Analytical evaluation of the combined influence of polarization mode dispersion and group velocity dispersion on the bit error rate performance of optical homodyne quadrature phase-shift keying systems

2017 ◽  
Vol 56 (12) ◽  
pp. 1
Author(s):  
Kazi Abu Taher ◽  
Satya Prasad Majumder
2019 ◽  
Vol 40 (3) ◽  
pp. 255-260
Author(s):  
Binoy Das ◽  
Rahul Mukherjee ◽  
Gour Chandra Mandal ◽  
Ardhendu Sekhar Patra

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.


2015 ◽  
Vol 36 (3) ◽  
Author(s):  
Iqbal Kaur ◽  
Kamaljit Singh Bhatia ◽  
Harsimrat Kaur

AbstractIn this paper, we analyze polarization-multiplexed quadrature phase shift keying (PM-QPSK) signals using different receiver with and without differential decoding for PM-QPSK modulation and reception using training sequence-based least mean square (LMS) receiver, PM-QPSK with external local oscillator, PM-QPSK modulation and LMS dynamic receiver and compare their results for bit error rate.


2020 ◽  
Vol 18 (9) ◽  
pp. 090602
Author(s):  
Shaowen Lu ◽  
Yu Zhou ◽  
Funan Zhu ◽  
Jianfeng Sun ◽  
Yan Yang ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Christopher M. Rondeau ◽  
J. Addison Betances ◽  
Michael A. Temple

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%.


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