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International Journal of Information and Communication Sciences

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Volume 5, Issue 3, September 2020

  • Study the Linear Equivalent of the Binary Nonlinear Sequences

    Ahmad Hamza Al Cheikha

    Issue: Volume 5, Issue 3, September 2020
    Pages: 17-32
    Received: 8 July 2020
    Accepted: 28 July 2020
    Published: 27 August 2020
    DOI: 10.11648/j.ijics.20200503.11
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    Abstract: Linear orthogonal sequences, special M-Sequences, are used widely in the systems communication channels as in the forward links for mixing the information on connection and as in the backward links of these channels to sift this information which transmitted and the receivers get the information in a correct form. In current research trying to stud... Show More
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  • Adaptive Spatial Modulation over MmWave Channel with UPA

    Yuhong Liu, Duoying Zhang

    Issue: Volume 5, Issue 3, September 2020
    Pages: 33-40
    Received: 2 September 2020
    Accepted: 18 September 2020
    Published: 25 September 2020
    DOI: 10.11648/j.ijics.20200503.12
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    Abstract: Spatial modulation (SM) utilizes the transmit antenna index and a quadrature amplitude modulation (QAM) symbol chosen from a constellation diagram to improve spectral efficiency (SE) comparing to conventional modulation scheme. However, in the conventional SM system, the modulation mode applied to the active antenna is fixed, which degrades the bit... Show More
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