期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

LDPC编码AMC-OFDM系统中的两种MCS选择准则 被引量：1

Two MCS Selection Rules in LDPC Coded AMC-OFDM System
下载PDF
导出
摘要 该文提出低密度奇偶校验(LDPC)码的自适应调制编码正交频分复用(AMC-OFDM)系统,并详述了该系统的原理。针对传统AMC系统中调制编码方案(MCS)的选择准则对性能提升有限的问题,提出可用于该AMC系统的两种MCS选择准则,根据接收到的所有单元信号的后验SNR确定相应自适应块采用的MCS。文章分析了这两种准则的吞吐量性能。仿真结果表明,把这两种准则应用于LDPC编码的AMC-OFDM系统中,能够带来比传统选择方法更高的吞吐量。 A Low Density Parity Check （LDPC） coded Adaptive Modulation and Coding-Orthogonal Frequency Division Multiplexing （AMC-OFDM） system is proposed, and its theory is given in detail, In order to solve the problem that the traditional Modulation and Coding Scheme （MCS） selecting rule improves the performance limitedly, two MCS selecting rules are proposed for the AMC system, in which MCS for an adaptive block is determined by the posteriori Signal-to-Noise-Ratio （SNR） of units in the block. Throughput performance is analyzed for the two rules. Simulation results show that they can bring to much higher throughput than the traditional method when applied in LDPC coded AMC-OFDM system,
作者 周明宇 李立华 路维佳 陶小峰 张平
机构地区 泛网无线通信教育部重点实验室(北京邮电大学)北京邮电大学无线新技术研究所
出处 《电子与信息学报》 EI CSCD 北大核心 2008年第7期1635-1639,共5页 Journal of Electronics & Information Technology
基金 国家自然科学基金(60496312) 2005~2006华为科技基金 北京邮电大学研究生创新项目资助课题
关键词 低密度奇偶校验码 自适应调制编码 正交频分复用 调制编码方案 后验信噪比 Low Density Parity Check （LDPC） code Adaptive Modulation and Coding （AMC） OFDM Modulation and Coding Scheme （MCS） A posteriori signal-to-noise-ratio
分类号 TN911.22 [电子电信—通信与信息系统]
  • 相关文献

参考文献10

  • 1Gallager R G. Low-Density Parity-Check Codes. [Dissertation], MA: MIT. Press, 1963.
  • 2Young C S, David F G, and Richardson T J, et al.. On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit. IEEE Communications Letters, 2001, 5(2):58-60.
  • 3Zhou Mingyu, Li Lihua, and Wen Na, et al. Performance of LDPC coded AOFDM under frequency-selective fading channel. International Conference on Communication, Circuits and Systems, Guilin, China, June 2006, 2: 861-865.
  • 4Keller T and Hanzo L. Adaptive modulation techniques for duplex OFDM transmission. IEEE Trans. on Vehicular Technology, 2000, 49(5): 1893-1906.
  • 5Keller T and Hanzo L. Adaptive multicarrier modulation: A convenient framework for time-frequency procession in wireless communications, in Proc. IEEE, 2000, 88(5):611-640.
  • 6Alamouti S M and Kallel S. Adaptive trellis-coded multiple-phase-shift keying for Rayleigh fading channels. IEEE Trans. on Communication, 1994, 42(6): 2305-2314.
  • 7Goldsmith A J and Ghee C S. Adaptive coded modulation for fading channels. IEEE Trans. on Communication, 1998, 46(5): 595-602.
  • 8Zhang Yuling, Yuan Dongfeng, and Zhang Haigang. Adaptive LDPC for Rayleigh fading channel, Proceedings of Ninth International Symposium on Computers and Communication, Alexandria, Egypt, 2004, 2: 651-656.
  • 93GPP. TS 45.005. Radio transmission and reception (Release 7). 2006.
  • 10IEEE Std 802.16e-2005 and IEEE Std 802.16-2004/Cor 1-2005 (Amendment and Corrigendum to IEEE Std 802.16-2004), IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands and Corrigendum 1, 2006.

同被引文献5

引证文献1

电子与信息学报
2008年 第7期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部