• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of communication systems >An adaptive receiver of joint data and channel estimation for meteor burst communications
【24h】

An adaptive receiver of joint data and channel estimation for meteor burst communications

机译：流星突发通信的联合数据和信道估计的自适应接收机

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

In view of the characteristics of the meteor burst channel, the variable rate data transmission should be adopted to improve the system average throughput, which results in channel tracing and equalization problems at the receiver. Although the joint data and channel estimation of maximum likelihood sequence detection performing the principle of per-survivor processing (PSP) is considered as an optimal detection scheme, its great computational complexity is a major problem and can hardly agree with the decreasing of the meteor channel. Based on the estimation of the system parameters, an adaptive state reduction of the PSP (ASRP) algorithm with only a few states in the trellis diagram is employed, while these states are chosen by the time-varying threshold according to the exponential decay of meteor channels. It is shown that, ASRP can make a good tradeoff between the performance and the computational complexity, and provides reliable data transmission for adaptive modulation and coding of the meteor burst communication system. Computer simulation results and performance analysis are also included to support our developments. Copyright
机译：鉴于流星爆发信道的特性，应采用可变速率数据传输来提高系统平均吞吐量，这会导致接收机出现信道跟踪和均衡问题。尽管执行每个幸存者处理（PSP）原理的最大似然序列检测的联合数据和通道估计被认为是一种最佳检测方案，但其巨大的计算复杂性是一个主要问题，很难与流星通道的减少相一致。 。基于系统参数的估计，采用网格图中只包含少数几个状态的PSP（ASRP）算法的自适应状态缩减，同时根据流星的指数衰减通过时变阈值选择这些状态渠道。结果表明，ASRP可以在性能和计算复杂度之间做出良好的权衡，并为流星爆发通信系统的自适应调制和编码提供可靠的数据传输。还包括计算机仿真结果和性能分析，以支持我们的发展。版权

著录项

  • 来源
    《International journal of communication systems》 |2011年第6期|p.745-760|共16页
  • 作者

    Jueping Cai; Zan Li; Xiaojun Chen; Benjian Hao;

  • 作者单位

    School of Microelectronics, Xidian University, Xi'an 710071, People's Republic of China;

    State Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering,Xidian University, Xi'an 710071, People's Republic of China;

    State Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering,Xidian University, Xi'an 710071, People's Republic of China;

    State Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering,Xidian University, Xi'an 710071, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    meteor burst communication; MLSD; adaptive modulation and coding; per-survivor processing;

    机译：流星爆发通讯;MLSD;自适应调制和编码;每个幸存者处理;

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