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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 6, Iss. 2 — Feb. 1, 2014
  • pp: 159–164

Performance of 16 QAM-OFDM With New Null Subcarrier Shifting in an Intensity-Modulated Direct Detection System

Hongxian Chen, Jing He, Jin Tang, Fan Li, Ming Chen, and Lin Chen  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 6, Issue 2, pp. 159-164 (2014)
http://dx.doi.org/10.1364/JOCN.6.000159


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Abstract

To reduce the peak-to-average power ratio (PAPR) of the optical orthogonal frequency-division multiplexing (OOFDM) signal, a novel null subcarrier shifting scheme is proposed in an intensity-modulated direct detection OFDM system. At the receiver, a constant subcarrier is used as the location information to implement demodulation accurately. Meanwhile, the computational complexity is degraded apparently by adopting the proposed scheme. The experimental results show that the PAPR reduction of the OFDM signal can reach about 2 dB at a complementary cumulative distribution function of 1×104, and the receiver sensitivity after 100 km single-mode fiber transmission at the bit error rate (BER) of 1×103 can be improved by about 1.5, 1.8, 2.1, and 2.6 dB when the launch power is 3, 5, 8, and 10 dBm, respectively.

© 2014 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Research Papers

History
Original Manuscript: May 15, 2013
Revised Manuscript: November 25, 2013
Manuscript Accepted: December 12, 2013
Published: January 24, 2014

Citation
Hongxian Chen, Jing He, Jin Tang, Fan Li, Ming Chen, and Lin Chen, "Performance of 16 QAM-OFDM With New Null Subcarrier Shifting in an Intensity-Modulated Direct Detection System," J. Opt. Commun. Netw. 6, 159-164 (2014)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-6-2-159

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