An analysis of the cross-correlation properties of prime code and bit error rate in an optical CDMA system

2000 ◽  
Vol 83 (9) ◽  
pp. 94-103 ◽  
Author(s):  
Yuzuru Shimura ◽  
Hiroyuki Yashima ◽  
Jouji Suzuki
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Cross Correlation ◽  
Optical Cdma ◽  
Cdma System ◽  
The Cross ◽  
Correlation Properties

scholarly journals Cross-Correlation Properties of Costas Arrays and Their Images under Horizontal and Vertical Flips

2008 ◽  
Vol 2008 ◽  
pp. 1-11 ◽  
Author(s):  
Konstantinos Drakakis ◽  
Rod Gow ◽  
John Healy ◽  
Scott Rickard
Keyword(s):  
Cross Correlation ◽  
The Cross ◽  
Correlation Properties

We consider the cross-correlation of a Costas array with its image under a horizontal and/or a vertical flip. We propose and prove several bounds on the maximal cross-correlation and on its value at the origin, for both general Costas arrays and for algebraically constructed ones.

scholarly journals Performance evaluation of flexible cross correlation (FCC) OCDMA code based on radio over fiber (RoF) simulation system

2019 ◽  
Vol 13 (2) ◽  
pp. 543
Author(s):  
Z. Ibrahim ◽  
C.B.M. Rashidi ◽  
S.A. Aljunaid ◽  
A.K. Rahman ◽  
M.S. Anuar
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Cross Correlation ◽  
Local Area Network ◽  
Multiple Access Interference ◽  
Local Area ◽  
Simulation System ◽  
Area Network ◽  
Bit Rate ◽  
Code Construction

<span>This paper investigates the performance of an elegance code set algorithm known as Flexible Cross Correlation (FCC) code to be run into a simulation test of proposed RoF system. Executing OCDMA Code into RoF framework is seen as a promising technique for enhancing spectral efficiency and meanwhile enhanced the length of fiber optic cable and data bit rate execution while reduce the passive equipment device. This code can efficaciously reduce the results of phase-induced intensity noise (PIIN), it has the multiple access interference (MAI) cancellation belongs to RoF system and at the same time simple and easy within the code construction. Bit error rate (BER) performance is assessed for this proposed simulation system. The evaluation made based on the performance of fiber length, data bit rate, related with Bit Error Rate (BER) and also the complexity of the system. The extensive simulation results reveal FCC code possibly will accomplish sufficiently up to 51 km at BER 10-9 for data rate 155 Mbps as matched to 622 Mbps with exponentially increases at BER 10-12 error floor and it is fit for short haul networking such as FTTH and local area network (LAN).</span>

Derivation of New Expressions of Bit Error Rate for MC-CDMA System in Nakagami Fading Channel

2003 ◽  
Vol 57 (6) ◽  
pp. 395-402 ◽  
Author(s):  
Ahmed Bouzidi Djebbar ◽  
Ali Djebbari ◽  
Merahi Bouziani ◽  
Jean Michel Rouvaen
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Fading Channel ◽  
Nakagami Fading ◽  
Cdma System ◽  
Nakagami Fading Channel

ON GENERATING BINARY SPATIOTEMPORAL CHAOTIC SEQUENCES AND ITS APPLICATION ON SPREAD-SPECTRUM COMMUNICATIONS

2006 ◽  
Vol 16 (01) ◽  
pp. 213-219 ◽  
Author(s):  
XINGANG WANG ◽  
C.-H. LAI
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Spread Spectrum ◽  
Coupled Map Lattice ◽  
Spread Spectrum Communication ◽  
Error Performance ◽  
Code Generator ◽  
Chaotic Sequences ◽  
Spread Spectrum Communications ◽  
Correlation Properties

A code generator is designed based on a one-way coupled map lattice (OCML) system, and application of the generated binary spatiotemporal chaotic sequences on baseband spread spectrum communication is investigated. Random characters and the correlation properties of quantized signals are discussed, and error performance in communication is analyzed. It is shown that these sequences not only possess extremely high security in comparison with both conventional sequences and earlier chaotic communication schemes, but also show good performance on the Bit Error Rate (BER). The system also has the advantages of fast code generating speed and ease of synchronization, and is capable of supplying large amount of sequences.

Design of Multiservice Code (MS) in Spectral/Temporal/Spatial Domain for OCDMA System

2020 ◽  
Vol 41 (3) ◽  
pp. 305-317
Author(s):  
Sumit Gupta ◽  
Aditya Goel
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Cross Correlation ◽  
Thermal Noise ◽  
Code Length ◽  
3 Dimensional ◽  
Received Power ◽  
Variable Weight ◽  
Variable Length Codes ◽  
The Ideal

AbstractThis paper explores the design of multiservice code (MS) in spectral, time spreading and wavelength domains (3-Dimensional). The proposed 3D code is designed in such a manner that follows the ideal in phase unit cross correlation in spectral, time spreading and wavelength domains. The proposed encoder generates the MS code effectively in 3D domain and decoder suppresses the multi-user interferences successfully. Performance analyses are carried out by considering the all noises such as phase induce intensity noise(PIIN), shot noise and thermal noise. The analysis of 3D-MS code for variable code length is also performed for measurement of variation in bit error rate against the received power and number of active users in the design. The observed performances are also compared with existing codes such as 2D-MDW, 3D-PDC and 1D-MS code and the proposed code shows the better performance. The analysis of bit error rate of proposed code is carried out against the number of users at 0.622Gbits/s data rate and 0 dBm received power and comparison is also formed with the existing code such as 3D PD(M=21, N=3, P=3), 2DMDW(M=63, P=3), PDC(M=57, P=3) and 1D MS Code. It is noted that 3D MS code shows the better performance than the existing methods. Analysis is also evaluated for variable weight and variable length codes in order to observe the variation in bit error rate with variation in received power and number of simultaneous users.

Sign in / Sign up

Export Citation Format

Share Document