Unrepeated transmission of 20-Gb/s optical quadrature phase-shift-keying signal over 200-km standard single-mode fiber based on digital processing of homodyne-detected signal for Group-velocity dispersion compensation

2006 ◽  
Vol 18 (9) ◽  
pp. 1016-1018 ◽  
Author(s):  
S. Tsukamoto ◽  
K. Katoh ◽  
K. Kikuchi
Keyword(s):  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Dispersion Compensation ◽  
Single Mode ◽  
Digital Processing ◽  
Single Mode Fiber ◽  
Phase Shift Keying ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying

40 Gbps Downstream Transmission Using DQPSK and 20 Gbps Upstream Transmission Using IRZ Modulation in Full-Duplex WDM-PON

2019 ◽  
Vol 40 (3) ◽  
pp. 255-260
Author(s):  
Binoy Das ◽  
Rahul Mukherjee ◽  
Gour Chandra Mandal ◽  
Ardhendu Sekhar Patra
Keyword(s):  
Bit Error Rate ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Full Duplex ◽  
Phase Shift Keying ◽  
Downlink Transmission ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying ◽  
Wdm Pon

Abstract A full duplex WDM-PON system is designed and demonstrated based on carrier reusing scheme and by employing differential quadrature phase shift keying (DQPSK) modulation in downlink and inverse return-to-zero modulation in the uplink to transmit 40 Gbps and 20Gbps data-rate respectively. Three Mach-Zehnder modulators are used sequentially to realize the 67 % carrier suppressed return to zero (CS-RZ) DQPSK modulation in the downlink transmission. Very low bit error rate values @10‒9 and clear eye-diagrams are observed over a 40 km single-mode-fiber transmission in our proposed full-duplex configuration.

Digital-analog hybrid optical phase-lock loop for optical quadrature phase-shift keying

2020 ◽  
Vol 18 (9) ◽  
pp. 090602
Author(s):  
Shaowen Lu ◽  
Yu Zhou ◽  
Funan Zhu ◽  
Jianfeng Sun ◽  
Yan Yang ◽  
...  
Keyword(s):  
Phase Shift ◽  
Phase Lock Loop ◽  
Phase Shift Keying ◽  
Phase Lock ◽  
Optical Phase ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying

scholarly journals Securing ZigBee Commercial Communications Using Constellation Based Distinct Native Attribute Fingerprinting

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Christopher M. Rondeau ◽  
J. Addison Betances ◽  
Michael A. Temple
Keyword(s):  
Discriminant Analysis ◽  
Phase Shift ◽  
Rejection Rate ◽  
Phase Shift Keying ◽  
Multiple Discriminant Analysis ◽  
Network Protection ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying ◽  
Network Device

This work provides development of Constellation Based DNA (CB-DNA) Fingerprinting for use in systems employing quadrature modulations and includes network protection demonstrations for ZigBee offset quadrature phase shift keying modulation. Results are based on 120 unique networks comprised of seven authorized ZigBee RZSUBSTICK devices, with three additional like-model devices serving as unauthorized rogue devices. Authorized network device fingerprints are used to train a Multiple Discriminant Analysis (MDA) classifier and Rogue Rejection Rate (RRR) estimated for 2520 attacks involving rogue devices presenting themselves as authorized devices. With MDA training thresholds set to achieve a True Verification Rate (TVR) of TVR = 95% for authorized network devices, the collective rogue device detection results for SNR ≥ 12 dB include average burst-by-burst RRR ≈ 94% across all 2520 attack scenarios with individual rogue device attack performance spanning 83.32% < RRR < 99.81%.

Reduction of PAPR in FBMC System Using Different Reduction Techniques

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Arun Kumar ◽  
Hemant Rathore
Keyword(s):  
Phase Shift ◽  
Research Study ◽  
Average Power ◽  
Phase Shift Keying ◽  
Reduction Techniques ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying ◽  
Clipping Technique ◽  
Binary Phase Shift Keying

AbstractIn this research study, different Peak Average Power Ratio (PAPR) based reduction techniques, namely, A-Law companding, µ-Law companding, Clipping & Filtering and Clipping are analyzed for Filter Band Multi-Carrier (FBMC) with different transmission systems such as Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 64-QPSK and 64-Quadrature Amplitude Modulation. It is estimated that the PAPR reduction can benefit by using clipping technique in FBMC.

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