Routing protocol for wireless quantum multi-hop Mesh backbone network based on partially entangled GHZ state

TL;DR

This paper proposes a quantum routing protocol for wireless mesh networks using partially entangled GHZ states, enabling efficient multi-hop quantum teleportation with reduced delay and packet overhead.

Contribution

It introduces a novel quantum routing protocol that simultaneously finds routes and establishes entanglement, improving efficiency over classical methods.

Findings

Quantum multi-hop teleportation is feasible with partially entangled GHZ states.

The protocol reduces total packet count and air interface delay.

Simulation confirms successful quantum teleportation over multiple hops.

Abstract

Quantum multi-hop teleportation is important in the field of quantum communication. In this study, we propose a quantum multi-hop communication model and a quantum routing protocol with multi-hop teleportation for wireless mesh backbone networks. Based on an analysis of quantum multi-hop protocols, a partially entangled Greenberger--Horne--Zeilinger (GHZ) state is selected as the quantum channel for the proposed protocol. Both quantum and classical wireless channels exist between two neighboring nodes along the route. With the proposed routing protocol, quantum information can be transmitted hop by hop from the source node to the destination node. Based on multi-hop teleportation based on the partially entangled GHZ state, a quantum route established with the minimum number of hops. The difference between our routing protocol and the classical one is that in the former, the processes used to find a quantum route and establish quantum channel entanglement occur simultaneously. The Bell state measurement results of each hop are piggybacked to quantum route finding information. This method reduces the total number of packets and the magnitude of air interface delay. The deduction of the establishment of a quantum channel between source and destination is also presented here. The final success probability of quantum multi-hop teleportation in wireless mesh backbone networks was simulated and analyzed. Our research shows that quantum multi-hop teleportation in wireless mesh backbone networks through a partially entangled GHZ state is feasible.