Performance Analysis of Enhanced-MPC in Incoherent Synchronous Optical CDMA

Lalmahomed, A.; Karbassian, M. Massoud; Ghafouri‐Shiraz, H.

doi:10.1109/jlt.2009.2034273

Cited by 23 publications

(9 citation statements)

References 14 publications

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“…Hence, the probability density function of the total interference P 2 I I whenq 2 can be obtained from Eq. (6). The BER of the intended user in class-2 is finally…”

Section: Binomial Distribution Of the Mai Analysismentioning

confidence: 99%

“…Many researchers have proposed different OOC designs with different bit-error rate (BER) performance. The designs of constant-length and constant-weight codes suitable for one information rate and single QoS class are widely studied and can be either 1D [3][4][5][6] or 2D codes [7][8][9]. However, the growing importance of aggregating various services with different data rates, such as multimedia transmission (e.g., voice, high-definition television, and e-learning) has resulted in diversified data traffic and the requirement of multirate and differentiated-QoS transmission [1].…”

Section: Introductionmentioning

confidence: 99%

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Extended 2D Codes Supporting Multirate and QoS in Optical CDMA Networks With Poisson and Binomial MAI Models

Zou

Karbassian²,

Ghafouri‐Shiraz

2013

J. Opt. Commun. Netw.

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In this paper, an extended 2D multiweight multilength optical orthogonal code (MWML-OOC) is proposed and analyzed using both Poisson and binomial distributions of multiple access interference (MAI). We also analyze the performance of 1D and 2D MWML-OOC that can support multirate transmission and quality-of-services (QoS) differentiation in the optical code-division multipleaccess networks. The theory of the 1D MWML-OOC is reviewed where its bit-error rate (BER) performance analysis, based on the binomial model of MAI using the convolution technique, is presented and compared with the well-known Poisson model. The results indicated that the overall performance referred to as BER considering the binomial distribution of MAI is better than that obtained from Poisson-modeled MAI for both 1D and 2D MWML-OOCs. It was also found that the extended 2D MWML-OOC can support a greater number of users with reduced chip times and highly improve the BER performance compared with its 1D and 2D counterparts.

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“…Hence, the probability density function of the total interference P 2 I I whenq 2 can be obtained from Eq. (6). The BER of the intended user in class-2 is finally…”

Section: Binomial Distribution Of the Mai Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extended 2D Codes Supporting Multirate and QoS in Optical CDMA Networks With Poisson and Binomial MAI Models

Zou

Karbassian²,

Ghafouri‐Shiraz

2013

J. Opt. Commun. Netw.

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“…Recently, various optical coding sequence schemes have been studied, particularly prime code families, including extended prime code and modified prime code . These studies have been illustrating practical, implementable, and efficient systems with higher throughput and spectral efficiency when compared with other coherent and non‐coherent OCDMA systems .…”

Section: Optical Code Pathsmentioning

confidence: 99%

The effects of multiple access interference and polarization mode dispersion on the outage probability and blocking probability in optical code paths

Durand

Barbosa

Abbade

et al. 2012

Trans. Emerging Tel. Tech.

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In this work, we investigate through a formal approach the effects of multiple access interference and polarization mode dispersion on the blocking probability in optical code paths (OCP)s. These paths are determined by the data encoding with non‐coherent codes from code division multiplexing using prime code sequences. We modeled the blocking probability in the OCPs considering the outage probability like a threshold to determine the number of acceptable active OCPs in each wavelength. In this model, new OCPs are granted until the number of active OCPs on the wavelength reaches the blocking threshold; after that, requests are blocked. Results show quantitatively the contribution of multiple access interference effects and polarization mode dispersion constraints on the outage probability and their impact on the blocking probability in the OCPs. Copyright © 2012 John Wiley & Sons, Ltd.

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“…A most common modulation schemes used in OCDMA system are ON-OFF keying and Pulse Position Modulation in OCDMA systems. PPM outperforms OOK when average power is a constraint factor [1] Several techniques have been proposed for MAI cancelation in OCDMA system like optical double hardlimiters for an OOK-OCDMA system. Hard limiters suffer from receiver complexity [8].…”

Section: Introductionmentioning

confidence: 99%

Combined modulation and code design approach for MAI canelation in OCDMA system

Geetha

Manoharan

2015

2015 2nd International Conference on Electronics and Communication Systems (ICECS)

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Optical code division multiple access (OCDMA) is a promising technology for optical networks especially for optical signal multiplexing as it offers huge bandwidth, secure transmission and high speed. The OCDMA system performance is limited by multiple access interference (MAI) due to asynchronous nature of transmission. This paper discuss an MAI cancellation technique for OCDMA system by incorporating Mary-FSK Modulation and also by employing double padded modified prime code as a signature sequence. The FSK-OCDMA system performance is compared with the existing pulse position modulation (PPM)-OCDMA system. The results reveal that the FSK-OCDMA system achieve better MAI cancellation by providing lower bit error rate than the PPM-OCDMA system.

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Performance Analysis of Enhanced-MPC in Incoherent Synchronous Optical CDMA

Cited by 23 publications

References 14 publications

Extended 2D Codes Supporting Multirate and QoS in Optical CDMA Networks With Poisson and Binomial MAI Models

Extended 2D Codes Supporting Multirate and QoS in Optical CDMA Networks With Poisson and Binomial MAI Models

The effects of multiple access interference and polarization mode dispersion on the outage probability and blocking probability in optical code paths

Combined modulation and code design approach for MAI canelation in OCDMA system

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