| 联合自适应调制编码与ARQ的跨层设计 |
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| 引用本文： | 曾端阳,宋荣方.联合自适应调制编码与ARQ的跨层设计[J].无线通信技术,2007,16(2):1-6. |
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| 作者姓名： | 曾端阳 宋荣方 |
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| 作者单位： | 南京邮电大学通信工程系,南京,210003 |
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| 基金项目： | 国家自然科学基金;国家重点实验室基金 |
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| 摘 要： | 为了提高无线系统数据速率,目前广泛地采用物理层自适应调制编码(AMC)和链路层自动重发请求(ARQ)协议相结合的跨层设计,这种设计方法能大大提高系统频谱利用率。本文在瑞利衰落信道模型下,在给定包时延和丢包率的情况下,推导出了联合AMC和ARQ的跨层设计频谱利用率的公式。同时也与纯AMC和纯ARQ的情况作了比较。
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| 关 键 词： | 自适应调制编码 自动重发请求 跨层设计 频谱利用率 |
| 文章编号： | 1003-8329(2007)02-0001-06 |
| 修稿时间： | 2006年11月15 |
Cross-layer Design in Combining of Adaptive Modulation and Coding with Truncated ARQ |
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| ZENG Duan-yang,SONG Rong-fang.Cross-layer Design in Combining of Adaptive Modulation and Coding with Truncated ARQ[J].Wireless Communication Technology,2007,16(2):1-6. |
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| Authors: | ZENG Duan-yang SONG Rong-fang |
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| Abstract: | The cross-layer design in combining of adaptive modulation and coding with truncated ARQ is now extensively adopted to enhance data rate in wireless communication systems,which increases spectral efficiency greatly.In this paper,a closed-form spectral efficiency expression is derived for combining of adaptive modulation and coding with truncated ARQ,under prescribed packet delay and probability of packet loss over Rayleigh fading channels.And it is also compared with that in the situation of AMC-only and ARQ-only. |
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| Keywords: | adaptive modulation and coding(AMC) automatic repeat request(ARQ) cross-layer design spectral efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
