Our focus in this work is on connection access control in networks supporting multiple types of services. The approach taken is fundamental and generic.

In the first set of papers, we consider connection-oriented services that require different amounts of network resources, e.g. integrated services in a circuit-switched or reservation-based network. We first characterize the combination of service loads that can be supported by a set of network resources, and the relationships between the load and resource requirements of each service class and the network revenue that can be obtained from these loads. We then characterize the connection access control policy that maximizes network revenue. Finally, we derive numerical techniques to increase the size of the networks for which optimal connection access control policies can be determined.

Throughput in Multiple Service Multiple Resource Communication Networks (with P.P. Varaiya), IEEE Transactions on Communications, vol. 39 no. 8, August 1991, pp. 1216-1222.

Control of Multiple Service Multiple Resource Communication Networks (with P.P. Varaiya), IEEE Transactions on Communications, vol. 42 no. 11, November 1994, pp. 2979-2988.

A Continuous State Space Model of Multiple Service Multiple Resource Communication Networks, IEEE Transactions on Communications, vol. 43 no. 2, February 1995, pp. 477-484.

A Recursive Algorithm for Bandwidth Partitioning, IEEE Transactions on Communications, vol. 58 no. 4, April 2010, pp. 1026-1030.

The second set of papers considers applications that require sequential use of network resources. The results characterize the connection access control policy that maximizes network revenue.

Access Control to Two Multiserver Loss Queues in Series (with C.-Y. Ku), IEEE Transactions on Automatic Control, vol. 42 no. 7, July 1997, pp. 1017-1023.

Near Optimal Admission Control for Multiserver Loss Queues in Series (with C.-Y. Ku), European Journal of Operations Research, vol. 144 no. 1, November 2002, pp. 166-178.

Access Control of Parallel Multiserver Loss Queues (with C.-Y. Ku), Performance Evaluation, vol. 50 no. 4, December 2002, pp 219-231.

Near-optimal Control Policy for Loss Networks (with C.Y. Ku, D.C. Yen, I.-C. Chang, and S.-H.Huang), Omega: The International Journal of Management Science, vol. 34 no. 4, August 2006, pp. 406-416.

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