• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Communications, IET >Moment generating function-based pairwise error probability analysis of concatenated low density parity check codes with Alamouti coded multiple input multiple output-orthogonal frequency division multiplexing systems
【24h】

Moment generating function-based pairwise error probability analysis of concatenated low density parity check codes with Alamouti coded multiple input multiple output-orthogonal frequency division multiplexing systems

机译：基于矩生成函数的Alamouti编码多输入多输出正交频分复用系统的低密度奇偶校验码的成对错误概率分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Multiple input multiple output (MIMO) communication systems along with orthogonal frequency division multiplexing (OFDM) play a key role in designing next generation broadband wireless systems. Recently, low density parity check codes (LDPC) emerge as a good candidate for error correcting codes with capacity near Shannon's limit. In this study, the authors derive moment generating function- based closed-form upper bounds on the pairwise error probability for serially concatenated LDPC codes with Alamouti coded MIMO-OFDM systems. Also bit error rate expressions are derived for the mentioned concatenation scheme under spatially independent and correlated quasi-static Rayleigh, Rician and Nakagami fading channels. The authors' general framework considers the impact on coding and diversity gains because of spatial, time and frequency correlations, both individually and in combined form. In this study, the authors introduced the coexistence of spatial, time and frequency correlation channel models for proposed concatenation scheme and evaluate its effect on coding and diversity gain. Simulation results show that the proposed concatenation scheme is integrated in such a way that it takes advantage of every individual block. Further, the upper bounds derived in this study matches with the analytical results.
机译：多输入多输出（MIMO）通信系统以及正交频分复用（OFDM）在设计下一代宽带无线系统中起着关键作用。近来，低密度奇偶校验码（LDPC）成为容量接近Shannon极限的纠错码的理想选择。在这项研究中，作者针对使用Alamouti编码的MIMO-OFDM系统的串行级联LDPC码，基于成对误差概率导出了基于矩生成函数的闭式上限。同样，在空间独立和相关的准静态瑞利，Rician和Nakagami衰落信道下，针对上述级联方案导出了误码率表达式。作者的总体框架考虑了空间，时间和频率相关性（无论是单独还是组合形式）对编码和分集增益的影响。在这项研究中，作者介绍了空间，时间和频率相关信道模型的共存，以提出所建议的级联方案，并评估了其对编码和分集增益的影响。仿真结果表明，所提出的级联方案已被集成，从而可以利用每个单独的块。此外，本研究得出的上限与分析结果相符。

著录项

  • 来源
    《Communications, IET》 |2014年第3期|399-412|共14页
  • 作者

    Gupta B.; Saini D.S.;

  • 作者单位

    Dept. of Electron. & Commun. Eng., Jaypee Univ. of Inf. Technol., Solan, India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号