异步卫星协同通信系统中的双采样差分空时编码方案

章坚武; 屠贺嘉琦

doi:10.11959/j.issn.1000-0801.2017309

您当前的位置：

首页 >

文章列表页 >

异步卫星协同通信系统中的双采样差分空时编码方案

研究与开发 | 更新时间：2024-06-05

- 异步卫星协同通信系统中的双采样差分空时编码方案
- Dual-sample differential space-time coding scheme in asynchronous satellite cooperative communication system
- 电信科学 2017年33卷第11期页码：9-16
- 作者机构：
- 作者简介：
  
  [ "章坚武（1961-），男，杭州电子科技大学通信工程学院教授、博士生导师，主要研究方向为移动通信系统、多媒体通信技术、网络安全等。" ]
  [ "屠贺嘉琦（1992-），男，杭州电子科技大学通信工程学院硕士生，主要研究方向为移动通信系统。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61471152);浙江省自然科学基金资助项目;Natural Science Foundation of Zhejiang Province of China(LZ14F010003)
- DOI：10.11959/j.issn.1000-0801.2017309
  中图分类号： TN927
- 网络出版日期：2017-11，
  
  纸质出版日期：2017-11-20
- 稿件说明：
移动端阅览
章坚武, 屠贺嘉琦. 异步卫星协同通信系统中的双采样差分空时编码方案[J]. 电信科学, 2017,33(11):9-16.

Jianwu ZHANG, Hejiaqi TU. Dual-sample differential space-time coding scheme in asynchronous satellite cooperative communication system[J]. Telecommunications science, 2017, 33(11): 9-16.
章坚武, 屠贺嘉琦. 异步卫星协同通信系统中的双采样差分空时编码方案[J]. 电信科学, 2017,33(11):9-16. DOI： 10.11959/j.issn.1000-0801.2017309.

Jianwu ZHANG, Hejiaqi TU. Dual-sample differential space-time coding scheme in asynchronous satellite cooperative communication system[J]. Telecommunications science, 2017, 33(11): 9-16. DOI： 10.11959/j.issn.1000-0801.2017309.

摘要

针对双卫星中继协作通信系统中存在非符号周期整数倍的时延差问题，提出了一种双采样的差分空时正交频分复用（D-OFDM2）方案。所提方案在卫星信道条件未知的情况下，基于具有时延容忍的 D-OFDM编码，在接收端构造了一种双采样方法。该方法在以符号速率采样的同时，对当前主瓣大于相邻旁瓣的区间内增加一次采样，并将两次采样结果等增益合并。仿真结果表明，在系统时延差为非符号周期整数倍的情况下，该方法较单采样方法能获得更高的接收信噪比，同时改善了系统误码性能。

Abstract

Focusing on asynchronization in relay communication system over satellite fading channels

a dual-sampling differential space-time orthogonal frequency division multiplex（D-OFDM2）coding scheme was proposed.The proposed scheme constructed a dual-sampling method at the receiver based on the D-OFDM coding with delay tolerance when the satellite channel condition was unknown.The method added another sample to the current main lobe interval and equal gain merge the two sampling results.Comparing with the traditional scheme when the fractional delay is present

the D-OFDM2 scheme can obtain higher signal-to-noise ratio than single sampling method

and improves the system error performance.

关键词

Keywords

references

李凤华 , 殷丽华 , 吴巍 , 等 . 天地一体化信息网络安全保障技术研究进展及发展趋势 [J ] . 通信学报 , 2016 , 37 ( 11 ): 156 - 168 .

LI F H , YIN L H , WU W , et al . Research status and development trends of security assurance for space-ground integration information network [J ] . Journal on Communications , 2016 , 37 ( 11 ): 156 - 168 .

易克初 , 李怡 , 孙晨华 , 等 . 卫星通信的近期发展与前景展望 [J ] . 通信学报 , 2015 , 36 ( 6 ): 157 - 172 .

YI K C , LI Y , SUN C H , et al . Recent development and its prospect of satellite communications [J ] . Journal on Communications , 2015 , 36 ( 6 ): 157 - 172 .

李斗 , 项海格 . LEO/MEO卫星通信系统发展展望 [J ] . 电信科学 , 2003 , 19 ( 2 ): 48 - 51 .

LI D , XIANG H G . The Development of LEO/MEO Satellite Communication Systems [J ] . Telecommunications Science , 2003 , 19 ( 2 ): 48 - 51 .

蒋涉权 , 王晶 , 彭超 . MIMO 系统中空时编码性能仿真和分析 [J ] . 电信科学 , 2015 , 31 ( 2 ): 29 - 35 .

JIANG S Q , WANG J , PENG C . Simulation and analysis on performance of space-time coding in MIMO [J ] . Telecommunications Science , 2015 , 31 ( 2 ): 29 - 35 .

李娟 , 邱晓红 . 分层空时编码及应用研究 [J ] . 电信科学 , 2011 , 27 ( 4 ): 91 - 95 .

LI J , QIU X H . Research on layered space-time coding technology [J ] . Telecommunications Science , 2011 , 27 ( 4 ): 91 - 95 .

JING Y , HASSIBI B . Distributed space-time coding in wireless relay networks [J ] . IEEE Transactions on Wireless Communications , 2007 , 5 ( 12 ): 3524 - 3536 .

ANGHEL P A , KAVEH M . On the performance of distributed space-time coding systems with one and two non-regenerative relays [J ] . IEEE Transactions on Wireless Communications , 2006 , 5 ( 3 ): 682 - 692 .

JING Y , JAFARKHANI H . Distributed differential space-time coding for wireless relay networks [J ] . IEEE Transactions on Communications , 2008 , 56 ( 7 ): 1092 - 1100 .

DAMEN M O , HAMMONS A R . Delay-tolerant distributed-TAST codes for cooperative diversity [J ] . IEEE Transactions on Information Theory , 2007 , 53 ( 10 ): 3755 - 3773 .

LIU Y , ZHANG W , CHING P C . Full-diversity distributed space-time codes with an efficient ML decoder for asynchronous cooperative communications [C ] // IEEE International Conference on Acoustics,Speech and Signal Processing,May 26-31,2013,Vancouver,BC,Canada . New Jersey:IEEE Press , 2013 : 5011 - 5015 .

LIU Y , ZHANG W , CHING P C . Time-reversal space-time codes in asynchronous two-way relay networks [J ] . IEEE Transactions on Wireless Communications , 2016 , 15 ( 3 ): 1729 - 1741 .

章坚武 , 章谦骅 . 卫星通信中基于扩频技术的异步差分空时协同编码研究 [J ] . 空间科学学报 , 2015 , 35 ( 5 ): 634 - 640 .

ZHANG J W , ZHANG Q H . Asynchronous differential space-time block codes based on spreading techniques over satellite communication [J ] . Chinese Journal of Space Science , 2015 , 35 ( 5 ): 634 - 640 .

LI Z , XIA X G . An Alamouti coded OFDM transmission for cooperative systems robust to both timing errors and frequency offsets [J ] . IEEE Transactions on Wireless Communications , 2008 , 7 ( 5 ): 1839 - 1844 .

RAJAN G S , RAJAN B S . OFDM based distributed space time coding for asynchronous relay networks [C ] // IEEE International Conference on Communications,May 19-23,2008,Beijing,China . New Jersey:IEEE Press , 2008 : 1118 - 1122 .

LEE Y , KANG S G , CHONG D , et al . An alamouti coding scheme for asynchronous cooperative communication systems over frequency selective fading channels [J ] . 2011 , 4 ( 4 ): 1 - 5 .

BARGHI S , JAFARKHANI H . Exploiting asynchronous amplify-and-forward relays to enhance the performance of IEEE 802.11 networks [J ] . IEEE/ACM Transactions on Networking , 2015 , 23 ( 2 ): 479 - 490 .

AVENDI M R , JAFARKHANI H . Differential distributed space-time coding with imperfect synchronization in frequency-selective channels [J ] . IEEE Transactions on Wireless Communications , 2015 , 14 ( 4 ): 1811 - 1822 .

XU W , WANG Q , LIN M . Distributed space-time coding scheme with differential detection and power allocation for cooperative relay network [J ] . Telecommunication Systems , 2017 : 1 - 15 .

浏览量

592

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

面向空天地海一体化的卫星通信关键技术研究

AI技术在卫星通信/互联网领域的应用综述

面向6G的卫星通信网络架构展望

面向全球能源互联网的天空地协同卫星通信网络架构

关于天地一体化信息网络典型应用示范的思考