| WiMAX中基于跨层设计的SNR阈值区间可变式自适应调制编码机制 |
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| 引用本文： | 陈婷,李建东,李长乐. WiMAX中基于跨层设计的SNR阈值区间可变式自适应调制编码机制[J]. 中国通信, 2010, 7(2): 100-108 |
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| 作者姓名： | 陈婷 李建东 李长乐 |
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| 作者单位： | 西安电子科技大学综合业务网理论和关键技术国家重点实验室; |
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| 基金项目： | supported by National Science Fund for Distinguished Young Scholars (60725105); National Basic Research Program of China (973 Program) (2009CB320404); Program for Changjiang Scholars and Innovative Research Team in University (IRT0852); the 863 project (2007AA01Z217); the National Nature Science Foundation of China (60972048, 60972047, 60702057); the 111 Project (B08038); the Key Project of Chinese Ministry of Education (107103); Basic Science Research Fund in Xidian University (JY10000... |
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| 摘 要： | IEE 802.16标准在物理层定义了多种可选的调制和编码方式，并可采用基于信道状态信息的自适应调制编码机制。本文提出一种新的适用于全球微波接入互操作网络的信噪比阈值区间可变式自适应调制编码机制，其自适应调制-编码模式不仅取决于物理层信道状态信息，还与高层多媒体服务流的目标误包率这一重要服务质量参数有关。与传统型和改进型自适应调制编码机制相比，信噪比阈值区间可变式自适应调制编码机制能够在满足各类业务目标误包率的同时获得较好的系统有效数据传输速率。
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| 关 键 词： | 全球微波接入互操作 跨层设计 自适应调制编码 误包率 |
| 收稿时间： | 2011-06-28; |
A Novel AMC Scheme with Alterable SNR Threshold Intervals based on Cross-layer Design in WiMAX |
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| Chen Ting,Li Jiandong,Li Changle. A Novel AMC Scheme with Alterable SNR Threshold Intervals based on Cross-layer Design in WiMAX[J]. China Communications, 2010, 7(2): 100-108 |
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| Authors: | Chen Ting Li Jiandong Li Changle |
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| Affiliation: | State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an 710071, China |
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| Abstract: | IEEE 802.16 standards defi ne manifold modulation and coding modes, and could use the Adaptive Modulation and Coding (AMC) scheme according to Channel State Information (CSI). This paper proposes a novel AMC scheme with alterable Signal-to-Noise Ratio (SNR) threshold intervals which could apply to Worldwide Interoperability for Microwave Access (WiMAX). In the scheme, each modulation-coding mode is not only decided by CSI from physical (PHY) layer, but also related to an important parameter of the quality o... |
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| Keywords: | WiMAX cross-layer design adaptive modulation and coding packet error rate |
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