Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

The Structure Design and Analysis of OFDM Symbol in CO-OFDM System

Not Accessible

Your library or personal account may give you access

Abstract

The structure of OFDM symbol has great influence on the performance of coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. We present, for the first time, a typical structure of OFDM symbol with zero padding and pilots for CO-OFDM. Virtual subcarriers is used for guard band and eliminating the impact of DC and low frequency subcarriers. Pilots are intended to track the channel variation and compensate for phase noise. Simulation results indicate that CO-OFDM system with this structure is more resistant to the influence of optical carrier, MZ modulator, linewidth, frequency offset than the system without zero padding. It is also found that 32 pilots are enough in one OFDM symbol. Furthermore, the proposed structure is very suitable for frequency offset compensation. Using the structure, performance of CO-OFDM is improved largely.

© 2010 Optical Society of America

PDF Article
More Like This
A Novel Joint Frequency Offset and Channel Estimation Method for CO-OFDM System

Zhansheng Wang, Yaojun Qiao, and Yuefeng Ji
79881J Asia Communications and Photonics Conference and Exhibition (ACP) 2010

Symbol timing synchronization algorithm for 112Gbit/s PDM CO-OFDM systems

Yanfei Xu, Yaojun Qiao, and Yuefeng Ji
83090I Asia Communications and Photonics Conference and Exhibition (ACP) 2011

The Phase Compensator for Laser Linewidth of 100Gb/s PDM-CO-OFDM Systems

Xuejun Liu, Yaojun Qiao, and Yuefeng Ji
79881M Asia Communications and Photonics Conference and Exhibition (ACP) 2010

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved