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面向6G高铁移动场景的R10编码传输方案OA

R10 Coding-based Transmission Scheme for 6G High-speed Rail Mobile Scenarios

中文摘要英文摘要

6G时代越来越多的智能应用将在高铁中部署,需要高铁移动网络提供可靠和高效的传输服务.然而,受高速移动影响,车-地通信链路呈现快时变特性,采用传统的信道估计、反馈机制难以有效跟踪链路的快速时变,因此高铁移动网络亟需高效的前向纠错无反馈传输方案.由于R10编码兼顾了喷泉码和系统码的优点,将其引入高铁移动场景,提出了一种基于R10编码的高速移动车-地编码传输方案.采用该方案,发送端编码过程加入结构化冗余信息结合特定编码规则生成并发送任意数量编码符号,而接收端只需要收集一定数量编码符号结合结构化冗余信息即可更精准地恢复原数据,因此可实现更低的误码率.仿真实验表明,所提方案与传统无需反馈编码传输方案相比误比特率大大降低.以Turbo码为例,误比特率降低了约13%.

In the era of 6G,an increasing number of intelligent applications are being deployed on high-speed trains,necessitating reliable and efficient transmission services from mobile rail networks.However,due to the high-speed movement,the vehicle-to-ground communication links exhibit rapidly changing characteristics,making traditional channel estimation and feedback mechanisms inadequate for effectively tracking these fast variations.Consequently,there is an urgent need for an efficient forward error correction scheme without feedback in high-speed rail mobile networks.Given the advantages of R10 coding,which integrates the benefits of fountain codes and systematic codes,it has been introduced into high-speed rail mobile scenarios.A novel vehicle-to-ground coding transmission scheme based on R10 coding is proposed.In this scheme,the encoding process at the transmitter involves adding structured redundant information combined with specific coding rules to generate and send an arbitrary number of encoded symbols,while the receiver only needs to collect a certain number of encoded symbols along with structured redundant information to more accurately reconstruct the original data,thereby achieving a lower bit error rate.Simulation experiments indicate that the proposed scheme significantly reduces the bit error rate compared to traditional feedback-free coding transmission schemes.For instance,using Turbo codes as a reference,the bit error rate is reduced by approximately 13%.

高强;李业深;卢宇平;张煜;熊轲

北京交通大学计算机科学与技术学院,北京 100044国网能源研究院有限公司,北京 102200北京交通大学计算机科学与技术学院,北京 100044||北京交通大学高速铁路网络管理教育部工程研究中心,北京 100044

电子信息工程

R10码高铁移动通信喷泉码

R10 codehigh-speed rail mobile communicationfountain code

《移动通信》 2024 (005)

43-48 / 6

国家重点研发计划"6G无线覆盖扩展技术-异构多网融合覆盖扩展技术"(2020YFB1806903);国家自然科学基金资助项目"基于信息年龄的射频能量采集无线网络设计理论与方法"(62071033)

10.3969/j.issn.1006-1010.20240506-0002

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