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

2019 ◽  
Vol 6 (1) ◽  
pp. 181063 ◽  
Author(s):  
B. Allen ◽  
D. Simmons ◽  
T. D. Drysdale ◽  
J. Coon
Keyword(s):  
Angular Momentum ◽  
Performance Analysis ◽  
Orbital Angular Momentum ◽  
Bit Error Rate ◽  
Error Rate ◽  
Data Streams ◽  
Spectral Efficiency ◽  
Amplify And Forward ◽  
Parallel Data ◽  
End To End

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.

Bit error rate performance analysis in amplify-and-forward relay networks

2016 ◽  
Vol 23 (3) ◽  
pp. 947-957 ◽  
Author(s):  
Muhammad I. Khalil ◽  
Stevan M. Berber ◽  
Kevin W. Sowerby
Keyword(s):  
Performance Analysis ◽  
Bit Error Rate ◽  
Error Rate ◽  
Relay Networks ◽  
Rate Performance ◽  
Amplify And Forward

scholarly journals Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating

2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
Mingyang Su ◽  
Junmin Liu ◽  
Yanliang He ◽  
Shuqing Chen ◽  
Ying Li
Keyword(s):  
Numerical Simulation ◽  
Angular Momentum ◽  
Light Intensity ◽  
Diffraction Efficiency ◽  
Orbital Angular Momentum ◽  
Bit Error Rate ◽  
Error Rate ◽  
Channel Equalization ◽  
Grating Structure

A novel equalizing Dammann vortex grating (EDVG) is proposed as orbital angular momentum (OAM) multiplexer to realize OAM signal demultiplexing and channel equalization. The EDVG is designed by suppressing odd diffraction orders and adjusting the grating structure. The light intensity of diffraction is subsequently distributed evenly in the diffraction orders, and the total diffraction efficiency can be improved from 53.22% to 82%. By using the EDVG, OAM demultiplexing and channel equalization can be realized. Numerical simulation shows that the bit error rate (BER) of each OAM channel can decrease to 10-4 when the bit SNR is 22 dB, and the intensity is distributed over the necessary order of diffraction evenly.

scholarly journals Performance analysis of carrier depletion silicon PIN phase shifter

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jesuwanth Sugesh Ramesh Gabriel ◽  
Sivasubramanian Arunagiri
Keyword(s):  
Performance Analysis ◽  
Bit Error Rate ◽  
Error Rate ◽  
Phase Shifter ◽  
Extinction Ratio ◽  
Fibre Length ◽  
Data Rate ◽  
Operating Voltage ◽  
Data Centre ◽  
Mach Zehnder Modulator

AbstractIn this paper, we report the performance of a carrier depletion Silicon PIN phase shifter with over layer of 130 nm. It is observed that an optimum intrinsic gap of 250 nm for a device length of 5 mm at 2 V, resulted in Extinction Ratio (ER) of 23.41 dB and Bit Error Rate (BER) of 1.00 × 10−7 is obtained for 50 Gbps. The phase shifter is also designed for length 2 mm with an intrinsic gap of 100 nm at an operating voltage <4 V. The study also reveals that the proposed design for Mach-Zehnder modulator operating at a data rate of 100 Gbps for the concentration of P = 7 × 1017 cm−3 and N = 5 × 1017 cm−3 gives better BER and phase performance. The proposed design was also analysed in an intra-data centre communication setup of fibre length 15 km.

scholarly journals Performance Analysis of 3D Video Transmission over Multi-coded N-ary Orbital Angular Momentum FSO System using Deep-learning

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Shimaa A. El-Meadawy ◽  
Hossam M. H. Shalaby ◽  
Nabil A. Ismail ◽  
Ahmed E. A. Farghal ◽  
Fathi E. Abd El-Samie ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Deep Learning ◽  
Performance Analysis ◽  
Orbital Angular Momentum ◽  
Video Transmission ◽  
3D Video

Performance analysis for the bit-error rate of SAC-OCDMA systems

2015 ◽  
Vol 72 ◽  
pp. 160-162 ◽  
Author(s):  
Gang Feng ◽  
Wenqing Cheng ◽  
Fujun Chen
Keyword(s):  
Performance Analysis ◽  
Bit Error Rate ◽  
Error Rate
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