Title :
Combinatorial constructions of optical orthogonal codes for OCDMA systems
Author :
Djordjevic, Ivan B. ; Vasic, Bane
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Bristol, UK
fDate :
6/1/2004 12:00:00 AM
Abstract :
Two novel classes of optical orthogonal code (OOC) based on balanced incomplete block designs are proposed: OOC based on mutual orthogonal Latin squares/rectangles and the codes based on finite geometries. Both OOC families can be applied to synchronous and asynchronous incoherent optical CDMA, and are compatible with spectral-amplitude-coding (SAC), time-spreading encoding and fast frequency hopping schemes. Large flexibility in cross-correlation control makes those OOC families interesting candidates for applications that require a large number of users. Novel fiber Bragg grating decoding scheme for canceling the multi-user interference from SAC-signals with nonfixed in-phase cross-correlation is proposed as well.
Keywords :
Bragg gratings; code division multiple access; codes; frequency hop communication; interference suppression; optical fibre networks; balanced incomplete block design; code division multiple access; combinatorial construction; cross-correlation control; fast frequency hoping scheme; fiber Bragg grating decoding scheme; finite geometry; multiuser interference canceling; mutual orthogonal Latin squares-rectangle; optical CDMA system; optical orthogonal code; spectral-amplitude-coding; time-spreading encoding; Bragg gratings; Decoding; Encoding; Error correction; Error correction codes; Frequency; Geometrical optics; Interference cancellation; Multiaccess communication; Optical design;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.831331
