Resource sharing for book-ahead and instantaneous-request calls
IEEE/ACM Transactions on Networking (TON)
Resource sharing in advance reservation agents
Journal of High Speed Networks - Special issue on multimedia networking
QoS Negotiation in Real-Time Systems and Its Application to Automated Flight Control
IEEE Transactions on Computers
Distributed Advance Reservation of Real-Time Connections
NOSSDAV '95 Proceedings of the 5th International Workshop on Network and Operating System Support for Digital Audio and Video
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This paper presents a Service Level Agreement (SLA) negotiation technique for Instantaneous Request (IR) call connections based on information in context of Book-Ahead (BA) reservation. Resource sharing between IR and BA reservation imposes a number of problems in a QoS-enabled network. One of the problems is preemption of on-going IR calls. Call admission control models proposed in literature reduce high preemption rate at the cost of higher call blocking rate and lower resource utilization. The negotiation technique proposed in this paper is based on information like look-ahead time for BA calls and negotiable requirements of IR calls. The technique allows admission of some of the IR calls that would otherwise be blocked due to resource scarcity arising from BA call activation. Simulation results show that the proposed negotiation based call admission control model achieves the desired objective of higher resource utilization and lower call blocking rate.