Semi-TCP与ARQ联合的端到端可靠传输方法  

Semi-TCP and ARQ combined end-to-end reliable transmission method

作　　者：易昌华 周亮 张绍凤 Yi Changhua;Zhou Liang;Zhang Shaofeng(Modern Information and Educational Technology Center,Shanghai Ocean University,Shanghai 201306,China;Shanghai Jiaotong University Affiliated Sixth People's Hospital,Shanghai 201306,China;College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海海洋大学现代信息与教育技术中心,上海201306 [2]上海交通大学附属第六人民医院,上海201306 [3]上海海事大学信息工程学院,上海201306

出　　处：《电子技术应用》2023年第9期86-89,共4页Application of Electronic Technique

基　　金：国家自然科学基金(61472237)。

摘　　要：在无线自组织网络中,数据传输受干扰较多,信道不稳定,因此传统的TCP协议并不能满足在这种复杂环境下的通信要求,节点间的自动重传请求协议(ARQ)重传增加,会导致节点的缓存占用率很大,整体传输性能降低。为了解决该问题,采用Semi-TCP协议与ARQ协议相结合,在不改变原有TCP架构的基础上将拥塞控制下放到链路层,改变链路层ARQ的纠错能力,提高信道的利用率。在Exata平台上进行了仿真,实验证明在无线多跳网络中,该方法能有效提高网络传输性能。In the wireless multi hop network environment,the data transmission is subject to more interference and the channel is unstable.Therefore,the traditional TCP protocol can not meet the communication requirements in this complex environment.The increase of ARQ retransmission between nodes will lead to a large cache occupancy rate and a low overall transmission performance.In order to solve this problem,Semi-TCP protocol and ARQ protocol are combined to lower congestion control to the link layer without changing the original TCP architecture,change the error correction capability of ARQ in the link layer,and improve the channel utilization.The simulation on Exata platform shows that this method can effectively improve the network transmission performance in wireless multi hop networks.

关 键 词：无线多跳网络 传输层协议 缓存 节点 纠错 

分 类 号：TN915.03[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]