IET Quantum Communication最新文献_第8页

Modelling and experimental testing of an optical synchronisation beacon designed for high-loss satellite quantum communication 为高损耗卫星量子通信设计的光学同步信标的建模和实验测试

IF 2.8

IET Quantum Communication Pub Date : 2023-09-06 DOI: 10.1049/qtc2.12071

Peide Zhang, David Lowndes, Milan Stefko, Daniel Oi, John Rarity

{"title":"Modelling and experimental testing of an optical synchronisation beacon designed for high-loss satellite quantum communication","authors":"Peide Zhang, David Lowndes, Milan Stefko, Daniel Oi, John Rarity","doi":"10.1049/qtc2.12071","DOIUrl":"10.1049/qtc2.12071","url":null,"abstract":"Long-distance free space quantum key distribution based on CubeSats can be used to establish global quantum secure communication networks, with potential commercial applications benefitting from the low cost of its design and launch. Detecting single-photon level optical pulses sent from space requires highly accurate and robust timing systems to pick out signals from the noise. For such high-loss applications, we envisage a low-repetition (sub-MHz) beacon laser emitting short (ns) high-peak-power pulses from which interpolated quantum signal arrival windows can be derived. We firstly study theoretically the effects of jitter on the efficiency of gating quantum signals including all important jitter sources, and then experimentally investigated it by changing the clock jitter, and the result shows that the greater jitter will reduce the gating rate of the signal. The experimental interpolation error is tested against loss under laboratory conditions giving results close to our model. We also found that the jitter introduced by the Doppler effect can be ignored with a repetition rate larger than 1 kHz. This model can be directly used for the performance analysis and optimisation of all quantum and non-quantum systems using similar synchronisation schemes over terrestrial free space or fibre.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"5 1","pages":"52-65"},"PeriodicalIF":2.8,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88640198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Key Distribution for V2I communications with software-defined networking 利用软件定义网络进行 V2I 通信的量子密钥分发

IF 2.8

IET Quantum Communication Pub Date : 2023-09-05 DOI: 10.1049/qtc2.12070

Alexandros Stavdas, Evangelos Kosmatos, Carsten Maple, Emilio Hugues-Salas, Gregory Epiphaniou, Daniel S. Fowler, Shadi A. Razak, Chris Matrakidis, Hu Yuan, Andrew Lord

{"title":"Quantum Key Distribution for V2I communications with software-defined networking","authors":"Alexandros Stavdas, Evangelos Kosmatos, Carsten Maple, Emilio Hugues-Salas, Gregory Epiphaniou, Daniel S. Fowler, Shadi A. Razak, Chris Matrakidis, Hu Yuan, Andrew Lord","doi":"10.1049/qtc2.12070","DOIUrl":"10.1049/qtc2.12070","url":null,"abstract":"The evolution of Connected and Autonomous Vehicles (CAVs) promises improvements in our travel experience and the potential to enhance road safety and reduce environmental impact. This will be utilising highly diverse traffic environments that enable several advanced mobility applications. A secure, efficient, reliable, and resilient communications infrastructure is required to support developments in these CAV systems. Next generation of telecommunication networks will seamlessly integrate terrestrial, satellite, and airborne networks into a single wireless system satisfying the requirements of trustworthy future transport systems. Given the increasing importance of CAVs, coupled with their attractiveness as a cyber-attack for threat agents (e.g., disruption of transportation systems by nation states), security is paramount. Future communications systems offer an opportunity to integrate Quantum Key Distribution (QKD) into vehicular environments, protecting against advances in quantum computation that render many of the classical algorithms that underpin Public Key Infrastructure obsolete. This paper proposes a method for the integration of QKD in V2I networks to enable secure data communication. Quantum Key Distribution is used in the end-to-end path of vehicle-to-infrastructure (V2I) networks. Furthermore, an overarching Software-Defined Network, with integrated QKD, is introduced. We have investigated the security performance of QKD in a V2I network over an urban environment.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"5 1","pages":"38-45"},"PeriodicalIF":2.8,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90179257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid-quantum approach for the optimal lockdown to stop the SARS-CoV-2 community spread subject to maximising nation economy globally 采用混合量子方法阻止 SARS-CoV-2 在全球范围内的传播，同时实现国家经济最大化

IF 2.8

IET Quantum Communication Pub Date : 2023-09-01 DOI: 10.1049/qtc2.12068

Kunal Das, Sahil Zaman, Alex Khan, Arindam Sadhu, Subhasree Bhattacharjee, Faisal Shah Khan, Bikramjit Sarkar

{"title":"Hybrid-quantum approach for the optimal lockdown to stop the SARS-CoV-2 community spread subject to maximising nation economy globally","authors":"Kunal Das, Sahil Zaman, Alex Khan, Arindam Sadhu, Subhasree Bhattacharjee, Faisal Shah Khan, Bikramjit Sarkar","doi":"10.1049/qtc2.12068","DOIUrl":"10.1049/qtc2.12068","url":null,"abstract":"SARS-CoV-2 epidemic (severe acute respiratory corona virus 2 syndromes) has caused major impacts on a global scale. Several countries, including India, Europe, U.S.A., introduced a full state/nation lockdown to minimise the disease transmission through human interaction after the virus entered the population and to minimise the loss of human life. Millions of people have gone unemployed due to lockdown implementation, resulting in business and industry closure and leading to a national economic slowdown. Therefore, preventing the spread of the COVID-19 virus in the world while also preserving the global economy is an essential problem requiring an effective and immediate solution. Using the compartmental epidemiology S, E, I, R or D (Susceptible, Exposed, Infectious, Recovery or Death) model extended to multiple population regions, the authors predict the evolution of the SARS-CoV-2 disease and construct an optimally scheduled lockdown calendar to execute lockdown over phases, using the well-known Knapsack problem. A comparative analysis of both classical and quantum models shows that our model decreases SARS-CoV-2 active cases while retaining the average global economic factor, Gross Domestic Product, in contrast to the scenario with no lockdown.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"5 1","pages":"19-37"},"PeriodicalIF":2.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85571773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of outage performance in a 6G-V2X communications system utilising free-space optical quantum key distribution 利用自由空间光量子密钥分发的 6G-V2X 通信系统的中断性能分析

IET Quantum Communication Pub Date : 2023-08-25 DOI: 10.1049/qtc2.12067

Hu Yuan, Daniel S. Fowler, Carsten Maple, Gregory Epiphaniou

{"title":"Analysis of outage performance in a 6G-V2X communications system utilising free-space optical quantum key distribution","authors":"Hu Yuan, Daniel S. Fowler, Carsten Maple, Gregory Epiphaniou","doi":"10.1049/qtc2.12067","DOIUrl":"10.1049/qtc2.12067","url":null,"abstract":"Quantum-based technologies will provide system engineers with new capabilities for securing data communications. The UK AirQKD project has implemented a Free-Space Optical Quantum Key Distribution (QKD) system to enable the continuous generation of symmetric encryption keys. One of the use cases for the generated keys is to secure Vehicle-to-Everything (V2X) communications. V2X applications would benefit from the certificate-free security provided by QKD for a post-quantum society. How FSO-QKD could integrate into a V2X architecture is examined. An overview of V2X is provided with the role that FSO-QKD could secure V2X data though some obstacles exist. One of the issues with 6G communications is the potential line-of-sight (LOS) considerations between the V2X devices. The modelling required for LOS is examined to analyse the outage performance of the building to infrastructure links in the 6G architecture. The results from the model show that further work is required if 6G LOS communications are going to be relied upon for future safety-critical V2X applications.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"4 4","pages":"191-199"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83122047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Quantum protocol for decision making and verifying truthfulness among N-quantum parties: Solution and extension of the quantum coin flipping game N 量子方之间决策和验证真实性的量子协议：量子翻硬币游戏的解决方案和扩展

IET Quantum Communication Pub Date : 2023-08-24 DOI: 10.1049/qtc2.12066

Kazuki Ikeda, Adam Lowe

引用次数: 5

Modular quantum circuits for secure communication 用于安全通信的模块量子电路

IET Quantum Communication Pub Date : 2023-08-16 DOI: 10.1049/qtc2.12065

Andrea Ceschini, Antonello Rosato, Massimo Panella

引用次数: 0

Y00 quantum noise randomised cipher; theoretical and experimental background Y00 量子噪声随机密码；理论和实验背景

IET Quantum Communication Pub Date : 2023-07-12 DOI: 10.1049/qtc2.12064

Talehisa Iwakoshi

引用次数: 0

Deep reinforcement learning-based routing and resource assignment in quantum key distribution-secured optical networks 量子密钥分发安全光网络中基于深度强化学习的路由和资源分配

IET Quantum Communication Pub Date : 2023-06-26 DOI: 10.1049/qtc2.12063

Purva Sharma, Shubham Gupta, Vimal Bhatia, Shashi Prakash

{"title":"Deep reinforcement learning-based routing and resource assignment in quantum key distribution-secured optical networks","authors":"Purva Sharma, Shubham Gupta, Vimal Bhatia, Shashi Prakash","doi":"10.1049/qtc2.12063","DOIUrl":"https://doi.org/10.1049/qtc2.12063","url":null,"abstract":"In quantum key distribution-secured optical networks (QKD-ONs), constrained network resources limit the success probability of QKD lightpath requests (QLRs). Thus, the selection of an appropriate route and the efficient utilisation of network resources for establishment of QLRs are the essential and challenging problems. This work addresses the routing and resource assignment (RRA) problem in the quantum signal channel of QKD-ONs. The RRA problem of QKD-ONs is a complex decision making problem, where appropriate solutions depend on understanding the networking environment. Motivated by the recent advances in deep reinforcement learning (DRL) for complex problems and also because of its capability to learn directly from experiences, DRL is exploited to solve the RRA problem and a DRL-based RRA scheme is proposed. The proposed scheme learns the optimal policy to select an appropriate route and assigns suitable network resources for establishment of QLRs by using deep neural networks. The performance of the proposed scheme is compared with the deep-Q network (DQN) method and two baseline schemes, namely, first-fit (FF) and random-fit (RF) for two different networks, namely The National Science Foundation Network (NSFNET) and UBN24. Simulation results indicate that the proposed scheme reduces blocking by 7.19%, 10.11%, and 33.50% for NSFNET and 2.47%, 3.20%, and 19.60% for UBN24 and improves resource utilisation up to 3.40%, 4.33%, and 7.18% for NSFNET and 1.34%, 1.96%, and 6.44% for UBN24 as compared with DQN, FF, and RF, respectively.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"4 3","pages":"136-145"},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50154635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on information lossless teleportation via the W states 通过 W 状态进行无损信息传送的研究

IET Quantum Communication Pub Date : 2023-06-17 DOI: 10.1049/qtc2.12062

Ao Wang, Yu-Zhen Wei, Zong-Yi Li, Min Jiang

引用次数: 0

User trajectory prediction in mobile wireless networks using quantum reservoir computing 基于量子库计算的移动无线网络用户轨迹预测

IET Quantum Communication Pub Date : 2023-06-14 DOI: 10.1049/qtc2.12061

Zoubeir Mlika, Soumaya Cherkaoui, Jean Frédéric Laprade, Simon Corbeil-Letourneau

{"title":"User trajectory prediction in mobile wireless networks using quantum reservoir computing","authors":"Zoubeir Mlika, Soumaya Cherkaoui, Jean Frédéric Laprade, Simon Corbeil-Letourneau","doi":"10.1049/qtc2.12061","DOIUrl":"https://doi.org/10.1049/qtc2.12061","url":null,"abstract":"This paper applies a quantum machine learning technique to predict mobile users' trajectories in mobile wireless networks by using an approach called quantum reservoir computing (QRC). Mobile users' trajectories prediction belongs to the task of temporal information processing, and it is a mobility management problem that is essential for self-organising and autonomous 6G networks. Our aim is to accurately predict the future positions of mobile users in wireless networks using QRC. To do so, the authors use a real-world time series dataset to model mobile users' trajectories. The QRC approach has two components: reservoir computing (RC) and quantum computing (QC). In RC, the training is more computational-efficient than the training of simple recurrent neural networks since, in RC, only the weights of the output layer are trainable. The internal part of RC is what is called the reservoir. For the RC to perform well, the weights of the reservoir should be chosen carefully to create highly complex and non-linear dynamics. The QC is used to create such dynamical reservoir that maps the input time series into higher dimensional computational space composed of dynamical states. After obtaining the high-dimensional dynamical states, a simple linear regression is performed to train the output weights and, thus, the prediction of the mobile users' trajectories can be performed efficiently. In this study, we apply a QRC approach based on the Hamiltonian time evolution of a quantum system. The authors simulate the time evolution using IBM gate-based quantum computers, and they show in the experimental results that the use of QRC to predict the mobile users' trajectories with only a few qubits is efficient and can outperform the classical approaches such as the long short-term memory approach and the echo-state networks approach.","PeriodicalId":100651,"journal":{"name":"IET Quantum Communication","volume":"4 3","pages":"125-135"},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/qtc2.12061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50150729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0