Abstract
This paper presents the comparison of using Decision Feedback Time-domain Equalizer (DF-TEQ) and Low Complexity DF-TEQ (LCDF-TEQ) to reduce Cyclic Prefix (CP) length for Optical Orthogonal Frequency Division Multiplexing (O-OFDM) transmission over 1200km of Standard Single Mode Fiber (SSMF). Both TEQs are used immediately after the fiber channel. Numerical modeling results show that they can cancel the residual Inter Symbol Interference (ISI) and Inter Carrier Interference (ICI) caused by both the Group Velocity Dispersion (GVD) and the CP length being shorter than the Channel Impulse Response (CIR). Using these TEQs allows the reduction in size of CP, and consequently leading to system performance improvement. However, each of these TEQs adds computational complexity to the system. Therefore, the aim of this paper is to compare their performance and their computational complexities while considering different CP length and tap numbers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Optik - International Journal for Light and Electron Optics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.