Optical domain multiuser interference estimation for spectral phase encoding optical fibre CDMA systems
- Resource Type
- Conference
- Authors
- Yazdani, Arash; Noshad, Morteza; Jaliloghli, Hojat; Jaliloghli, Amirhossein; Noshad, Mohammad
- Source
- Proceedings of the International Conference on Optical Communication Systems Optical Communication Systems (OPTICS), 2011 Proceedings of the International Conference on. :1-4 Jul, 2011
- Subject
- Photonics and Electrooptics
Communication, Networking and Broadcast Technologies
Computing and Processing
Interference
Estimation
Optical pulses
Nonlinear optics
Optical receivers
Optical harmonic generation
Optical fiber code division multiple access
Spectral phase encoding
Optical domain multiuser interference detection
Temporal multiuser interference estimation
Nonlinear multiuser interference estimation
- Language
In this paper, an effective technique for reducing the multi-user interference (MUI) in spectrally-phase-encoded optical code division multiple access (SPE-OCDMA) systems has been proposed. In this method the effect of MUI signal on the main user's signal has been decreased using multiuser interference detection (MID). Two structures have been introduced for accomplishing MID and degrading its destructive effect on the decoded ultra-short light pulse; temporal multiuser interference estimation (TMIE) and nonlinear multiuser interference estimation (NMIE). Both of these methods utilize two photo-detectors for estimating the MUI signal. In spite of simple structure of these two receivers, their performance analysis shows an improved performances comparing to other receivers.