeid, “Queuing Network Models for
Delay Analysis of Multihop Wireless Ad Hoc Networks,” Proceedings
of International Symposium on Wireless Local and Personal Area Networks,
International Wireless Communications and Mobile Computing Conference (IWCMC
2006), Vancouver, Canada, July 3-6, 2006.
