Two-dimensional optical code division multiple access (CDMA) system using the Costas array

1994 ◽  
Author(s):  
Joon-Sung Bae ◽  
Eun-Soo Kim

2011 ◽  
Vol 1 (1) ◽  
pp. 4
Author(s):  
Syed Rizwan-ul- Hasan ◽  
Shakil Ahmed

 In this research paper the performance of the CDMA system has been analyzed with respect to PAPR (Peak to Average Power Ratio) measurement and its reduction. Simulation results verify that high peaks degrade the performance of CDMA, application of codes reduced high peaks and PAPR is a good measure for CDMA.



2020 ◽  
Vol 53 (1) ◽  
Author(s):  
Waqas A. Imtiaz ◽  
Hassan Yousef ◽  
Median Zeghid ◽  
Teena Sharma ◽  
Jawad Mirza










Author(s):  
Bouasria Fatima

<p>In this paper our objective focuses on the development of digital transmission techniques in order to solve the problem of Inter-Symbol Interference (ISI) due to multiple paths and the improvement of Multi-Carrier Code Division Multiple Access (MC-CDMA) system performance. The both algorithm: MERRY algorithm (Multicarrier Equalization by Restoration of Redundancy) called TEQ (Time domain EQualizer) and the power allocation method to allocate appropriate power to each user (Water-filling technique (WF)) [1] is used. Finally, the numerical results show that combining Water Filling with TEQ technique allows to reduce the ISI for MC-CDMA systems.</p>



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