基于数据链路层的选择重传协议  

Protocol of Selective Repeat Based on the Data Link Layer

作　　者：陈玺[1] 周小清[1] 赵晗[1] 张沛[1] 

机构地区：[1]吉首大学物理与机电工程学院,湖南吉首416000

出　　处：《吉首大学学报（自然科学版）》2013年第2期46-49,共4页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省自然科学基金资助项目(11JJ3003);湖南省科技计划研究项目(2010FJ3081)

摘　　要：在量子网络的2个站点间通信时,数据帧中出现误码时就要重新发送,这样虽然保证数据的正确性,却增大了通信的压力.为了减轻信道压力并且提高选择重传协议的传输效率,从量子态的复制,隐形传送的过程入手,对现有的选择重传协议进行了分析,并引入了缓存,改进了数据链路层的选择重传协议.对改进前后协议的效率和信道的利用率做了比较,为以后寻求更加高效快捷的通信方式提供依据.Qubits must be sent again when some qubit errors occur in the data frame in the quantum net- work between the two communicate sites. Although this repeat guarantees the data accuracy, the pres- sure of the communication channel is increased. In order to reduce the pressure of the channel and im- prove the efficiency of selective repeat protocol, the authors analyze the existing selective repeat protocol from the process of quantum states＇ replication and teleportation. So the cache of the channel is intro- duced and the selective repeat protocol of the data link layer is improved. Furthermore,the authors com- pare the efficiency of protocol and the utilization ratio of channel with previous scheme and provide a ref- erence for seeking more effective and efficient communication means.

关 键 词：量子通信 数据链路层 协议 传输效率 

分 类 号：TP393.5[自动化与计算机技术—计算机应用技术]