Downloads: 118 | Views: 255
Case Studies | Electronics & Communication Engineering | India | Volume 4 Issue 2, February 2015 | Popularity: 6.3 / 10
Absolute Polar Duty Cycle Division Multiplexing: A Spectrally Efficient Multiplexing Method
Resmi Revi. S., Pratheesh.P
Abstract: Absolute Polar Duty Cycle Division Multiplexing (AP-DCDM) is a new multiplexing technique, which is based on absolute Polar Return-to-Zero (RZ) duty cycles, that increases the channel count from the conventional multiplexing techniques. Absolute Polar Duty Cycle Division Multiplexing over Wavelength Division Multiplexing (WDM) is a multiplexing technique which promises better spectral efficiency. It faces nonlinearities such as Self Phase Modulation, Cross Phase Modulation and FourWave Mixing, which affects the spectral efficiency. FWM is the prominent nonlinearity faced by AP-DCDM system. RZ and NRZ modulation schemes are used to evaluate the performance parameters of AP-DCDM system. The RZ format would be beneficial for systems with few channels but would require NRZ as the number of channels increase. The RZ format has better baseline receiver sensitivity when the average power into the fiber is kept constant. Since an RZ pulse has a wider optical bandwidth than an NRZ pulse, it is more affected by dispersion. In AP-DCDM system, with the change in duty cycles and polarity of each RZ pulses, error detection and correction is possible at the receiver side. AP-DCDM system has high spectral efficiency and tolerance towards dispersion due to its reduced spectral bandwidth. The performance analysis of the system is done by using Optisystem 12.0 software.
Keywords: Absolute Polar Duty Cycle Division Multiplexing AP-DCDM, WDM, FWM Q factor, Bit rate
Edition: Volume 4 Issue 2, February 2015
Pages: 295 - 298
Make Sure to Disable the Pop-Up Blocker of Web Browser
Similar Articles
Downloads: 107 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1
M.Tech / M.E / PhD Thesis, Electronics & Communication Engineering, India, Volume 3 Issue 11, November 2014
Pages: 2477 - 2482Survivability with P-Cycle in WDM Networks
K. Aparna, P. Ramya Krishna
Downloads: 111
Research Paper, Electronics & Communication Engineering, India, Volume 3 Issue 12, December 2014
Pages: 1681 - 1684Optical Communication with Time Division Multiplexing (OTDM) and Hybrid WDM/OTDM PON
Arpana Mishra, Priyesh Mishra
Downloads: 117
Research Paper, Electronics & Communication Engineering, India, Volume 5 Issue 2, February 2016
Pages: 1916 - 1921Low-Splice Loss Design of DS and DF Single-Mode Fibers
Dr C M Jadhao
Downloads: 122
Case Studies, Electronics & Communication Engineering, India, Volume 4 Issue 2, February 2015
Pages: 373 - 377Performance Analysis of Hybrid WDM/TDM PON Using Various Coding Techniques
Jisha V S, Sunaina N
Downloads: 128
Case Studies, Electronics & Communication Engineering, India, Volume 4 Issue 2, February 2015
Pages: 151 - 154Performance Comparison of Radio over Fiber System Using WDM and OADM with Various Digital Modulation Formats
Arya Mohan, Anisha A. P.