Image transmission on MC-CDMA system over Rayleigh and AWGN channel using OVSF spreading code

In order to provide high data rates for future wireless communication systems and high-quality communication systems, many new methods have been developed. In recent years, the use of these devices has exploded. In the near future, this technology would require very efficient bandwidth features, suc...

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Bibliographic Details
Main Authors: Ghanem, Abbas Ali, Mohammed, Samir Jasim
Format: Conference Proceeding
Language:English
Subjects:
Bandwidths
Bit error rate
Code Division Multiple Access
Fading
Image transmission
Modulation
Multimedia
Noise
Noise reduction
Random noise
Signal to noise ratio
Wireless communication systems
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Summary:In order to provide high data rates for future wireless communication systems and high-quality communication systems, many new methods have been developed. In recent years, the use of these devices has exploded. In the near future, this technology would require very efficient bandwidth features, such as bandwidth selection, frequency diversity, and high spectral accuracy. The networks are growing because current capacity is small, and further demand for a higher data rate is also expected. Furthermore, 4G (Fourth Generation) networks must be pleased with downlink mobile multimedia facilities of up to 20 - 100 Mbps and cellular uplink connectivity of 2 - 20 Mbps. To support high data rate transfer, a Multiple Access Wireless Modulation System, referred to as the Multi-Carrier Code Division Multiple Access (MC CDMA), has recently been proposed. Previous studies did not discuss transmitting the image data in the mc-cdma system on the rayleigh fading channel due to the large amount of noise that occurs as a result of the multipath fading channel, but by using a orthogonal spreading code (Orthogonal Variable Spreading Factor (OVSF)) the noise can be reduced and ofdm modulation reduces intersymbol interference (ISI). This paper discusses the bit error rate (BER) of theAdditive white Gaussian noise (AWGN) channel and rayleigh channel output of the MC-CDMA system using OVSF code. The relationship between the bit error rate and the signal to noise ratio is discussed when image transmited over AWGN and rayleigh channel using different modulation and then Comparison is made between the two channels.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0066808