Maximizing User Satisfaction Based on Mobility in Heterogeneous Mobile Multimedia Communication Networks
Maximizing User Satisfaction Based on Mobility in Heterogeneous Mobile Multimedia Communication Networks
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DOI：
10.1093/ietcom/e88-b.7.2709
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发表时间：
2005-07
期刊：
影响因子：
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通讯作者：
Ved P. Kafle;E. Kamioka;S. Yamada
中科院分区：
文献类型：
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作者：
Ved P. Kafle;E. Kamioka;S. Yamada
未来的无线/移动的系统期望具有用于普适多媒体通信的异构无线覆盖网络。在这样的网络环境中，随着对带宽需求巨大的多媒体应用的增加，移动的用户可能会尝试连接到更高带宽的网络。然而，当高带宽网络由于各种原因（诸如其有限的覆盖、网络拥塞等）而变得不可用时，用户必须执行到较低带宽网络的垂直切换。在本文中，我们讨论的问题，垂直切换从用户的角度来看。为了这个目的，我们制定用户满意度作为带宽效用和切换延迟的函数。然后，我们调查的呼叫保持时间，用户移动概率等满意度，用户从使用网络服务的多媒体应用程序的效果。此外，根据评估，我们提出了一种选择无线网络的算法，该算法可以最大限度地提高用户的有效满意度。
Future wireless/mobile system is expected to have heterogeneous wireless overlay networks for ubiquitous multimedia communication. In a such network environment, mobile users are likely to try to get attached to higher bandwidth network as bandwidth-hungry multimedia applications are increasing. However, the users have to perform vertical handoff to lower bandwidth network, as high bandwidth network become unavailable due to various reasons (such as its limited coverage, network congestion, etc.). In this paper, we discuss the problem of vertical handoff from a user's perspective. For this purpose, we formulate user satisfaction as a function of bandwidth utility and handoff latency. Then, we investigate the effect of call holding time, user movement probability, etc. on the satisfaction that a user derives from the use of network service for multimedia applications. In addition, based on the evaluation, we present an algorithm for selecting a wireless network, which maximizes the effective user satisfaction.