IEEE Photonics Technology Letters · 2006 · 13 citations · 4 references
EngineeringOptical Wireless CommunicationInterference CancellationElectromagnetic CompatibilityOptical ComputingMultiple Access TechniqueTime DisseminationFull DuplexChip RateData RecoveryOptical CommunicationCoding TheoryOptical SystemsNon-terrestrial Optical NetworksOptical NetworkingPhotonicsFec OverheadData CommunicationComputer EngineeringSecure Optical CommunicationComputer ScienceFrequency DisseminationSignal ProcessingGlobal ClockStandalone ReceiverOptical AccessLambda -T
We demonstrate a standalone (no global clock) receiver for two-dimensional wavelength-time optical code-division multiple-access. The receiver provides the following functions: quantization (to eliminate multiple access interference), clock and data recovery, return-to-zero to nonreturn-to-zero conversion (for optical code-division multiple-access compatibility with digital logic), framing (for byte synchronization), and forward-error correction (FEC) using a (255, 239) Reed-Solomon decoder. The receiver more than doubles the number of supported users at a bit-error rate <10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-10</sup> . The receiver supports an information rate of 156.25 Mb/s. We performed the measurements at a bit rate of 167.4 Mb/s and a chip rate of 1.339 Gb/s (eight chips per bit) to account for FEC overhead
4
Experimental BER performance of 2D λ-t OCDMA with recovered clock
J. Faucher, S. Ayotte, Leslie A. Rusch et al. · Electronics Letters · 2005 · 11 citations