基于纠缠交换协议的令牌环局域网络传输模型

A Transmission Model of LAN of Token-Ring Based on Quantum Entanglement Swapping Protocol

针对多节点在局域网中的量子保密通信,建立了一种基于纠缠交换协议的令牌环局域网络传输模型。该模型结合纠缠交换协议,通过引入令牌环原理,进而使得量子无线基站可以在确定的时隙内分发纠缠资源给2个节点,进行无冲突通信。分析了网络的性能,推导得到了网络信息吞吐率与量子隐形传态成功概率和信道纠缠度之间的关系,通过MATLAB仿真实验对吞吐率的数值进行了分析,证明该模型的可行性,结果表明:提高通信双方建立纠缠资源、Bell态测量及成功接收测量信息的概率以及缩短信息的传输时间和优化信道的质量提高信道的纠缠度,可以增加网络的吞吐率,能有效满足量子通信的保密需求,对该领域的后续研究具有一定的参考价值。

A token-ring local area network transmission model based on entanglement swapping protocol is established for multiple user quantum communication over LAN.This model with entanglement swapping protocol utilizes the token-ring principle to distribute the entanglement resources onto two nodes in a determined time interval without conflict.This paper analyzes the transmission performance of the two sides establishing entanglement resources,and derives the relationship between network throughput and quantum teleportation and entanglement.The simulation results from MATLAB show that the model enables to achieve Bell state measurement,successfully receive measurement result,reduce transmission time and improve the channel entanglement to optimize signal path.Simultaneously,the method can improve the network throughput rate effectively and meet the needs of the security of quantum communication,and has a certain reference value for the follow-up study in this field.