Simulation of successive interference cancellation scheme based on spectral amplitude coding for optical CDMA systems using Hadamard codes

Eltaif, Tawfig; Shalaby, Hossam M. H.; Shaari, Sahbudin; Hamarsheh, Mohammad M. N.

doi:10.1117/12.801873

Cited by 2 publications

(9 citation statements)

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“…There are many theoretical investigations on OCDMA, such as studying the codes in terms of auto/crosscorrelation [1][2][3][4], studying recevier schemes [8][9][10]. In this article we aim to implement multi premises optical network based on OCDMA technique.…”

Section: Multi Premises Descriptionmentioning

confidence: 99%

Multi premises network based on coding technique

Eltaif

Muwafu

Hamida

2013

2013 IEEE 11th Malaysia International Conference on Communications (MICC)

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in this article optical code division multiple access (OCDMA) was chosen as multiplexing technique because it's considered as the next-generation optical access network. A multi premises downstream optical network was implemented using direct detection method based on OCDMA technique. The users encoded by modified prime code at C band with channel spacing 50 GHz. In this article low error rate transmission at high data rate for distances up to 25 km is demonstrated. Variation in the results was studied when varied fiber length, data rate and different effective power were applied. It has been shown that OCDMA is capable of providing gigabit-per-second for each user. Nevertheless, the results have indicated that direct detection OCDMA technique is capable to support multi premises network.Keywords-Modified prime codes, Optical code division multiple access (OCDMA) technique, multi premises optical network.

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Section: Multi Premises Descriptionmentioning

confidence: 99%

Multi premises network based on coding technique

Eltaif

Muwafu

Hamida

2013

2013 IEEE 11th Malaysia International Conference on Communications (MICC)

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“…Other effects caused by dark current, shot noise, and other sources of noise are neglected in order to focus only on the interference (i.e., MAI), created by other simultaneous users. Furthermore, for the thermal noise, we can define the variance of l j+1 conditioned on A n as follows, according to [14][15]:…”

Section: Sic-ds-ocdma Theoretical Analysismentioning

confidence: 99%

“…1. Once the strongest user selected, its contribution to the original signal is regenerated and subtracted from the overall received signal to get a new received signal [12][13][14][15][16][17]. The algorithm repeats excluding the strongest user from the new received signal, regenerated, then subtracted from the original signal one by one till all users have been detected.…”

Section: Sic Scheme Descriptionmentioning

confidence: 99%

“…SIC scheme has been analysed with many different optical codes, such as OOC codes, modified prime codes (MPC) [10], Hadamard codes and modified quadratic congruence codes (MQC) [11] using OOK modulation [12][13][14][15]. It has been found that SIC scheme has the ability to reduce the MAI, and then the system performance in terms of bit error rate (BER) significantly improves at each stage of cancellation process.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found that SIC scheme has the ability to reduce the MAI, and then the system performance in terms of bit error rate (BER) significantly improves at each stage of cancellation process. It is noticeable that the system with SIC scheme has much better performance than with the system without cancellation [13][14][15]. Alternative optical CDMA systems occupy spectral amplitude coding (SAC) and get more attention by the researchers since this scheme can totally supress the MAI.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Review on Successive Interference Cancellation Scheme Based on Optical CDMA Network

Alsowaidi

Eltaif

Mokhtar

2014

Journal of Optical Communications

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Due to various desirable features of optical code division multiple access (OCDMA), it is believed this technique once developed and commercially available will be an integral part of optical access networks. Optical CDMA system suffers from a problem called multiple access interference (MAI) which limits the number of active users, it occurs when number of active users share the same carriers. The aim of this paper is to review successive interference cancellation (SIC) scheme based on optical CDMA system. The paper also reviews the system performance in presence of shot noise, thermal noise, and phase-induced intensity noise (PIIN). A comprehensive review on the mathematical model of SIC scheme using direct detection (DS) and spectral amplitude coding (SAC) were presented in this article.

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Simulation of successive interference cancellation scheme based on spectral amplitude coding for optical CDMA systems using Hadamard codes

Cited by 2 publications

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Multi premises network based on coding technique

Multi premises network based on coding technique

A Review on Successive Interference Cancellation Scheme Based on Optical CDMA Network

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