کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
462550 696808 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Compact bi-directional optical CDMA encoder/decoder with low power dissipation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Compact bi-directional optical CDMA encoder/decoder with low power dissipation
چکیده انگلیسی

One decoding structure with power saving ability is proposed for spectral-amplitude-coding (SAC) optical code-division multiple access (OCDMA) system. This decoding structure can avoid unnecessary power loss in the decoder based on fiber Bragg gratings, thus thermal noise in the photodiodes of the decoder is suppressed. In addition, this decoding structure can cooperate with the encoding structure based on arrayed-waveguide grating (AWG) routers with power saving ability to enhance the system performance. Code families generated from cyclic difference sets (CDSs) can be used in this encoding/decoding pair based on AWG routers due to their cyclic properties. Therefore network application such as passive optical network can adopt OCDMA with simper coder configuration and accommodate the same number of users with lower source power.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 13, Issue 3, July 2007, Pages 254-259