Ultra-high-capacity long-haul 40-Gb/s WDM transmission with 0.8-b/s/Hz spectral efficiency by means of strong optical filtering

2003 ◽  
Vol 15 (3) ◽  
pp. 470-472 ◽  
Author(s):  
A. Agarwal ◽  
S. Banerjee ◽  
D.F. Grosz ◽  
A.P. Kung ◽  
D.N. Maywar ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
High Capacity ◽  
Optical Filtering ◽  
Wdm Transmission

High Capacity/Spectral Efficiency 101.7-Tb/s WDM Transmission Using PDM-128QAM-OFDM Over 165-km SSMF Within C- and L-Bands

2012 ◽  
Vol 30 (10) ◽  
pp. 1540-1548 ◽  
Author(s):  
Dayou Qian ◽  
Ming-Fang Huang ◽  
Ezra Ip ◽  
Yue-Kai Huang ◽  
Yin Shao ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
High Capacity ◽  
Wdm Transmission

Tributary Mapping Multiplexing an Efficient Technique for High Speed Fiber Optic Communication

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Usman Illahi ◽  
Javed Iqbal ◽  
Muhammad Ismail Sulaiman ◽  
Muhammad Alam ◽  
Mazliham Mohd Su'ud
Keyword(s):  
Spectral Efficiency ◽  
High Speed ◽  
Fiber Optic ◽  
Single Channel ◽  
Efficient Technique ◽  
High Dispersion ◽  
Optical Filtering ◽  
Fiber Optic Communication ◽  
Optic Communication ◽  
Dispersion Tolerance

<p>A novel technique of multiplexing called Tributary Mapping Multiplexing (TMM) is<br />applied to a single channel wavelength division multiplexing system and performance is monitored on the basis of simulation results. To elaborate the performance of TMM in this paper, a 4-User TMM system over single wavelength channel is demonstrated. TMM showed significant tolerance against narrow optical filtering as compared to that of conventional TDM at the rate of 40 Gbit/s. The above calculations are made by optical filter bandwidth and dispersion tolerance that was allowed at minimum. The spectral efficiency achieved by this TMM was 1 b/s/Hz and it was executed by using transmitters and receivers of 10 Gbit/s without polarized multiplexing. The high spectral efficiency, high dispersion tolerance and tolerance against strong optical filtering makes TMM an efficient technique for High<br />Speed Fiber Optic Communication.</p>

Enhancement of Performance of Multi Diagonal Code OCDMA System Using OFDM Technique

2014 ◽  
Vol 679 ◽  
pp. 30-34 ◽  
Author(s):  
A.O. Aldhaibani ◽  
S.A. Aljunid ◽  
M.S. Anuar ◽  
A.R. Arief
Keyword(s):  
Cost Effectiveness ◽  
Spectral Efficiency ◽  
High Capacity ◽  
Access Networks ◽  
Next Generation Networks ◽  
High Spectral Efficiency ◽  
Efficiency Cost ◽  
Promising Solution ◽  
Improved Performance ◽  
Theoretical Results

In this paper, we describe the improved performance of the SAC-OCDMA system using OFDM technique compared to SCM/SAC-OCDMA system. The theoretical results of proposed system shows that the new SAC/OCDMA system with OFDM technique provides better performance compared to SCM/OCDMA system based on multi diagonal code (MD), and the results have been evaluated based on BER and number of users for bit rate 1Gb/s and 10 Gb/s . Thus this system could be a promising solution to symmetric high capacity access networks with high spectral efficiency, cost effectiveness, good flexibility and enhanced security, which is candidate for next generation networks.

scholarly journals Ultra-Long-Haul WDM Transmission with High Spectral Efficiency

2011 ◽  
Vol E94-B (2) ◽  
pp. 392-399 ◽  
Author(s):  
Yi CAI ◽  
Jin-Xing CAI ◽  
Carl R. DAVIDSON ◽  
Dmitri G. FOURSA ◽  
Alan J. LUCERO ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
High Spectral Efficiency ◽  
Wdm Transmission
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