Title :
Multi-weight unipolar codes for multimedia spectral-amplitude-coding optical CDMA systems
Author :
Djordjevic, Ivan B. ; Vasic, Bane ; Rorison, Judy
fDate :
4/1/2004 12:00:00 AM
Abstract :
A novel balanced detection scheme for multi-access interference cancellation in multimedia spectral-amplitude-coding optical code-division multiple-access system is proposed. The receiver is capable of handling both equal and unequal in-phase cross correlation of optical orthogonal codes. A novel class of constant-length variable-weight optical orthogonal codes able to support multimedia services with different quality-of-service requirements is proposed as well. The construction is based on the pairwise balanced designs, or more specifically, on an incidence structure defined on an integer sub-lattice.
Keywords :
block codes; code division multiple access; interference suppression; multimedia communication; multiuser detection; optical receivers; quality of service; space-time codes; balanced detection scheme; integer lattices; multiaccess interference cancellation; multimedia services; multiweight unipolar codes; optical CDMA systems; optical orthogonal codes; pairwise balanced designs; quality-of-service; spectral-amplitude coding; Bragg gratings; Decoding; Fiber gratings; Interference cancellation; Multiaccess communication; Multimedia systems; Multiple access interference; Optical pulses; Optical receivers; Optical transmitters;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.825709
