On Utility-Fair Bandwidth Adaptation for Multimedia Wireless Networks
On Utility-Fair Bandwidth Adaptation for Multimedia Wireless Networks
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DOI：
10.1109/icccas.2006.284595
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发表时间：
2006-06
期刊：
影响因子：
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通讯作者：
N. Lu;J. Bigham
中科院分区：
文献类型：
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作者：
N. Lu;J. Bigham
自适应带宽分配在无线通信中变得非常有吸引力，因为它可以动态调整正在进行的呼叫的分配带宽以应对网络资源波动。在本文中，我们提出了一种多媒体无线网络的实用公平带宽自适应方案。通过所提出的方案，每个调用都被分配一个效用函数。根据网络负载，正在进行的呼叫的分配带宽会升级或降级，以便所有呼叫都能获得公平的效用。仿真结果表明，我们的带宽自适应方案在实现效用公平性和降低多媒体无线网络的呼叫阻塞和切换掉线概率方面是有效的
Adaptive bandwidth allocation is becoming very attractive in wireless communications since it can dynamically adjust the allocated bandwidth of ongoing calls to cope with the network resource fluctuations. In this paper, we present a utility-fair bandwidth adaptation scheme for multimedia wireless networks. With the proposed scheme, each call is assigned a utility function. Depending on the network load the allocated bandwidth of ongoing calls are upgraded or degraded such that all calls receive fair utilities. Simulation results show that our bandwidth adaptation scheme is effective in both achieving utility fairness and reducing the call blocking and handoff dropping probabilities of multimedia wireless networks