Performance analysis of an optical CDMA system with non-ideal optical hard-limiters

2005

SPIE Proceedings

The proposed numerical model of 2D W/T optical CDMA system with optical hard-limiters is presented in this paper. The decoder input and output signal, average signal to interference difference and bit error probability as a function of active user number and weight of codeword for the different topologies of the decoder have been simulated. The influence of non-ideal properties of the used optical hard-limiters and different topologies of the decoder upon average signal to interference difference and bit error probability in system are studied.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical simulation of data transmission in 2D W/T optical CDMA system with optical hard-limiters

2005

SPIE Proceedings

show abstract

“…where IHU is transmission function of 0-HL [3]. The output signal of A:-th user decoder is sequence of optical chip pulses with different amplitudes.…”

Section: System Modelmentioning

confidence: 99%

“…The proposed passive 0-HL is a periodic structure consisting of alternating layers of materials possessing different optical Kerr nonlinearity [2]. We used the approximation their properties by two ideality parameters IPl and IP2 made in [3]. These two parameters characterize the measure of 0-HL non-ideal properties.…”

Section: Introductionmentioning

confidence: 99%

Modification of Decoder for 2-D Wavelength/Time Optical CDMA System by Optical Hard-Limiters

Optical Networks and Technologies

Self Cite

We present the modification of decoder for 2-D Wavelength/Time (W/T) Optical Code Division Multiple Access (0-CDMA) system by optical hardlimiters. The performance improvement of the system using proposed decoder modification is shown by numerical simulation of the average Signal to interference difference and Bit error probability as a function of active user number and weight of codeword for the different topology of the decoder. The influence of non-ideal properties of the used optical hardlimiters upon the bit error probability in system is studied.

show abstract

Performance evaluation of 2D wavelength/time optical CDMA system with optical hard-limiters by numerical modeling

Proceedings of 2004 6th International Conference on Transparent Optical Networks (IEEE Cat. No.04EX804)