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Design and Simulation of an Efficient Image Communication Scheme Via DS-CDMA

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Abstract

In this work, we try to design a DS-CDMA communication system model for the transmission of different types of images: binary, gray level and color. We adopted a transmission system of multiple users. During transmission of each image, we evaluated the noise and multiple access interference effects on the quality of DS-CDMA transmitted images which are inversely proportional to the length of the spreading sequence. Quality is assessed each time by the bit error rate (BER) estimation between received and original images. By increasing the signal to noise ratio to positive values, the BER tends to decrease, this results in a received image with fewer errors, thus without alteration which confirms Shannon equation. By using one user alone, the inter-user interference is canceled and the BER obtained is far lower than the BER obtained in presence of inter-user interferences. This can be resolved in hardware implementation using adequate filters.

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Abbreviations

FDMA:

Frequency division multiple access

TDMA:

Time division multiple access

DS-CDMA:

Direct sequence code division multiple access

BER:

Bit error rate

SNR:

Signal-to-noise ratio

SINR:

Signal-to-interference-plus-noise ratio

PSD:

Power spectral density

FH:

Frequency hopping

MAI:

Multiple access interference

BPSK:

Binary phase shift keying

PRBS:

Pseudo-random binary sequence

AWGN:

Additive white Gaussian noise

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Acknowledgments

We would like to express our sincere gratitude to members of DIMMER Laboratory and teachers of Telecommunication specialty, Faculty of Sciences and Technology, University of Djelfa (Algeria), for their kindness and providing us with working materials. This work was also supported by the Ministry of Higher Education and Scientific Research (Algeria) under Project No. J0202820090005.

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Authors and Affiliations

  1. Faculty of Sciences and Technology, Ziane Achour University, BP3117, Djelfa, Algeria

    Slami Saadi & Belaid Djaroum

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  1. Slami Saadi
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  2. Belaid Djaroum
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Correspondence to Slami Saadi.

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Saadi, S., Djaroum, B. Design and Simulation of an Efficient Image Communication Scheme Via DS-CDMA. Wireless Pers Commun 91, 33–50 (2016). https://doi.org/10.1007/s11277-016-3442-2

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  • DOI: https://doi.org/10.1007/s11277-016-3442-2

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