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具有模式间串扰的轨道角动量复用放大转发无线电中继链的性能分析

Performance analysis of an orbital angular momentum multiplexed amplify-and-forward radio relay chain with inter-modal crosstalk.

作者信息

Allen B, Simmons D, Drysdale T D, Coon J

机构信息

Network Rail, The Quadrant: MK, Elder Gate, Milton Keynes MK9 1ER, UK.

Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK.

出版信息

R Soc Open Sci. 2019 Jan 23;6(1):181063. doi: 10.1098/rsos.181063. eCollection 2019 Jan.

DOI:10.1098/rsos.181063
PMID:30800358
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6366228/
Abstract

The end-to-end spectral efficiency and bit error rate (BER) of an amplify-and-forward (AF) radio relay chain employing orbital angular momentum (OAM) multiplexing is presented. The inherent divergence of a beam carrying OAM is overcome by means of a lens. Modelled and measured inter-modal crosstalk levels are incorporated into the analysis. The results show that an end-to-end spectral efficiency of up to 8 bits s Hz is achievable using four OAM modes to multiplex four parallel data streams over 20 hops, provided that the detrimental effects of inter-modal crosstalk are mitigated. The spectral efficiency is expected to scale further by using more OAM modes. The BER profile along the relay chain is analysed for each of the four OAM modes.

摘要

给出了采用轨道角动量（OAM）复用的放大转发（AF）无线电中继链的端到端频谱效率和误码率（BER）。借助透镜克服了携带OAM光束的固有发散。分析中纳入了建模和测量的模间串扰水平。结果表明，使用四种OAM模式在20跳上复用四个并行数据流时，只要减轻模间串扰的不利影响，端到端频谱效率可达8比特/秒/赫兹。预计通过使用更多OAM模式，频谱效率将进一步提高。针对四种OAM模式中的每一种，分析了沿中继链的误码率分布。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/8fa2a8714f86/rsos181063-g7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/8e957aac3d2f/rsos181063-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/6710d608d37f/rsos181063-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/c3d86e8d006d/rsos181063-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/54107f48d156/rsos181063-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/0431fb50c5f4/rsos181063-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/1cc499cf0f9d/rsos181063-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/8fa2a8714f86/rsos181063-g7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/8e957aac3d2f/rsos181063-g1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/6710d608d37f/rsos181063-g2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/c3d86e8d006d/rsos181063-g3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/54107f48d156/rsos181063-g4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/0431fb50c5f4/rsos181063-g5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/1cc499cf0f9d/rsos181063-g6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/920c/6366228/8fa2a8714f86/rsos181063-g7.jpg

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本文引用的文献

1
Analogies between optical and quantum mechanical angular momentum.光学角动量与量子力学角动量之间的类比。
Philos Trans A Math Phys Eng Sci. 2017 Feb 28;375(2087). doi: 10.1098/rsta.2015.0443.
2
High-capacity millimetre-wave communications with orbital angular momentum multiplexing.具有轨道角动量复用的高容量毫米波通信。
Nat Commun. 2014 Sep 16;5:4876. doi: 10.1038/ncomms5876.