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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 19129–19134

Channel characteristic division OFDM-PON for next generation optical access

Lin Cheng, He Wen, Xiaoping Zheng, Hanyi Zhang, and Bingkun Zhou  »View Author Affiliations


Optics Express, Vol. 19, Issue 20, pp. 19129-19134 (2011)
http://dx.doi.org/10.1364/OE.19.019129


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Abstract

A novel OFDM-PON structure based on channel characteristic division is proposed to reduce the sampling and computation requirement at the ONUs. In this method, the preprocessed downstream signal propagated to the ONUs is diversely aliased on spectrum by the sub-Nyquist sampling. With the subcarriers in OFDM symbols distorted according to the channel characteristics and overlaid by sections, users can recover the expected original data sent to the specific ONU lossless. Based on this method, the receiving capability of one of the 32 ONUs in a 40-Gb/s 32-QAM channel characteristic division OFDM-PON experiment is tested. The experiment confirms that the sampling rates and FFT sizes can be reduced to 1/32 on average compared to the conventional method. This new method also supports dynamic bandwidth allocations and improves the system efficiency and security by realizing the addressing process in the physical layer.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4250) Fiber optics and optical communications : Networks

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 11, 2011
Revised Manuscript: September 1, 2011
Manuscript Accepted: September 3, 2011
Published: September 19, 2011

Citation
Lin Cheng, He Wen, Xiaoping Zheng, Hanyi Zhang, and Bingkun Zhou, "Channel characteristic division OFDM-PON for next generation optical access," Opt. Express 19, 19129-19134 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-20-19129


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References

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