Performance Optimization of Carving Signal RZ-DQPSK Modulation Scheme

2018 ◽  
pp. 27-33
Author(s):  
Divya Sharma ◽  
Vinit Jaiswal ◽  
Y. K. Prajapati ◽  
Rajeev Tripathi
Keyword(s):  
Performance Optimization ◽  
Modulation Scheme

scholarly journals Performance Optimization of Visible Light Communication

2021 ◽  
Vol 9 ◽  
Author(s):  
Agha Yasir Ali ◽  
◽  
Lubna Farhi ◽  
Usama Ahmed ◽  
Asad Subhan ◽  
...  
Keyword(s):  
Visible Light ◽  
Bit Error Rate ◽  
Performance Optimization ◽  
Visible Light Communication ◽  
Data Rate ◽  
Modulation Scheme ◽  
Performance Parameters ◽  
Trade Off ◽  
High Bandwidth ◽  
Ber Performance

This paper focuses to analyze the data rate, bit error rate (BER), flickering & bandwidth of visible light communication (VLC) system. The existing modulation scheme ON-OFF Keying (OOK) is modified and produces the trade-off between these parameters. The modified ON-OFF Keying (MOOK) is proposed in which the variation in the transmitted pulses is investigated. Therefore, the square and rectangular pulses are used to transmit zero and one bits respectively. The duty cycle of square pulse is increased to improve the flickering performance. Moreover, it utilized the bandwidth and deteriorates the BER performance. The differential MOOK (DMOOK) modulation scheme is also proposed in which the ON period of square pulse (zero bits) is removed. Therefore, the data rate of DMOOK is increased because the duration of zero bit pulse is decreased. Similarly, the high bandwidth is utilized and BER performance deteriorates. All performance parameters are evaluated on Arduino based hardware VLC system. We conclude that the BER performance deteriorates by improving flickering performance and data rate of the VLC system.

Performance optimization of RZ-DQPSK modulation scheme for dispersion compensated optical link

Optik ◽  
2013 ◽  
Vol 124 (17) ◽  
pp. 2593-2596 ◽  
Author(s):  
Vinita Tiwari ◽  
Debabrata Sikdar ◽  
V.K. Chaubey
Keyword(s):  
Performance Optimization ◽  
Modulation Scheme ◽  
Optical Link

A Novel Turbo Coded Modulation Scheme for Deep Space Optical Communications

2010 ◽  
Vol E93.B (5) ◽  
pp. 1260-1263 ◽  
Author(s):  
Sangmok OH ◽  
Inho HWANG ◽  
Adrish BANERJEE ◽  
Jeong Woo LEE
Keyword(s):  
Optical Communications ◽  
Coded Modulation ◽  
Modulation Scheme ◽  
Deep Space ◽  
Turbo Coded Modulation

Performance Optimization of Semi-Custom Memory in 7nm FPGA

2020 ◽  
Author(s):  
Sourabh Aditya Swarnkar ◽  
Mohammad Anees ◽  
Kumar Rahul ◽  
Santosh Yachareni
Keyword(s):  
Performance Optimization
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