Quantum relay cooperative communication via space-time transmission

被引：0

作者：

Shi, Jinjing ^{[1
]}

Shi, Ronghua ^{[1
]}

Peng, Xiaoqi ^{[2
]}

Guo, Ying ^{[3
,4
]}

Lee, Moon Ho ^{[5
]}

机构：

[1] School of Information Science and Engineering, Central South University, Changsha,410083, China

[2] Department of Information Science and Engineering, Hunan First Normal University, Changsha,410205, China

[3] School of Information Science and Engineering, Central South University, Changsha,410083, China

[4] School of Engineering and Information Technology, University of New South Wales at ADFA, Canberra,ACT,2600, Australia

[5] Institute of Information and Communication, Chonbuk National University, Chonju,561-756, Korea, Republic of

来源：

Quantum Information and Computation | 2015年 / 15卷 / 7-8期

基金：

新加坡国家研究基金会; 高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Quantum communication - Bit error rate - Quantum entanglement - Space time codes - Communication channels (information theory) - Quantum optics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Two novel quantum relay cooperative communication schemes 1S2R1D and 2S2R2D are proposed by applying the wireless communication technique in the quantum system. The orthogonal quantum signals in consecutive quantum sequences are prepared to avoid mutual interference and they are firstly transmitted to the quantum relay node and then to the destination node with space-time transmission. Moreover, quantum operations and transformations are implemented on the relay node and the destination node to maximize the correct information transmission. The fidelity between original and final received signals, the security, the quantum bit error rate and the lower bound on the capacity of quantum relay channels are analyzed. Especially it provides a valuable application prospect in long distance reliable quantum communications. © Rinton Press.

引用

页码：660 / 676

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