Title :
Simple robust receiver structure for gigabit ethernet O-CDMA using matrix codes
Author :
Hernandez, Vincent J. ; Mendez, Antonio J. ; Bennett, Corey V. ; Lennon, William J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA, USA
Abstract :
We have developed an optical code division multiple access (O-CDMA) technology demonstrator (TD) based on two-dimensional (2-D) codes. The 2-D codes are derived from folded optimum Golomb rulers, implemented as wavelength/time λ/T codes. The objective of the research is to develop the science and technology for high-performance, low-cost, and robust O-CDMA applications. A key ingredient of the TD is a simple receiver structure that is based on hard-limiting after optical-to-electrical (O/E) conversion and time windowing with a conventional electronic D flip-flop. With the TD, we demonstrate six asynchronous users at less than 10-11 bit error rate (BER) and up to eight users at 10-8 BER, limited by saturation in the optical preamplifier.
Keywords :
code division multiple access; codes; error statistics; optical fibre LAN; optical limiters; optical receivers; optical saturation; Gigabit Ethernet; O-CDMA; asynchronous users; bit error rate; electronic D flip-flop; hard-limiting; matrix codes; optical doe division multiple access; optical preamplifier saturation; optical-to-electrical conversion; robust receiver structure; technology demonstrator; time windowing; two-dimensional codes; Bit error rate; Decoding; Ethernet networks; Interference; Multiaccess communication; Optical receivers; Optical saturation; Research and development; Robustness; Wavelength division multiplexing; Access protocols; code division multiple access (CDMA); codes; encoding; multiaccess communication; numerical modeling; optical fiber communication;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.856171
