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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >A Novel Four Single-Sideband M-QAM Modulation Scheme Using a Shadow Equalizer for MIMO System Toward 5G Communications
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A Novel Four Single-Sideband M-QAM Modulation Scheme Using a Shadow Equalizer for MIMO System Toward 5G Communications

机译：用于MIMO系统的面向影子5G通信的新型四单边带M-QAM调制方案使用影子均衡器

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摘要

Single-sideband (SSB) modulation through Hilbert transformation has successfully transmitted data using only half the bandwidth of the traditional scheme for the same amount of contained information. Toward this end, the four single-sideband (4-SSB) approach for high order modulation is a promising approach for the next-generation communications by applying soft-input soft-output (SISO) equalizer algorithms over orthogonal frequency division multiplexing (OFDM). However, OFDM is challenging for realizing the feasible 5G communications, compared to the emerging techniques, e.g., non-orthogonal multiple access (NOMA), orthogonal multiple access (OMA) or multiple-input multiple-output (MIMO). Since the 4-SSB is an orthogonal modulation which was successfully applied over the traditional OFDM, in this article, we propose a novel 4-SSB modulation scheme over OFDM Guard Interval (GI) and massive MIMO. Besides the carrier signal, from the receiver side, we also apply the shadow equalizer algorithm in the uncoded and coded environment using turbo codes to achieve the 4-SSB with high efficiency from low complexity and energy consumption for 5G. The evaluation results validate that our system consumes lower energy due to low complexity gained from same number of iterations without the heavy decoding as of the 4-SSB SISO based on the turbo equalizer. In addition, the 4-SSB over the OFDM GI achieves the best performance among the relevant approaches conducted in 4-SSB. The proposal then acts as a practical communication system designed to solve the inter-symbol interference (ISI) induced by additional Hilbert transform in the wireless environment toward fifth generation (5G), given that turbo code is considered as a potential channel coding scheme for 5G radio specification.
机译：对于相同数量的包含信息，通过希尔伯特变换进行的单边带（SSB）调制仅使用传统方案带宽的一半成功传输了数据。为此，通过在正交频分复用（OFDM）上应用软输入软输出（SISO）均衡器算法，用于高阶调制的四个单边带（4-SSB）方法是一种有希望的下一代通信方法。 。然而，与新兴技术相比，OFDM对实现可行的5G通信具有挑战性，例如非正交多址（NOMA），正交多址（OMA）或多输入多输出（MIMO）。由于4-SSB是一种正交调制，已成功应用于传统OFDM上，因此在本文中，我们提出了一种基于OFDM保护间隔（GI）和大规模MIMO的新颖的4-SSB调制方案。除了载波信号之外，我们还从接收器侧在使用Turbo码的未编码和编码环境中应用阴影均衡器算法，从而以低复杂度和5G能耗实现了高效率的4-SSB。评估结果证实，由于基于Turbo均衡器的4-SSB SISO的相同数量的迭代获得了较低的复杂性，而无需进行繁重的解码，因此我们的系统消耗的能量较低。此外，基于OFDM GI的4-SSB在4-SSB中执行的相关方法中达到了最佳性能。该建议书然后充当一种实际的通信系统，旨在解决由于将turbo码视为5G的潜在信道编码方案而将无线环境中朝第五代（5G）的附加希尔伯特变换引起的码间干扰（ISI）的问题。无线电规范。

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