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

被引：4

作者：

Allen, B. ^{[1
,2
]}

Simmons, D. ^{[2
]}

Drysdale, T. D. ^{[3
]}

Coon, J. ^{[2
]}

机构：

[1] Network Rail, Quadrant MK, Milton Keynes MK9 1ER, Bucks, England

[2] Univ Oxford, Dept Engn Sci, Pk Rd, Oxford OX1 3PJ, England

[3] Univ Edinburgh, Sch Engn, Edinburgh EH9 3FG, Midlothian, Scotland

来源：

ROYAL SOCIETY OPEN SCIENCE | 2019年 / 6卷 / 01期

关键词：

wireless communications; relay chain; orbital angular momentum multiplexing; spectral efficiency;

D O I：

10.1098/rsos.181063

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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(-1) Hz(-1) 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.

引用

页数：9

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