PIN versus Avalanche photodiode gain optimization in zero cross correlation optical code division multiple access system

Anuar, M. S.; Aljunid, S. A.; Arief, A. R.; Junita, M. N.; Saad, Mohamad Naufal Mohamad

doi:10.1016/j.ijleo.2011.12.003

Cited by 27 publications

(15 citation statements)

References 5 publications

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“…It is essential to add another amplifier to compensate for the attenuation of the DCF and the equation to calculate that is the same as shown in equation 3b. The photodetectors are considered to receive signals with the same sensitivity adopted in the literature [9]. The receiver's sensitivity is set to maintain a Bit Error Rate (BER) value better than 10e-9.…”

Section: A Physical Layermentioning

confidence: 99%

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Importance of simulation tools for the planning of optical network

Martins

Rudge

et al. 2015

SPIE Proceedings

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The main proposal of this work is to show the importance of using simulation tools to project optical networks. The simulation method supports the investigation of several system and network parameters, such as bit error rate, blocking probability as well as physical layer issues, such as attenuation, dispersion, and nonlinearities, as these are all important to evaluate and validate the operability of optical networks. The work was divided into two parts: firstly, physical layer preplanning was proposed for the distribution of amplifiers and compensating for the attenuation and dispersion effects in span transmission; in this part, we also analyzed the quality of the transmitted signal. In the second part, an analysis of the transport layer was completed, proposing wavelength distribution planning, according to the total utilization of each link. The main network parameters used to evaluate the transport and physical layer design were delay (latency), blocking probability, and bit error rate (BER). This work was carried out with commercially available simulation tools.

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Section: A Physical Layermentioning

confidence: 99%

“…The photodetector sensitivity considered to obtain the values of table 2 is the one used in the reference [9], as mentioned before. With values of table 1, we can see that the use of amplifiers is needed in all scenarios.…”

Section: Optical Network Planningmentioning

confidence: 99%

Importance of simulation tools for the planning of optical network

Martins

Rudge

et al. 2015

SPIE Proceedings

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“…An OCDMA attracts considerable attention due to asynchronous access capability [1] and provides security in transmission network as its distinguished each channel by a specific optical code [2]. Many research on finding the most suitable form of optical CDMA coding system has been widely investigated for coherent and incoherent optical multiple access techniques [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

High performance mixed optical CDMA system using ZCC code and multiband OFDM

et al. 2017

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Abstract. In this paper, we have proposed a high performance network design, which is based on mixed optical Code Division Multiple Access (CDMA) system using Zero Cross Correlation (ZCC) code and multiband Orthogonal Frequency Division Multiplexing (OFDM) called catenated OFDM. In addition, we also investigate the related changing parameters such as; effective power, number of user, number of band, code length and code weight. Then we theoretically analyzed the system performance comprehensively while considering up to five OFDM bands. The feasibility of the proposed system architecture is verified via the numerical analysis. The research results demonstrated that our developed modulation solution can significantly enhanced the total number of user; improving up to 80% for five catenated bands compared to traditional optical CDMA system, with the code length equals to 80, transmitted at 622 Mbps. It is also demonstrated that the BER performance strongly depends on number of weight, especially with less number of users. As the number of weight increases, the BER performance is better.

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“…In recent years, interest in spectral-amplitude-coding optical code-division multipleaccess (SACOCDMA) systems has been upsurge because of their ability in alleviating the effect of MAI on the performance as well as low cost [4], [5]. In SAC-OCDMA systems, it has been shown that MAI can be suppressed either by using fixed in-phase cross-correlation codes with subtraction detection techniques or via utilizing zero cross-correlation (ZCC) codes with direct detection technique [6], [7]. SAC-OCDMA systems may be used in inter-vehicle communication (IVC) [8], free-space optics (FSO) [9], and future optical communications networks [10].…”

Section: Introductionmentioning

confidence: 99%

“…In prior studies, numerous coding and detection approaches have been investigated to mitigate the influence of PIIN in SAC-OCDMA systems. The codes with ZCC property, such as ZCC codes [7], single weight ZCC (SWZCC) [14], and ZCC based on balanced incomplete block design (BIBD) [15], are one of the promising solutions to inhibit PIIN in SAC-OCDMA systems and thus enhances the BER performance. In this paper, we propose an innovative encoding/decoding architecture based on two-code keying scheme to enable bipolar encoding in high-rate SAC-OCDMA systems.…”

Section: Introductionmentioning

confidence: 99%

An innovative encoding/decoding architecture based on two-code keying for SAC-OCDMA systems

Al-Khafaji

Ngah

Aljunid

et al. 2014

2014 IEEE 5th International Conference on Photonics (ICP)

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An elegant encoding/decoding architecture based on two-code keying scheme for high-rate transmission in non-coherent spectral-amplitude-coding optical code-division multipleaccess (SAC-OCDMA) systems, is suggested. To evaluate the performance improvement, a commercial OptiSystem software (Version 12.2.1) is used. The simulation results show that SAC-OCDMA system using the proposed architecture exhibited an enhanced performance.

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PIN versus Avalanche photodiode gain optimization in zero cross correlation optical code division multiple access system

Cited by 27 publications

References 5 publications

Importance of simulation tools for the planning of optical network

Importance of simulation tools for the planning of optical network

High performance mixed optical CDMA system using ZCC code and multiband OFDM

An innovative encoding/decoding architecture based on two-code keying for SAC-OCDMA systems

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