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Frequency‐shift keying optical code‐division multiple‐access system with novel interference cancellation
Author(s) -
Karbassian M. M.,
GhafouriShiraz H.
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23233
Subject(s) - frequency shift keying , keying , single antenna interference cancellation , electronic engineering , bit error rate , computer science , interference (communication) , wavelength division multiplexing , multiplexing , signal (programming language) , modulation (music) , telecommunications , demodulation , engineering , detector , wavelength , physics , optics , channel (broadcasting) , acoustics , programming language
A novel multiple user interference (MUI) cancellation technique is introduced with a reference signal which is data‐free from the intended signal. It also simplifies the receiver architecture in synchronous M‐ary wavelength or frequency shift keying (FSK) OCDMA. In the analysis, the system upper‐bounded bit‐error rate (BER) is derived taking into account the Poisson effect on the I/O characteristics of the photo‐detectors (PD). It is found that the capacity of this system also increases by employing the proposed MUI canceller. In contrast to wavelength‐division multiplexing (WDM), fewer wavelengths are needed as a result of M‐ary source coding. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 883–885, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23233