• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2011 the 14th International Symposium on Wireless Personal Multimedia Communications : Communications, Networking and Applications for the Internet of Things >Repetition time-switched transmit diversity as an alternative to Alamouti space-time coding for wireless communication systems
【24h】

Repetition time-switched transmit diversity as an alternative to Alamouti space-time coding for wireless communication systems

机译：重复时间切换发射分集可替代无线通信系统的Alamouti空时编码

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We present a simple transmit diversity technique, called repetition time-switched transmit diversity (R-TSTD), which is a modified version of the well-known time-switched transmit diversity (TSTD) algorithm. Throughout the paper, we focus on the scenario of a transmitter with nT = 2 antennas. The idea behind R-TSTD is to use only one antenna at a time while still ensuring that all constellation symbols are transmitted via both antennas. Thus, unlike the classical TSTD technique, R-TSTD does provide a transmit diversity effect similar to that achieved with space-time coding (STC) algorithms. The error performance of the proposed R-TSTD system is compared to that of the Alamouti STC scheme via Monte Carlo computer simulations. It is shown that, in the absence of any outer error-correcting code, Alamouti STC slightly outperforms R-TSTD. However, when a near-capacity channel code is employed as an outer code, the error performance achieved using R-TSTD is significantly better than that obtained with Alamouti STC, provided that the desired spectral efficiency is sufficiently low.
机译：我们提出了一种简单的发射分集技术，称为重复时间切换发射分集（R-TSTD），它是众所周知的时间切换发射分集（TSTD）算法的修改版本。在整篇论文中，我们重点介绍n T = 2个天线的发射机的情况。 R-TSTD背后的想法是一次只使用一根天线，同时仍确保所有星座符号都通过两根天线发送。因此，与传统的TSTD技术不同，R-TSTD确实提供了与空时编码（STC）算法相似的发射分集效果。通过蒙特卡洛计算机仿真，将所提出的R-TSTD系统的错误性能与Alamouti STC方案的错误性能进行了比较。结果表明，在没有任何外部纠错码的情况下，Alamouti STC的性能略优于R-TSTD。但是，当将接近容量的信道代码用作外部代码时，如果所需的频谱效率足够低，则使用R-TSTD实现的错误性能将明显优于使用Alamouti STC获得的错误性能。

著录项

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