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arXiv 1001.2272cs.NI
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Beyond 3G无线网络的呼叫接纳控制性能模型

Call Admission Control performance model for Beyond 3G Wireless Networks

H. S. Ramesh Babu, Gowri Shankar, P. S. Satyanarayana

摘要:

下一代无线网络(NGWN)在本质上将是异构的,其中不同的无线接入技术(RAT)一起操作,在这种异构环境中操作的移动终端将具有要由系统处理的不同QoS要求。这些QoS要求由一组QoS参数确定。无线资源管理是下一代网络面临的关键挑战之一。呼叫接纳控制是无线资源管理技术中的一种,它在保证无线网络中不同应用的用户所期望的QoS方面起着重要的作用。呼叫阻塞概率是无线网络的一个这样的QoS参数。为了更好的QoS,期望降低呼叫阻塞概率。在这种常见的情况下,非常需要获得分析性能模型。在本文中,我们提出了一个高阶马尔可夫链为基础的性能模型,在异构无线网络环境中的呼叫接纳控制。在该算法中,我们已经考虑了三个类的流量具有不同的QoS要求,我们已经考虑了异构网络环境,其中包括的RAT,可以有效地处理应用程序,如语音通话,Web浏览和文件传输应用程序,这是不同的QoS参数。本文提出了呼叫阻塞概率的所有三种类型的业务都为固定和变化的业务场景。

英文摘要:

The Next Generation Wireless Networks (NGWN) will be heterogeneous in nature where the different Radio Access Technologies (RATs) operate together .The mobile terminals operating in this heterogeneous environment will have different QoS requirements to be handled by the system. These QoS requirements are determined by a set of QoS parameters. The radio resource management is one of the key challenges in NGWN. Call admission control is one of the radio resource management technique plays instrumental role in ensure the desired QoS to the users working on different applications which have diversified QoS requirements from the wireless networks . The call blocking probability is one such QoS parameter for the wireless network. For better QoS it is desirable to reduce the call blocking probability. In this customary scenario it is highly desirable to obtain analytic Performance model. In this paper we propose a higher order Markov chain based performance model for call admission control in a heterogeneous wireless network environment. In the proposed algorithm we have considered three classes of traffic having different QoS requirements and we have considered the heterogeneous network environment which includes the RATs that can effectively handle applications like voice calls, Web browsing and file transfer applications which are with varied QoS parameters. The paper presents the call blocking probabilities for all the three types of traffic both for fixed and varied traffic scenario.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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