Research Article
A Novel Multi-User Quantum Communication System Using CDMA and Quantum Fourier Transform
@INPROCEEDINGS{10.1007/978-3-030-79276-3_7, author={M. Anand and Pawan Tej Kolusu}, title={A Novel Multi-User Quantum Communication System Using CDMA and Quantum Fourier Transform}, proceedings={Ubiquitous Communications and Network Computing. 4th EAI International Conference, UBICNET 2021, Virtual Event, March 2021, Proceedings}, proceedings_a={UBICNET}, year={2021}, month={7}, keywords={Quantum computing Multi-user quantum communication Quantum circuits Quantum internet CDMA Quantum Fourier transform}, doi={10.1007/978-3-030-79276-3_7} }- M. Anand
Pawan Tej Kolusu
Year: 2021
A Novel Multi-User Quantum Communication System Using CDMA and Quantum Fourier Transform
UBICNET
Springer
DOI: 10.1007/978-3-030-79276-3_7
Abstract
Quantum Communication is an upcoming technology for the next generation communication network. Quantum Communication involves transmitting Quantum Bits (Qubits) instead of regular binary bits in the communication network. With absolute security guaranteed by laws of quantum physics, harnessing this emerging technology is necessary for securing future communication networks. In Quantum Communication, enabling Multi-User communication is needed to support multiple network topologies. There are many open challenges in Multi-User Quantum Communication like security between the transmitter or receiver and router, increasing the difficulty for eavesdroppers to guess the Qubit being exchanged across routers and enabling hierarchical network topology etc. In this paper, the idea is to use Code Division Multiple Access (CDMA) to ensure security between transmitter and transmit side router and also between receiver side router and receiver. The issue of eavesdroppers is solved by using Quantum Fourier Transform (QFT) which transforms incoming Qubits thereby securing them from eavesdroppers. QFT and the corresponding Inverse Quantum Fourier Transform (IQFT) makes the Qubit more secure in the network. QFT and IQFT is also scalable making it ideal for hierarchical network topology. This paper provides the mathematical proof of the security and scalability of the proposed Multi-User Quantum Communication System.
