Construction and bit error analysis of zero cross-correlation codes for SAC-Optical CDMA systems

Malleswari, M.; Murugesan, K.

doi:10.1007/s12596-013-0145-x

Cited by 10 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, the design has shifted from one-dimensional (1D) encoding to having two dimensions (2D), resulting in systems that are spectral/spatial (S/S), spectral/time (S/T), time/polarization (T/P), and so on. There are several proposed codes for OCDMA systems based on diverse mathematical methods, such as eigenvalues [19], identity matrix [20], shifting property [21], and others.…”

Section: Of 26mentioning

confidence: 99%

Capacity Improvement of 3D-OCDMA-PON Hybrid System Next Generation Using Weight Zero Cross Correlation Code

et al. 2023

View full text Add to dashboard Cite

This paper proposes a novel code for optical code division multiple access (OCDMA) systems, called the three-dimensional (3D) spectral/temporal/spatial single weight zero cross-correlation (3D-SWZCC) code. The proposed code could potentially be used in the next generation of passive optical networks (NG-PONs) to provide a 3D-SWZCC-OCDMA-NG-PON system. The developed code has a high capacity and a zero cross-correlation property that completely suppresses the multiple access interference (MAI) effects that are a main drawback for OCDMA systems. Previously, a two-dimensional (2D) SWZCC code was proposed for two-dimensional OCDMA (2D-OCDMA) systems. It works by devoting the first and second components to spectral and spatial encodings, respectively. However, the proposed code aims to carry out encoding domains in spectral, time, and spatial aspects for the first, second, and third components, respectively. One-dimensional, 2D, and 3D systems can support up to 68, 157, and 454 active users with total code lengths equal to 68, 171, and 273, respectively. Numerical results reveal that the 3D-SWZCC code outperforms codes from previous studies, including 3D codes such as perfect difference (PD), PD/multi-diagonal (PD/MD), dynamic cyclic shift/MD (DCS/MD), and Pascal’s triangle zero cross-correlation (PTZCC), according to various metrics. The system function is provided by exhibiting the architecture of the transmitter and receiver in the PON context, where the proposed code demonstrates its effectiveness in meeting optical communication requirements based on 3D-OCDMA-PON by producing a high quality factor (Q) of 18.8 and low bit error rate (BER) of 3.48 × 10−29 over a long distance that can reach 30 Km for a data rate of 0.622 Gbps.

show abstract

Section: Of 26mentioning

confidence: 99%

Capacity Improvement of 3D-OCDMA-PON Hybrid System Next Generation Using Weight Zero Cross Correlation Code

et al. 2023

View full text Add to dashboard Cite

show abstract

“…To avoid PIIN effect, the codes with zero cross-correlation have been introduced such as: the zero cross-correlation (ZCC) code [14], the new zero cross-correlation (NZCC) code [13], the single weight zero crosscorrelation (SW-ZCC) code [15], the modified new zero cross-correlation (MNZCC) code [16], and the modified multiservice (MMS) code [17]. The overlapping absence between the different sequences of these codes leads to the complete elimination of MAI and PIIN.…”

Section: Introductionmentioning

confidence: 99%

Construction and performance analysis of a new SAC-OCDMA code based on Latin square matrix

Aissaoui¹,

Hacini²

2020

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

In this paper a family of novel spreading code called Latin square code (LSC) is proposed for spectral amplitude coding-optical code division multiple access (SAC-OCDMA) system. The main feature of the proposed code is the zero cross-correlation which eliminates both multiple access interference (MAI) and phase induced intensity noise (PIIN). The code construction can be easily accomplished using Latin square matrix (LSM) for any weight and number of users. The simplicity in the construction code has made it a compelling candidate for future OCDMA applications. SAC-OCDMA system employing direct decoding is mathematically analyzed and then numerically simulated using Matlab and OptiSystem respectively. The results show the improvement given by the LSC code to the SAC-OCDMA system compared to the other codes such as: ZCC (zero cross-correlation) and MMS (modified multiservice) by allowing high cardinality and improving BER. Furthermore, the transmission quality, so that the BER does not exceed the value of 10 −9 , is ensured by the LSC code with a lower effective source power of -14.5 dBm, a bit rate of 4.6 Gb/s and a cardinality exceeding ZCC and MMS by 1.7 and 1.22 times respectively. The simulation results validate the mathematical analysis and show that the system makes it possible to increase the transmission distance without affecting QoS (quality of service).

show abstract

“…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)

View full text Add to dashboard Cite

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.

show abstract

Construction and bit error analysis of zero cross-correlation codes for SAC-Optical CDMA systems

Cited by 10 publications

References 13 publications

Capacity Improvement of 3D-OCDMA-PON Hybrid System Next Generation Using Weight Zero Cross Correlation Code

Capacity Improvement of 3D-OCDMA-PON Hybrid System Next Generation Using Weight Zero Cross Correlation Code

Construction and performance analysis of a new SAC-OCDMA code based on Latin square matrix

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

Contact Info

Product

Resources

About