Title: An Integrated Bandwidth Adaptation
Scheme for Multimedia Wireless Networks and its Connection-Level Performance
Analysis
Authors: Ning Lu and John Bigham
Abstract: This paper presents an integrated bandwidth adaptation
scheme for multimedia wireless networks using application utility functions.
With the proposed scheme, each call in the network is assigned a utility
function according to its adaptive characteristics. Depending on the network
load the allocated bandwidth of ongoing calls are upgraded or degraded
dynamically so that the achieved utility of the network is maximized.
Appropriate call admission control and bandwidth reservation policies are also
incorporated into the scheme to provide QoS guarantees to the new and handoff
calls, respectively. Extensive simulation experiments have been conducted to
evaluate the connection-level performance of the proposed scheme. Results show
that our bandwidth adaptation scheme is effective in both increasing the
utility and bandwidth utilization of wireless networks while keeping the call
blocking and handoff dropping probabilities substantially low.