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The problem of joint symbol and frame synchronization in direct-detection optical PPM communication systems under the assumption of known slot timing is considered here. The optimum maximum-likelihood (ML) and sub-optimum rules for this joint symbol and frame synchronization problem are derived. The reason of Georghiades's (1985) incorrect ML rule is discussed in this paper.




Frame Synchronization Direct-Detection Optical PPM Communication Optimum Maximum-Likelihood.

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  1. BASTAKI, E.M., EESA, M. 1989. “Frame Synchronization in Communication Systems,” Ph.D. Dissertation, University of California, Irvine, U.M.I., Ann Arbor, MI.
  2. GEORGHIADES, C.N. 1985. "Joint Baud and Frame Synchronization in Direct-Detection Optical Communication," IEEE Transactions on Communications, vol. COM-33, pp. 357-360, April 1985.