Title :
Coherent Optical CDMA with low MAI
Author :
Cooper, A. Brinton ; Khurgin, Jacob B. ; Xu, Shuangmei ; Kang, Jin U.
Author_Institution :
Johns Hopkins Univ., Baltimore
Abstract :
A novel coherent optical code division multiple access (OCDMA) network based on phase and polarization diversity balanced reception of spectrally encoded optical pulses is proposed. Spectral efficiencies of 1 bps/Hz and beyond can be achieved by minimizing multiple access interference (MAI) and by cancelling beat noise. While the system achieves full capacity under bit synchronism, it also offers competitive performance at up to 25% of full capacity, even when completely asynchronous. Tree and ring network configurations can assure synchronization, making the proposed system robust in the presence of dispersion and phase noise.
Keywords :
code division multiple access; diversity reception; interference (signal); optical fibre networks; OCDMA; beat noise cancellation; coherent optical code division multiple access network; multiple access interference; phase diversity balanced reception; phase noise; polarization diversity balanced reception; ring network; spectrally encoded optical pulses; synchronization; tree network; Interference cancellation; Multiaccess communication; Multiple access interference; Noise cancellation; Noise robustness; Optical fiber networks; Optical noise; Optical polarization; Optical pulses; Phase noise;
Conference_Titel :
Information Sciences and Systems, 2007. CISS '07. 41st Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
1-4244-1063-3
Electronic_ISBN :
1-4244-1037-1
DOI :
10.1109/CISS.2007.4298390
