基于量子远程传态的无线自组织量子通信网络路由协议  

Routing protocol for wireless ad hoc quantum communication network based on quantum teleportation

作　　者：余旭涛[1] 徐进[2] 张在琛[3] 

机构地区：[1]东南大学,毫米波国家重点实验室,南京210096 [2]东南大学物理系,南京210096 [3]东南大学,移动通信国家重点实验室,南京210096

出　　处：《物理学报》2012年第22期50-57,共8页Acta Physica Sinica

基　　金：国家自然科学基金青年科学基金(批准号:60902010);东南大学移动通信国家重点实验室自主研究基金(批准号:2012A03)资助的课题~~

摘　　要：针对复杂结构的无线量子通信网络,提出了无线自组织量子通信网络概念并设计其路由协议.该路由协议为按需路由协议,路由度量基于相邻节点间的纠缠粒子对数目.需要发送携带信息的量子态的节点发起路由请求和建立过程,由目的节点根据路由度量选择路径.目的节点选择路径后,沿所选路径发送路由应答信息至源节点并通知路径中其他节点.信息传输过程中,若所选路径中相邻节点间无线信道或者量子信道中断,将重新发起一个路由发现过程,建立新路由.路径中节点收到路由应答信息后,利用纠缠交换和两端逼近方法。A concept of wireless ad hoc quantum communication network is proposed and a routing protocol is designed for wireless quantum communicaiton network with complex structure. The routing protocol is on-demand and the routing metric is based on the number of entangled particle pairs. The node that wants to send information carried by quantum state can initiate a route request and establishment procedure. The destination node chooses path by the routing metric and sends route reply message along the selected path. During the information transmission, if the quantum channel or the wirless channel between any neighbors in the selected path is broken, a route discovery process is reinitiated to set up a new route. Nodes in the selected path use a both-end approximation algorithm to establish a quantum channel. After the quantum channel is established, the quantum state is transferred by quantum teleportation and the information transfer between any two nodes in wireless ad hoc quantum communication network is finished.

关 键 词：自组织网络 量子通信网络 量子远程传态 纠缠交换 

分 类 号：TN929.5[电子电信—通信与信息系统] O413[电子电信—信息与通信工程]