量子光学学报, 2019, 25 (1): 22, 网络出版: 2019-04-05   

基于最大权重值纠缠分发的量子无线多跳网络路由协议研究

Research on Quantum Wireless Multi-hop Network Routing Protocol Based on Maximum Weights Entanglement Distribution
作者单位
1 西安邮电大学 通信与信息工程学院,西安 710121
2 西北工业大学 电子信息学院,西安 710072
3 西安电子科技大学 综合业务网国家重点实验室,西安 710071
摘要
针对量子节点间建立链路所消耗纠缠资源的差异,使用权重数值来量化现实环境对各个量子节点的影响,并根据权值确定纠缠粒子的分发。在此基础上提出一种针对量子无线多跳网络的路由协议,该协议以纠缠利用率作为路由度量条件,通过基于最大权重值的纠缠粒子分发方式和并行纠缠交换建立量子信道,实现量子态的传输。仿真分析表明,使用该路由协议可以精确找出网络中符合度量条件的量子链路,同时该路由协议中使用并行纠缠交换的交换方式降低了量子态传输的时延,在节点数为15时,并行交换比串行交换的平均时延降低了50%,而且随着链路中节点数的增加,两者的时延差异将会越来越大。为方便分析各仿真节点的权重值均设置为1至15的随机整数,通过对5节点的链路进行多次仿真发现使用基于最大权重值纠缠粒子分发方式能够传送的量子态的平均个数为14,基于串行的分发方式能够传送的量子态的平均个数为7。
Abstract
According to the difference of entanglement resources consumed by quantum nodes in different environments,the weights are used to quantify the influence of real environment on each quantum node,and the distribution of entangled particles is determined according to the weights.At the same time,a routing protocol for quantum wireless multi-hop networks is proposed based on weights.The protocol takes the utilization ratio of entangled particles as the routing metric,and establishes quantum channel through the distribution of entangled particles based on the maximum weights and the parallel entanglement exchange to realize the transmission of quantum states.The simulation results show that the proposed routing protocol can be used to find out the quantum links in the network which meet the measurement conditions,and the parallel entanglement swapping is used in the routing protocol to reduce the delay of quantum state transmission.When the number of nodes is 15,the average delay of parallel switching is 50% lower than that of serial switching,and with the increase of the number of nodes in the link,the delay between the two will become larger and larger.The weights of the simulation nodes are all random integers of 1 to 15.Through several simulations on the links of 5 nodes,it is found that the average number of quantum states that can be transmitted by using the maximum weights entangled particle distribution method is 14,and the average number of quantum states that can be transmitted by the serial distribution method is 7.The routing scheme based on the maximum weights of entangled particle distribution can save entangled resources,maintain the load balance of the network,and prolong the service life of the link in the network.

聂敏, 雷鹏, 杨光, 张美玲, 孙爱晶, 裴昌幸. 基于最大权重值纠缠分发的量子无线多跳网络路由协议研究[J]. 量子光学学报, 2019, 25(1): 22. NIE Min, LEI Peng, YANG Guang, ZHANG Mei-ling, SUN Ai-jing, PEI Chang-xing. Research on Quantum Wireless Multi-hop Network Routing Protocol Based on Maximum Weights Entanglement Distribution[J]. Acta Sinica Quantum Optica, 2019, 25(1): 22.

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