| 采用黄金分割法的自适应调制无线网络跨层设计 |
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| 引用本文： | 赵军辉,田静秀,李秀萍.采用黄金分割法的自适应调制无线网络跨层设计[J].应用科学学报,2014,32(6):566-570. |
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| 作者姓名： | 赵军辉 田静秀 李秀萍 |
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| 作者单位： | 1. 北京交通大学电子信息工程学院，北京100044
2. 东南大学移动通信国家重点实验室，南京210096
3. 北京邮电大学电子工程学院，北京100876 |
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| 基金项目： | 国家自然科学基金(No.61172073, No.61471031)；教育部新世纪优秀人才支持计划基金(No.NCET-12-0766)；东南大学移动通
信国家重点实验室开放研究基金(No.2012D19)；中央高校基本科研业务费(No.2013JBZ001)资助 |
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| 摘 要： | 提出一种通过最优化网络的目标误包率来降低丢包率的方法. 物理层采用自适应调制编码方式，数据链
路层采用有限长数据缓冲区，并改变了原有网络中固定的目标误包率值. 在不同的网络参数，如网络的信噪比、功
率、带宽、包到达率等条件下，考察网络的丢包率随目标误包率的变化，总结其变化规律，并根据黄金分割法寻找
最佳的目标误包率，使得丢包率达到最小，即网络吞吐量达到最大.
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| 关 键 词： | 自适应调制 跨层设计 黄金分割法 有限长缓冲区 |
| 收稿时间： | 2012-01-02 |
| 修稿时间： | 2014-10-13 |
Cross-Layer Design with Adaptive Modulation and Coding Based on Golden Selection in Wireless Networking |
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| ZHAO Jun-hui,TIAN Jing-xiu,LI Xiu-ping.Cross-Layer Design with Adaptive Modulation and Coding Based on Golden Selection in Wireless Networking[J].Journal of Applied Sciences,2014,32(6):566-570. |
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| Authors: | ZHAO Jun-hui TIAN Jing-xiu LI Xiu-ping |
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| Institution: | 1. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;
3. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A cross-layer design is developed to reduce the packet loss rate through optimization of the network target PER. Adaptive modulation and coding (AMC) is applied on the physical layer, and a limited data buffer applied on the data link layer to change the fixed target PER of the original network. The network packet
loss rate is studied with the changing target PER beyond different network parameters including the network signal-to-noise ratio, power, bandwidth, and packet arriving rate. The changing rule is then derived. The golden selection method is chosen in search of the optimal target PER to minimize the package loss rate, or equivalently, namely maximize the network throughput. |
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| Keywords: | adaptive modulation and coding (AMC) cross-layer design golden selection method finite buffer |
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