Modeling and simulation of variable weight zero cross correlation code in optical access network

Junita, M. N.; Aljunid, S. A.; Anuar, M. S.; Arief, A. R.; Rahim, Rosemizi Abd; Ahmad, Robiah; Saad, Mohamad Naufal Mohamad

doi:10.1109/icp.2012.6379845

Cited by 4 publications

(5 citation statements)

References 12 publications

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“…The SNR of a specific user with a particular weight of interest, W i in the presence of other users with various weights using the SDD technique can be deduced in an approach similar to that in [9] to be:…”

Section: Mathematical Analysis Of the Variable Weight Deu Code (Vw-dementioning

confidence: 99%

“…The construction of the DEU code with variable weight is shown below. The mapping technique can be used to increase the number of users for each weight if needed [6,9]. The total code length is equal to the sum of code lengths required for each weight L T = L(2) ?…”

Section: Construction Of Variable Weight Deu Codementioning

confidence: 99%

“…Users with high weight have high priority in transmission and good performance as the higher weight means a higher received power. Some studies discussed variable weight OCDMA such as integer lattice optical orthogonal code (IL-OOC) [7], variable weight OOC [8], variable weight zero cross correlation code (ZCC) [9]. In addition, triple-play services use the random diagonal (RD) code, where PIIN is suppressed using a variable weight system.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Diagonal Eigenvalue Unity (DEU) Code Using NAND Subtraction and Spectral Direct Detection Techniques and Its Use with Triple-Play-Services in SAC-OCDMA

Mostafa

Mohamed

El‐Samie

et al. 2015

Wireless Pers Commun

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In this paper, we investigate the performance of optical code division multiple access system using the diagonal eigenvalue unity (DEU) code as a promising code for future optical networks. A comparison between the utilization of the NAND subtraction detection technique and the spectral direct detection (SDD) technique is presented to investigate which one provides better performance with the DEU code. In addition, a complete mathematical analysis for the two cases is presented. The performance of the two techniques is evaluated in terms of signal to noise ratio, bit error rate (BER), the effective received power, and phase induced intensity noise. Also, the variable weight DEU code is discussed. It demonstrates success for triple-play services (audio, video, and data) using the SDD technique to provide different quality of service (QoS) values to users. The results show that the SDD technique supports a larger number of users, reduces the receiver complexity, and provides better performance than the NAND subtraction technique. For a minimum acceptable BER of 10 -9 for a telecommunication system, the direct detection technique supports 265 users, while the NAND subtraction supports 150 users only for (weight W = 3). Also, with variable weights in a single system, the performance of users with high weight is always better compared to that of lower weight users.

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Section: Mathematical Analysis Of the Variable Weight Deu Code (Vw-dementioning

confidence: 99%

Section: Construction Of Variable Weight Deu Codementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Diagonal Eigenvalue Unity (DEU) Code Using NAND Subtraction and Spectral Direct Detection Techniques and Its Use with Triple-Play-Services in SAC-OCDMA

Mostafa

Mohamed

El‐Samie

et al. 2015

Wireless Pers Commun

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“…Inspiring from ZCC code and DW code, we present multi service ZCC (MS-ZCC) which can generate codes with DW and ordinary codes. Although VW-ZCC had been presented before [7], there were some limitations in their code with regards to its performance and code construction technique. In our presented algorithm, code construction is simpler and formulated accurately.…”

Section: Introductionmentioning

confidence: 98%

OCDMA multi service with zero cross correlation code in free space optics

Moghaddasi

Hitam

Abas

et al. 2014

2014 IEEE 5th International Conference on Photonics (ICP)

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In this paper a variable weight code for Optical Code Division Multiple Access (OCDMA) is proposed to provide differentiated services in optical network. We call it multi service zero cross correlation (MS-ZCC) where it has zero-cross correlation. Using simulation, the performance of this code is compared with the conventional variable weight (VW) -ZCC code in free space optic (FSO) environment. The newly proposed code MS-ZCC shows an improvement of 300 meters link distance for weight 2 and 8, compared to VW-ZCC.

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“…Thus, some zero cross-correlation (ZCC) codes along with the spectral direct detection (SDD) [18] technique has been reported to eliminate the PIIN for the SAC-OCDMA system. Such as ZCC code [19], Multi-Diagonal (MD) code based on the orthogonal matrix [20], new ZCC code with satisfactory code lengths [21], VW ZCC Code [22] and Zero Cross Correlation Code (ZCCC) with CW and VW [23].…”

Section: Introductionmentioning

confidence: 99%

Development and performance improvement of a novel zero cross-correlation code for SAC-OCDMA systems

Ding

Nie

et al. 2020

Journal of Optical Communications

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In order to improve the performance of the Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) system, a zero cross-correlation (ZCC) code named double weight multi-diagonal (DW-MD) is proposed with constant weight (CW) or variable weight (VW). Mathematical results illustrate that it is feasible to reduce the number of filters without sacrificing system performance by using the CW DW-MD code instead of the multi-diagonal (MD) code. And for the VW DW-MD code, the supportable number of users for lower code weight WL (3) at bit error rate (BER) of 10−3 (voice) is 43, medium code weight WM (4) at BER of 10−9 (data) is 29, and higher code weight WH (5) at BER of 10−12 (video) is 32. Finally, the analysis about the position of chips “1” is given, and the simulation setups show that the CW DW-MD code outperforms the MD code when Gaussian optical filter is used.

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Modeling and simulation of variable weight zero cross correlation code in optical access network

Cited by 4 publications

References 12 publications

Performance Analysis of Diagonal Eigenvalue Unity (DEU) Code Using NAND Subtraction and Spectral Direct Detection Techniques and Its Use with Triple-Play-Services in SAC-OCDMA

Performance Analysis of Diagonal Eigenvalue Unity (DEU) Code Using NAND Subtraction and Spectral Direct Detection Techniques and Its Use with Triple-Play-Services in SAC-OCDMA

OCDMA multi service with zero cross correlation code in free space optics

Development and performance improvement of a novel zero cross-correlation code for SAC-OCDMA systems

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