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Information Journal Paper

Title

Introducing an OFDM-CDMA Hybrid Algorithm Based on the Multiple Access Technique to Improve Indoor Visible Light Communication Link

Pages

  131-137

Keywords

Visible Light Communication (VLC)Q1
Code-Division Multiple Access (CDMA)Q1
Orthogonal Frequency Division Multiplexing (OFDM)Q1
Light Emitting Diode (LED)Q1

Abstract

 Transmission of information through indoor optical telecommunication systems is one of the safe methods against eavesdropping due to the non-emission of radio waves. This method is one of the jamming-resistant techniques for military applications. In this paper, a hybrid algorithm using OFDMCDMA based on the multiple access technique is presented. This algorithm improves the efficiency of visible light communications (VLC) and increases the number of indoor users. The simulation results show that the BER parameter for 4 users improves from 0. 035 to 0. 0006 when the SNR is 0dB. Also, the bit transmission rate for 4 users increases from 1 MB/s to 5 MB/s for SNR= 30 dB. Besides, the number of users can increase from 4 users to 20 users for the same bit rate and BER by using the proposed hybrid algorithm. These improvements were made in exchange for increasing the complexity of the system due to the wide spectrum.

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    APA: Copy

    BAYAT, M., SAMADI, R., & ABDOLLAHI, H.. (2020). Introducing an OFDM-CDMA Hybrid Algorithm Based on the Multiple Access Technique to Improve Indoor Visible Light Communication Link. JOURNAL OF ELECTRONIC AND CYBER DEFENCE, 8(3 (31) ), 131-137. SID. https://sid.ir/paper/405135/en

    Vancouver: Copy

    BAYAT M., SAMADI R., ABDOLLAHI H.. Introducing an OFDM-CDMA Hybrid Algorithm Based on the Multiple Access Technique to Improve Indoor Visible Light Communication Link. JOURNAL OF ELECTRONIC AND CYBER DEFENCE[Internet]. 2020;8(3 (31) ):131-137. Available from: https://sid.ir/paper/405135/en

    IEEE: Copy

    M. BAYAT, R. SAMADI, and H. ABDOLLAHI, “Introducing an OFDM-CDMA Hybrid Algorithm Based on the Multiple Access Technique to Improve Indoor Visible Light Communication Link,” JOURNAL OF ELECTRONIC AND CYBER DEFENCE, vol. 8, no. 3 (31) , pp. 131–137, 2020, [Online]. Available: https://sid.ir/paper/405135/en

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