| 异构无线网络中基于效用的呼叫接纳控制及流量均衡策略 |
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| 引用本文： | 陈明欣,朱光喜,刘干.异构无线网络中基于效用的呼叫接纳控制及流量均衡策略[J].计算机科学,2008,35(9):45-47. |
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| 作者姓名： | 陈明欣 朱光喜 刘干 |
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| 作者单位： | 华中科技大学电子与信息工程系,武汉国家光电实验室(筹)武汉,430074 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 目前国内外对于异构无线网络中联合呼叫接纳控制和流量均衡策略的研究大多停留在网络层以上,即认为不同的网络具有不同的覆盖面积和网络容量,而没有考虑不同网络在物理层和链路层的具体特性.本文在对UMTS和WLAN底层特性分析的前提下,结合应用层为用户设定的效用函数,利用跨层信息提出了一种新的联合呼叫接纳控制及流量均衡策略.仿真结果表明该策略可以使异构无线网络中所有呼叫的效用总和最大.
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| 关 键 词： | 异构无线 效用函数 呼叫接纳控制 流量均衡 |
Utility-based Call Admission Control and Load Balancing Strategy in Heterogeneous Wireless Networks |
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| CHEN Ming-xin,ZHU Guang-xi,LIU Gan.Utility-based Call Admission Control and Load Balancing Strategy in Heterogeneous Wireless Networks[J].Computer Science,2008,35(9):45-47. |
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| Authors: | CHEN Ming-xin ZHU Guang-xi LIU Gan |
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| Affiliation: | CHEN Ming-xin ZHU Guang-xi LIU Gan(Department of Electronics & Information Engineering,Wuhan National Laboratory for Optoelectronics,Huazhong University of Science , Technology,Wuhan 430074,China) |
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| Abstract: | There are many researches on call admission control and load balancing strategy in heterogeneous wireless networks,most of which are under the consideration that the only difference between UMTS and WLAN is the coverage and bandwidth,yet the network characteristics at physical layer and link layer are not taken into account.A novel utility-based call admission control and load balancing strategy is proposed.The proposed strategy utilizes the cross-layer information of both the characteristics at lower layer... |
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| Keywords: | Heterogeneous wireless networks Utility function Call admission control Load balancing |
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