基于正交处理的网络编码方法及其性能分析

doi:10.3969/j.issn.1000-436x.2014.06.002

通信学报 ›› 2014, Vol. 35 ›› Issue (6): 8-14.doi: 10.3969/j.issn.1000-436x.2014.06.002

基于正交处理的网络编码方法及其性能分析

张祖凡^1,²,彭醇陵¹,杨静¹,景小荣^1,²

¹ 重庆邮电大学通信与信息工程学院，重庆 400065
² 重庆邮电大学移动通信技术重庆市重点实验室，重庆 400065

出版日期:2014-06-25 发布日期:2017-06-29
基金资助:
国家重大科学仪器设备开发专项;重庆市自然科学基金资助项目;长江学者和创新团队发展计划基金资助项目

Performance analysis of a network coding scheme based on orthogonal process

Zu-fan ZHANG^1,²,Chun-ling PENG¹,Jing YANG¹,Xiao-rong JING^1,²

¹ School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
² Chongqing Key Laboratory of Mobile Communication, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Online:2014-06-25 Published:2017-06-29
Supported by:
The National Key Scientific Instrument and Equipment Development Project of China;The Natural Science Foundation of Chongqing;The Program for Changjiang Scholars and Innova-tive Research Team in University

摘要/Abstract

摘要：

为有效传输多用户多中继网络信息，在线性网络编码的基础上给出一种基于正交处理的网络编码方法（NCOP, network coding based on orthogonal process），该编码方式结合正交低频子载波处理思想，将传输数据正交化，利用处理后数据正交性实时传输并解码需要用户数据，进一步降低系统中断概率，提高分集增益。理论分析了该编码方法的系统中断概率和平均误码率，分析和仿真结果表明在多用户协作网络的应用中，NCOP中断性能及误码性能均优于线性网络编码。

关键词: 多用户多中继协作网络, 正交处理, 网络编码, 中断概率, 平均误码率

Abstract:

Combining the orthogonal low-frequency subcarrier processing, a network coding scheme based on orthogonal process (NCOP) was proposed for effective transmission in multi-user multi-relay networks. It makes the data orthogonal before transmission,and decodes the data utilizing the characteristics of orthogonality, so that further reduces the system outage probability and develops the diversity order. The system outage performance and average bit error rate was ana-lyzed by theoretical analysis. Analysis and simulation results show that the system performance of the proposed NCOP outperforms linear network coding while applying in multi-user cooperative networks.

Key words: multi-user multi-relay cooperative networks, orthogonal process, network coding, outage probability, aver-age bit error rate

张祖凡,彭醇陵,杨静,景小荣. 基于正交处理的网络编码方法及其性能分析[J]. 通信学报, 2014, 35(6): 8-14.

Zu-fan ZHANG,Chun-ling PENG,Jing YANG,Xiao-rong JING. Performance analysis of a network coding scheme based on orthogonal process[J]. Journal on Communications, 2014, 35(6): 8-14.

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基于正交处理的网络编码方法及其性能分析

Performance analysis of a network coding scheme based on orthogonal process

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