Abstract:

The effective bandwidth, acting as an economic production function of network service, is commonly used to impose admission control on realtime traffic. Yet the allocation of bandwidth and buffer remains as a technical problem and an economic one as well. A pricedriven resource composition algorithm is proposed based on Courcoubetis effective bandwidth formula, aiming to keep the allocation of bandwidth and buffer in step while following the objective of charge minimization. Then an adaptive pricing mechanism for bandwidth and buffer allocation is presented to improve the resource utilization ratio, in which prices are adjusted relatively and absolutely at different time scales respectively. Simulation results show that the proposed scheme could effectively improve the resource utilization ratio and keep the call blocked ratio at reasonable level.

Key words: resource allocation, network pricing, admission control, effective bandwidth