A Pricing Mechanism for Resource Allocation in Wireless Multimedia Applications
A Pricing Mechanism for Resource Allocation in Wireless Multimedia Applications
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DOI：
10.1109/jstsp.2007.901519
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发表时间：
2007-07
影响因子：
7.5
通讯作者：
Fangwen Fu;T. Stoenescu;M. Schaar
中科院分区：
文献类型：
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作者：
Fangwen Fu;T. Stoenescu;M. Schaar
我们考虑由自主和非协作无线站（WSTA）部署的无线多媒体应用的多用户资源分配问题。现有的 WLAN 资源分配解决方案不是网络感知的，也没有考虑各个 WSTA 的自私行为。具体来说，自私的 WSTA 可以通过不真实地表示其私人信息（即视频特征、经验丰富的信道条件和部署的流媒体策略）来操纵网络。这通常会导致资源分配效率低下。为了克服这个障碍，我们提出了一种 WSTA 和中央频谱调节器 (CSM) 之间消息交换的定价机制。这些消息代表网络感知的资源需求和相应的价格。我们证明消息交换达到纳什均衡，并且由此产生的均衡消息产生高效、预算平衡且满足自愿参与的分配。仿真结果验证了当 WSTA 采取策略性行为时这些属性成立。此外，我们还评估了初始价格和网络拥塞程度对消息交换收敛速度的影响。
We consider the problem of multiuser resource allocation for wireless multimedia applications deployed by autonomous and noncollaborative wireless stations (WSTAs). Existing resource allocation solutions for WLANs are not network-aware and do not take into account the selfish behavior of individual WSTAs. Specifically, the selfish WSTAs can manipulate the network by untruthfully representing their private information (i.e., video characteristics, experienced channel conditions, and deployed streaming strategies). This often results in inefficient resource allocations. To overcome this obstacle, we present a pricing mechanism for message exchanges between the WSTAs and the Central Spectrum Moderator (CSM). The messages represent network-aware resource demands and corresponding prices. We prove that the message exchanges reach the Nash equilibrium and that the resulting equilibrium messages generate allocations which are efficient, budget balanced, and satisfy voluntary participation. The simulation results verify that these properties hold when the WSTAs behave strategically. Additionally, we evaluate the impact of initial prices and network congestion level on the convergence rate of message exchanges.