OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 7 — Mar. 26, 2012
  • pp: 7350–7361

A simple and efficient frequency offset estimation algorithm for high-speed coherent optical OFDM systems

Xian Zhou, Keping Long, Rui Li, Xiaolong Yang, and Zhongshan Zhang  »View Author Affiliations


Optics Express, Vol. 20, Issue 7, pp. 7350-7361 (2012)
http://dx.doi.org/10.1364/OE.20.007350


View Full Text Article

Enhanced HTML    Acrobat PDF (1136 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In this paper, we propose a simple frequency offset estimation (FOE) algorithm for high-speed coherent optical orthogonal frequency-division multiplexing (CO-OFDM) systems, which avoids the exhaustive search computations on the integer part of FOE by using a merit function. In time domain, the FOE algorithm can estimate all the frequency offset in the range of [-5GHz, +5GHz], for satisfying the practical application requirement, based on only one redesigned training symbol. In addition, we provide the theoretical analysis about the quantitative influences of the residual frequency offset (RFO) on CO-OFDM systems. In order to reduce the final estimation error, a new zero-overhead residual frequency offset estimation (RFOE) algorithm is also proposed in this paper. Finally, the feasibility and effectiveness of the proposed FOE and RFOE algorithms are demonstrated in a 464 Gbit/s polarization-division multiplexed (PDM) 16-ary quadrature amplitude modulation (QAM) CO-OFDM system by the simulation, and numerical results validate the proposed algorithms.

© 2012 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 10, 2012
Revised Manuscript: March 2, 2012
Manuscript Accepted: March 8, 2012
Published: March 15, 2012

Citation
Xian Zhou, Keping Long, Rui Li, Xiaolong Yang, and Zhongshan Zhang, "A simple and efficient frequency offset estimation algorithm for high-speed coherent optical OFDM systems," Opt. Express 20, 7350-7361 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-7-7350


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. R.W. Tkach, “Scaling optical communications for the next decade and beyond,” Bell Labs Tech. J. 14(4), 3–9 (2010). [CrossRef]
  2. X. Liu, S. Chandrasekhar, B. Zhu, P. J. Winzer, A. H. Gnauck, D. W. Peckham, “448-Gb/s reduced-guard-interval CO-OFDM transmission over 2000km of ultra-large-area fiber and five 80 Ghz-grid ROADMs,” J. Lightwave Technol. 29(4), 483–490 (2011).
  3. Y. Ma, Q. Yang, Y. Tang, S. Chen, and W. Shieh, “1-Tb/s per channel coherent optical OFDM transmission with subwavelength bandwidth access,” in in National Fiber Optic Engineers Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper PDPC1.
  4. E. Ip, A. P. Lau, D. J. Barros, J. M. Kahn, “Coherent detection in optical fiber systems,” Opt. Express 16(2), 753–791 (2008). [CrossRef] [PubMed]
  5. W. Shieh, X. W. Yi, Y. Ma, Q. Yang, “Coherent optical OFDM: has its time come? [Invited],” J. Opt. Networking 7(2), 34–55 (2008).
  6. Y. Tang, W. Shieh, “Coherent optical OFDM transmission up to 1 Tb/s per channel,” J. Lightwave Technol. 27(16), 3511–3517 (2009). [CrossRef]
  7. X. W. Yi, W. Shieh, Y. Ma, “Phase noise effects on high spectral efficiency coherent optical OFDM transmission,” J. Lightwave Technol. 26(10), 1309–1316 (2008). [CrossRef]
  8. T. M. Schmidl, D. C. Cox, “Robust frequency and timing synchronization for OFDM,” IEEE Trans. Commun. 45(12), 1613–1621 (1997). [CrossRef]
  9. Z. Zhang, W. Jiang, H. Zhou, Y. Liu, J. Gao, “High accuracy frequency offset correction with adjustable acquisition range in OFDM systems,” IEEE Trans. Wirel. Comm. 4(1), 228–237 (2005). [CrossRef]
  10. S.-H. Fan, J. Yu, D. Qian, G.-K. Chang, “A fast and efficient frequency offset correction technique for coherent optical orthogonal frequency division multiplexing,” J. Lightwave Technol. 29(13), 1997–2004 (2011). [CrossRef]
  11. Z. Zhang, K. P. Long, M. Zhao, Y. N. Liu, “Joint frame synchronization and frequency offset estimation in OFDM systems,” IEEE Trans. Broadcast 51(3), 389–394 (2005). [CrossRef]
  12. S. L. Jansen, I. Morita, T. C. W. Schenk, N. Takeda, H. Tanaka, “Coherent optical 25.8-Gb/s OFDM transmission over 4160-km SSMF,” J. Lightwave Technol. 26(1), 6–15 (2008). [CrossRef]
  13. F. Buchali, R. Dischler, M. Mayrock, X. Xiao, and Y. Tang, “Improved frequency offset correction in coherent optical OFDM systems,” in 34th European Conference on Optical Communication, 2008. ECOC 2008 (2008), Paper Mo.4.D.4.
  14. Optical Internetworking Forum, “Integrable Tunable Laser Assembly MSA,” OIF-ITLA-MSA-01.1 (Nov. 22, 2005).
  15. W. Shieh and I. Djordjevic, OFDM for Optical Communications (Elsevier, 2011).
  16. B. Aklar, Digital Communications: Fundamentals & Applications (Prentice-Hall, 2001).
  17. X. W. Yi, W. Shieh, Y. Tang, “Phase estimation for coherent optical OFDM,” IEEE Photon. Technol. Lett. 19(12), 919–921 (2007). [CrossRef]
  18. S. L. Jansen, I. Morita, T. C. Schenk, H. Tanaka, “Long-haul transmission of 16 ×52.5 Gbit/s polarization-division-multiplexed OFDM enabled by MIMO processing (Invited),” J. Opt. Networking 7(2), 173–182 (2008). [CrossRef]
  19. K. Ishihara, T. Kobayashi, R. Kudo, Y. Takatori, A. Sano, E. Yamada, H. Masuda, M. Matsui, M. Mizoguchi, Y. Miyamoto, “Frequency-domain equalization without guard interval for optical transmission systems,” Electron. Lett. 44(25), 1480–1481 (2008). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited