Performance evaluation of chaotic sequences for DSSS multiple access on software defined radio

2016 ◽  
Author(s):  
Leonard Novosel ◽  
Gordan Sisul
Keyword(s):  
Performance Evaluation ◽  
Software Defined Radio ◽  
Multiple Access ◽  
Chaotic Sequences

scholarly journals Performance evaluation of low-density spreading multiple access

2019 ◽  
Vol 13 (1) ◽  
pp. 108-115
Author(s):  
Shuang Chen ◽  
Kewu Peng ◽  
Yushu Zhang ◽  
Jian Song
Keyword(s):  
Performance Evaluation ◽  
Multiple Access ◽  
Low Density

Performance Evaluation of SDR Blade RF using Wide-band Monopole Antenna for Spectrum Sensing Applications

2021 ◽  
Vol 36 (4) ◽  
pp. 419-424
Author(s):  
Ahmed Ibrahim ◽  
Wael Ali ◽  
Hassan Aboushady
Keyword(s):  
Performance Evaluation ◽  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Software Defined Radio ◽  
Ground Plane ◽  
Wide Band ◽  
Monopole Antenna ◽  
Antenna Design ◽  
Wireless Technologies ◽  
Sensing Applications

A spectrum-sensing algorithm is used to detect the available and the occupied frequency bands. The wideband antenna design approach is used for a microstrip fed monopole antenna that can be used for various wireless technologies such as GSM, UMTS, LTE, and WiFi operating at different frequencies from 1.25 to 3 GHz. The antenna is constructed from two copper layers of rectangular radiator and a partial ground plane. These layers are printed on an RO4003 substrate with dimensions 60 x 80 mm2. The antenna is experimentally fabricated to verify the simulation predictions and good matching between simulated and measured results is achieved. The wide-band antenna is tested by connecting it to the receiver of the Blade-RF Software Defined Radio (SDR) platform. A matlab script is then used to control the SDR board and to perform Spectrum Sensing for Cognitive Radio Applications.

scholarly journals 2 Performance Evaluation of Code Division Multiple Access (CDMA) in terms of Power Measurement and Reduction

2011 ◽  
Vol 1 (1) ◽  
pp. 4
Author(s):  
Syed Rizwan-ul- Hasan ◽  
Shakil Ahmed
Keyword(s):  
Performance Evaluation ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Average Power ◽  
Power Measurement ◽  
Cdma System ◽  
Power Ratio ◽  
Ratio Measurement ◽  
Simulation Results ◽  
Code Division Multiple

 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.

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