Dynamic Bandwidth Allocation for Bandwidth Asymmetry Wireless Networks

This paper addresses when and how to adjust bandwidth allocations between uplink and downlink in a multi-service wireless network with bandwidth asymmetry under dynamic traffic load conditions. A new distributed multi-service admission control policy is developed first to guarantee the call level QoS requirements. When the traffic load brought by the calls of some specific classes in a cell exceeds the control range of the admission control, bandwidth re-allocation process could be activated and the admission control policy will try to meet the QoS requirements under the adjusted bandwidth allocation.