...
首页> 外文期刊>Communications Letters, IEEE >Modulation Scheme Based on Precoder Matrix for MIMO Optical Wireless Communication Systems
【24h】

Modulation Scheme Based on Precoder Matrix for MIMO Optical Wireless Communication Systems

机译:基于预编码器矩阵的MIMO光无线通信系统调制方案

获取原文
获取原文并翻译 | 示例
           

摘要

A modulation scheme for multiple-input multiple-output (MIMO) optical wireless systems that employ intensity modulation (IM) is proposed. This scheme, called precoder matrix modulation (PMM), exploits the properties of MIMO optical wireless communications to translate the spatial dimension into the constellation parameters by using a `precoder matrix'. The transmitted signals in PMM are guaranteed to be nonnegative, as required in IM optical wireless communications. Existing schemes such as pulse-amplitude modulation could be used in such systems, but the proposed scheme has a much better performance. The constellation size of PMM can be flexibly increased, mitigating the bandwidth shortage issue due to the limitation of light emitting diodes (the transmitters).
机译:提出了一种用于采用强度调制(IM)的多输入多输出(MIMO)光无线系统的调制方案。这种称为预编码器矩阵调制(PMM)的方案利用MIMO光无线通信的特性,通过使用“预编码器矩阵”将空间维度转换为星座参数。根据IM光学无线通信的要求,确保PMM中发送的信号是非负的。诸如脉冲幅度调制的现有方案可以在这种系统中使用,但是所提出的方案具有更好的性能。可以灵活地增加PMM的星座图大小,从而减轻了由于发光二极管(发射器)的限制而引起的带宽不足问题。

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