Title :
Spectral Efficiencies of the Optical CDMA-Based PONs Using Two-Code Keying
Author_Institution :
Dept. of Electro-Opt. Eng., Kun Shan Univ., Tainan, Taiwan
fDate :
8/1/2010 12:00:00 AM
Abstract :
The method to generate codewords from traditional maximum length sequences (m-sequence) in the spectral-amplitude coding (SAC) optical code-division multiple-access (OCDMA) network is present. When these codewords are adopted, two code keying can be used and superior spectral efficiencies can be obtained in the networks as compared to original m-sequences. In addition, since the corresponding coder can be implemented compactly by the use of commercial arrayed waveguide gratings (AWGs), these codewords are suitable for the application of OCDMA-based passive optical networks.
Keywords :
arrayed waveguide gratings; code division multiplexing; optical communication; OCDMA; arrayed waveguide gratings; optical CDMA-based PON; optical code division multiple access network; passive optical networks; spectral amplitude coding; two-code keying; Arrayed waveguide gratings; Chaos; Decoding; Helium; Light sources; Multiaccess communication; Multiple access interference; Optical arrays; Optical fiber networks; Optical fibers; Optical waveguides; Passive optical networks; Optical code-division multiple-access (OCDMA); arrayed waveguide grating (AWG); passive optical network(PON); spectral-amplitude coding (SAC);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.08.100585
