Title :
A symmetric-structure CDMA-PON system and its implementation
Author :
Ahn, Byung-gu ; Park, Youngil
Author_Institution :
Sch. of Electr. Eng., Seoul, South Korea
Abstract :
A code-division multiple-access (CDMA) passive optical network is proposed as an optical access network system to satisfy the subscriber´s increasing data traffic. A CDMA scheme is used not only for delivering multiple channels to as many remote units, but also for suppressing optical beat noise. In this study, a beat noise environment is analyzed and a transceiver structure to efficiently increase the reverse link rate is suggested. Fundamental experimental results are provided to show its validity.
Keywords :
Walsh functions; code division multiple access; optical fibre subscriber loops; optical noise; pseudonoise codes; synchronisation; CDMA-PON architecture; FTTH; PN code; Q-factor; Walsh code; channel identification; optical access network system; optical beat noise; optical line terminal; optical network units; protocol channel; received eye diagram; reverse link rate; signal spreading; symmetric-structure system; timing synchronization; transceiver structure; Frequency; Multiaccess communication; Optical fiber networks; Optical modulation; Optical network units; Optical noise; Optical receivers; Passive optical networks; Protocols; Working environment noise;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.801066
