利用MLD提高频谱抑制传输的频率利用效率

2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2018-12-01 DOI:10.1109/ICSPCS.2018.8631748

Motoi Shirai, Sumika Omata, T. Sugiyama

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引用次数: 0

摘要

频谱抑制传输通过抑制所需带宽(3dB带宽)来提高频率利用效率(吞吐量/所需带宽)来解决频段耗尽问题。然而，在频谱抑制传输中，由于将所需带宽抑制到小于奈奎斯特带宽而引起的码间干扰(ISI)，导致传输质量下降。在本文中，为了进一步改善传输质量退化和频率利用效率，我们提出了采用最大似然检测(MLD)和强大的前向纠错(FEC)的频谱抑制传输。然后，通过计算机仿真定量评价了该方案的误码率性能和频率利用效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Frequency Utilization Efficiency Improvement by Using MLD in Spectrum Suppressed Transmission

Spectrum suppressed transmission that increases the frequency utilization efficiency (throughput / required bandwidth) by suppressing the required bandwidth (3dB bandwidth) has been proposed to solve the frequency band exhaustion. However, in spectrum suppressed transmission, transmission quality degrades due to ISI (Inter Symbol Interference) caused by suppressing the required bandwidth to less than the Nyquist bandwidth. In this paper, in order to further improve transmission quality degradation and frequency utilization efficiency, we have proposed spectrum suppressed transmission applying MLD (Maximum Likelihood Detection) in addition to a powerful FEC (forward error correction). Then, we have quantitatively evaluated bit error rate performances and the frequency utilization efficiency in the proposed scheme by computer simulations.

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2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS)

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