Information transmission method for wireless quantum communication network

Abstract

The invention discloses an information transmission method for a wireless quantum communication network. The method comprises the following steps that: step 1, a source node sends a route request message; step 2, an intermediate node processes the route request message; step 3, after receiving the route request message, a destination node processes the message, selects a route and sends a route response message; step 4, the intermediate node updates and forwards the route response message and performs entanglement swapping at the same time, wherein a measurement result is carried in the route response message; step 5, the source node creates a route according to the route response message; and step 6, after receiving a route response message or transmission response message package, the source node determines whether message transmission between the source node and the destination node is ended. The information transmission method for the wireless quantum communication network provided by the invention has the beneficial effect that as the measurement result of entanglement swapping is transmitted along with the route response message package or the transmission response message package, time delay of information transmission is reduced, and wireless transmission overhead required for one-time transmission of quantum information can be significantly reduced, the probability of data package collision in a wireless channel is significantly reduced.

Description

technical field [0001] The invention relates to wireless communication and information dissemination technology, in particular to information transmission technology for wireless quantum communication network. Background technique [0002] At present, wireless communication networks have been widely used. Nodes in the network transmit information wirelessly, which is easy to expand the network and has a high degree of flexibility. Security is a major problem facing wireless networks. Combining wireless networks with quantum information technology, using the principle of quantum uncertainty and non-cloning, can ensure the security of the network, and at the same time increase the information capacity, bringing a A flexible, high-speed, secure, and high-capacity wireless communication method. For the wireless quantum communication network, the information to be transmitted can be carried in the quantum state, using quantum remote state transfer and entanglement exchange techn...

AI Technical Summary

Problems solved by technology

Moreover, the research work on wireless quantum communication networks is currently mainly concentrated in the field of network security, and there are few studies on network structure and protocols.

In the document "Quantum Communication for Wireless Wide-Area Networks" (Quantum Communication for Wireless Wide-Area Networks), Chen Cheng et al. proposed a quantum routing algorithm in a wireless communication network in the quantum domain, and studied the transfer of quantum states after the routing has been established. , this is the first research on wireless communication problems in the quantum field. The algorithm mainly uses quantum teleportation and entanglement exchange to construct quantum relays and quantum pair bridges to realize the transfer of quantum states in quantum wireless networks. The studied network The structure is a hierarchical network structure and does not involve specific studies on routing, establishment and maintenance

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