Cayley差分酉空时码在多输入多输出电力线通信中的应用

丁家昕; 倪梁方; 王熠; 戴慧洁

doi:10.11959/j.issn.1000-0801.2019194

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Cayley差分酉空时码在多输入多输出电力线通信中的应用

研究与开发 | 更新时间：2024-06-05

- Cayley差分酉空时码在多输入多输出电力线通信中的应用
- Application of cayley differential unitary space-time code in multiple-input multiple-output power line communication
- 电信科学 2019年35卷第8期页码：97-103
- 作者机构：
  
  1. 国家无线电监测中心，北京 100037
  2. 安徽工业大学电气与信息工程学院，安徽马鞍山 243032
- 作者简介：
  
  [ "丁家昕（1975- ），男，博士，国家无线电监测中心高级工程师，享受国务院政府特殊津贴，主要研究方向为频谱工程、频谱管理等。" ]
  [ "倪梁方（1965- ），男，博士，安徽工业大学电气与信息工程学院教授，主要研究方向为基于MIMO-OFDM和无线Ad Hoc网络的网络编码、空时编码、信号检测算法和量子进化算法。" ]
  [ "王熠（1990- ），女，安徽工业大学电气与信息工程学院工程师，主要研究方向为空时编码、通信信号处理。" ]
  [ "戴慧洁（1979- ），女，安徽工业大学电气与信息工程学院讲师，主要研究方向为网络编码、通信信号处理。" ]
- 基金信息：
  
  安徽省高等学校自然科学研究重点项目;The Key Programs of the Natural Science Research of Universities of Anhui Province(KJ2015A011);安徽省教育科学研究重点项目;The Key Programs of the Educational Science Research of Anhui Province
- DOI：10.11959/j.issn.1000-0801.2019194
  中图分类号： TN913
- 网络出版日期：2019-08，
  
  纸质出版日期：2019-08-20
- 稿件说明：
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丁家昕, 倪梁方, 王熠, 等. Cayley差分酉空时码在多输入多输出电力线通信中的应用[J]. 电信科学, 2019,35(8):97-103.

Jiaxin DING, Liangfang NI, Yi WANG, et al. Application of cayley differential unitary space-time code in multiple-input multiple-output power line communication[J]. Telecommunications science, 2019, 35(8): 97-103.
丁家昕, 倪梁方, 王熠, 等. Cayley差分酉空时码在多输入多输出电力线通信中的应用[J]. 电信科学, 2019,35(8):97-103. DOI： 10.11959/j.issn.1000-0801.2019194.

Jiaxin DING, Liangfang NI, Yi WANG, et al. Application of cayley differential unitary space-time code in multiple-input multiple-output power line communication[J]. Telecommunications science, 2019, 35(8): 97-103. DOI： 10.11959/j.issn.1000-0801.2019194.

摘要

提出了将 Cayley差分酉空时码应用于多输入多输出电力线通信系统的方案。发射端，首先将待编码的所有子流映射为斜Hermit矩阵，然后将复斜Hermit矩阵张成的线性空间映射为高度非线性Stiefel流形表征的各向同性的酉矩阵星座，并借此以差分模式通过一个分块衰落的多输入多输出电力线信道传输信号；接收端，基于表征数据流的Cauchy随机变量的无约束解，诱导出发送信号的近似线性最大似然估计。仿真结果表明，在高信噪比的条件下，本文提出的方案可实现高速率电力线数据通信。

Abstract

The application of Cayley differential unitary space-time code in MIMO power line communication system was studied.The linear space of complex skew-Hermitian matrices was mapped to isotropic unitary matrix constellations represented by highly non-linear Stiefel manifolds

by which signals were transmitted through a block fading multiple input multiple output power line channel with in a differential mode.Finally

based on the unconstrained solution of the Cauchy random by which data streams were represented

the approximate linear maximum likelihood estimation of the transmitted signal was induced.Simulation results show that although the performance of the proposed scheme is slightly lower than that of the system based on orthogonal differential space-time code in terms of bit error rate and diversity gain

it can ensure high-speed and reliable communication at higher signal-to-noise ratios

and is suitable for multi-input multi-output power line communication systems requiring high-speed data transmission.

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references

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