Alcatel-Lucent

Bell Laboratories

ECT

Math. Netw. Commun. Dept.

Commun. & Signal Proc. Group

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Differentially detected binary phase shift keying (D-BPSK) has recently attracted a lot of attention for use in ultra-long-haul optical wavelength-division multiplexed (WDM) systems. The main reason is that D-BPSK gives a substantial (about 2.5 dB) detection energy gain over direct-detection on-off keying (DD-OOK). Furthermore, D-BPSK tends to suppress fiber nonlinear penalties such as those due to cross-phase modulation better than OOK. Although D-BPSK is an old technique, the importance of its combined linear and nonlinear gains has been recognized only recently. This motivated an investigation into the performance of several modulation and detection schemes that are suited for high-speed fiber-optic communication.

Selected publications:

• G. Kramer, A. Ashikhmin, A.J. van Wijngaarden and X. Wei,
  
  "Spectral efficiency of coded phase-shift keying in fiber-optic communication",
  IEEE/OSA Journal of Lightwave Technology,
  vol. 10, no. 10, Oct. 2003 (to appear).
  
  
• G. Kramer, A.J. van Wijngaarden, A. Ashikhmin, and X. Wei,
  
  "Spectral efficiency of coded phase modulation for highspeed fiber optic communication",
  Proc. Optical Fiber Conference,
  vol. 1, Atlanta, GA, U.S.A., Mar. 2003, pp. 91-92.
  
  

Selected publications:

• A.J. van Wijngaarden and K.A. Schouhamer Immink,
  
  "Maximum runlength-limited codes with error control capabilities",
  IEEE Journal on Selected Areas in Communications,
  vol. 19, no. 4, Apr. 2001, pp. 602-611.
  
  
• E. Soljanin and A.J. van Wijngaarden,
  
  "Application of distance enhancing codes",
  IEEE Trans. Magnetics,
  vol. 37, no. 2, Mar. 2001, pp. 762-767.
  
  
• A.J. van Wijngaarden and E. Soljanin,
  
  "A combinatorial technique for constructing high rate MTR-RLL codes",
  IEEE Journal on Selected Areas in Communications,
  vol. 19, no. 4, Apr. 2001, pp. 582-588.
  
  
• K.A. Schouhamer Immink and A.J. van Wijngaarden,
  
  "Simple high-rate constrained codes",
  IEE Electronics Letters,
  vol. 32, no. 20, Sep. 1996, p. 1877.
  
  

Selected publications:

• A.J. van Wijngaarden and H. Morita,
  
  "Partial-prefix synchronizable codes",
  IEEE Trans. Inform. Theory,
  vol. 47, no. 5, July 2001, pp. 1839-1848.
  
  
• A.J. van Wijngaarden and T.J. Willink,
  
  "Frame synchronization using distributed sequences",
  IEEE Trans. Communications, vol. 48, no. 12, Dec. 2000, pp. 2127-2138.
  
  
• A.J. Han Vinck and A.J. van Wijngaarden,
  
  "On synchronization for burst transmission",
  IEICE Trans. on Fundamentals of Electronics, Communications and
  Computer Sciences, vol. E80-A, no. 11, Nov. 1997, pp. 2130-2135.
  
  
• H. Morita, A.J. van Wijngaarden, and A.J. Han Vinck,
  
  "On the construction of maximal prefix-synchronized codes",
  IEEE Trans. Inform. Theory, vol. 42, no. 6, Nov. 1996, pp. 2158-2166.