High spectral efficiency coherent optical OFDM transmission

2009 ◽  
Author(s):  
William Shieh ◽  
Qi Yang ◽  
Yiran Ma ◽  
Simin Chen ◽  
Yan Tang
Keyword(s):  
Spectral Efficiency ◽  
High Spectral Efficiency ◽  
Optical Ofdm

scholarly journals HERMITIAN SYMMETRY BASED FIBER NON-LINEARITY COMPENSATION IN OPTICAL OFDM NETWORKS

2013 ◽  
pp. 8-14
Author(s):  
KAMALA KANNAN P ◽  
GURU VIGNESH B ◽  
INIYAN P A ◽  
ILAVARASAN T
Keyword(s):  
Optical Fiber ◽  
Optical Networks ◽  
Spectral Efficiency ◽  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Power Level ◽  
Optical Fiber Communication ◽  
High Spectral Efficiency ◽  
Optical Ofdm

Orthogonal Frequency Division Multiplexing (OFDM) is a modulation technique which is now used in most new and emerging broadband wired and wireless communication systems such as standard 802.11a/b/g/n, Digital Video Broad casting Television (DVB-TV), and Long Term Evolution (LTE) in the next mobile generation, due to its capacity in solving the problems of Inter-Symbol Interference (ISI) caused by the effects of the dispersive channel. Very recently researches focus on applying OFDM technology in optical fiber communication systems. Optical OFDM is well suited for high speed transmission systems with high spectral efficiency and attracted significant attention from the optical communication community. One of the major issues that degrade the performance of optical OFDM networks is its fiber non-linearity. Fiber non-linearities represent the fundamental limiting mechanisms to the amount of data that can be transmitted on a single optical fiber. Non-linear effects arise as optical fiber data rates, transmission lengths, number of wavelengths, and optical power level increases. Therefore, the effect of non-linearity in high data rate optical networks needs to be controlled to enhance link performances. In this paper, a nonlinearity compensation technique (Hermitian Symmetry) is implemented to improve the performance of OFDM based optical networks. This would provide high spectral efficiency, low ISI and very good Bit Error Rate (BER) performances without increasing the complexity of the network. The optical OFDM transmission system with fiber non-linearity compensation is simulated using Virtual Photonics Integrated (VPI) software.

Multilayered optical OFDM for high spectral efficiency in visible light communication system

2019 ◽  
Vol 38 (3) ◽  
pp. 299-313 ◽  
Author(s):  
Ayad Atiyah Abdulkafi ◽  
Saad Mshhain Hardan ◽  
Oguz Bayat ◽  
Osman Nuri Ucan
Keyword(s):  
Visible Light ◽  
Spectral Efficiency ◽  
Communication System ◽  
Visible Light Communication ◽  
High Spectral Efficiency ◽  
Optical Ofdm

scholarly journals A high spectral efficiency optical OFDM scheme based on interleaved multiplexing

2010 ◽  
Vol 18 (25) ◽  
pp. 26149 ◽  
Author(s):  
Cheng Lei ◽  
Hongwei Chen ◽  
Minghua Chen ◽  
Shizhong Xie
Keyword(s):  
Spectral Efficiency ◽  
High Spectral Efficiency ◽  
Optical Ofdm
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