Paper Info
Title
The Trade Off Between Different Modulation Schemes for Maximum Long Reach High Data Transmission Capacity Optical Orthogonal Frequency Division Multiplexing (OOFDM).
Abstract
This paper shows the trade off between different modulation techniques such as multi level quadrature amplitude modulation, multi level phase shift keying, and multi level differential phase shift keying for upgrading direct detection optical orthogonal frequency division multiplexing systems with possible transmission distance up to 15,000 km and total bit rate of 2.56 Tb/s. The 2.56 Tb/s signal is generated by multiplexing 64 OFDM signals with 40 Gb/s for each OFDM. Variations of optical signal to noise ratio (OSNR), signal to noise ratio (SNR), and bit error rate (BER) are studied with the variations of transmission distance. Maximum radio frequency power spectrum, and output electrical power after decoder are measured for different multi level modulation techniques with carrier frequency. It is observed that multi level QAM has presented better performance than multi level PSK and finally multi level DPSK in optical OFDM systems. Maximum output power after decoder is enhanced with both 32-PSK, and 64-QAM. Quadrature signal amplitude level at encoder is upgraded with 64-QAM. It is noticed that OSNR, SNR, and BER are improved using 4-QAM OFDM system than either QPSK or 4-DPSK.
Year
DOI
Venue
2018
https://doi.org/10.1007/s11277-018-5690-9
Wireless Personal Communications
Keywords
Field
DocType
M-QAM,H-PSK,N-DPSK,BER,OSNR,SNR,Optical OFDM systems
Quadrature amplitude modulation,Data transmission,Computer science,Signal-to-noise ratio,Electronic engineering,Real-time computing,Modulation,Multiplexing,Orthogonal frequency-division multiplexing,Bit error rate,Phase-shift keying
Journal
Volume
Issue
ISSN
101
1
0929-6212
Citations 
PageRank 
References 
0
0.34
1
Authors
2
Name
Order
Citations
PageRank
Ahmed Nabih Rashed11510.23
Mohamed S. F. Tabbour201.01