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A new variable bandwidth scheme (VBS) for channel resources predictive control and call admission control in cellular networks is presented in the paper. VBS mainly aims to the QoS enhancement of cellular networks. Compared with the time-based channel predictive control (TCPC) schemes, VBS has a good performance in call dropping probability (CDP) and call blocking probability (CBP). Moreover, considering...
Effective and efficient management of wireless network resources is attracting more and more research attention, due to the rapid growing deployment of wireless mesh and ad hoc networks and to the increasing demand for Quality of Service (QoS) support in these networks. This paper proposes an adaptive network resource management scheme in the popular IEEE 802.11 random access MAC by adaptively adjusting...
VoIP has been widely investigated to provide statistical quality of service (QoS) guarantees. We address the issue of how to select an efficient route to carry real-time traffic. Each eligible route is assigned a weight, which is updated according to network level QoS evaluation. When a new coming call arrives, originating signaling server first chooses two candidate routes from all practicable routes...
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