Title :
Comments on "Novel combinatorial constructions of optical orthogonal codes for incoherent optical CDMA systems"
Author :
Cheing-Hong Lin ; Jingshown Wu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
For original paper see I.B. Djordjevic and B. Vasic, ibid., vol.21, no.9, p1869 (2003). Lin and Wu state that the balanced multiuser interference (MUI) cancellation decoder shown in the original paper is erroneous and cannot function. They feel that the balanced MUI cancellation decoder therefore cannot be used to decode the proposed code families based on MOLRs, integer lattice design, and AG. In order to make these code families applicable to spectral-amplitude-coding systems, the authors may need to propose another decoding scheme to solve this problem.
Keywords :
Bragg gratings; code division multiple access; codes; decoding; optical fibre communication; optical fibres; photodiodes; balanced decoding; fiber Bragg grating; in-phase cross correlation; incoherent optical CDMA; multiuser interference cancellation; optical orthogonal codes; photodiode; Bragg gratings; Decoding; Fiber gratings; Geometrical optics; Interference cancellation; Lattices; Multiaccess communication; Optical design; Photodiodes;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.861938