Filter bank‐based multiple access in next‐generation satellite uplinks: A DVB‐RCS2‐based experimental study,International Journal of Satellite Communications and Networking

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Filter bank‐based multiple access in next‐generation satellite uplinks: A DVB‐RCS2‐based experimental study
International Journal of Satellite Communications and Networking ( IF 0.9 ) Pub Date : 2020-01-03 , DOI: 10.1002/sat.1341
Vassilis Dalakas ₁ , Eleftherios Kofidis _{2,

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Affiliation

In the context of the on‐going evolution of satellite communications (SatCom) systems to their next generation, and in the direction of their integration with fifth generation (5G) terrestrial networks, it is of interest to study in depth the applicability in realistic SatCom of waveforms that have shown promise to meet the 5G requirements. This paper presents a comparative study, based on total degradation (TD) over a range of output back‐off (OBO) values, on out‐of‐band emission and spectral efficiency, of frequency division multiple access (FDMA) schemes employing offset quadrature amplitude modulation‐based filter bank multi‐carrier (FBMC /OQAM), classical orthogonal FDMA (OFDMA), and their single‐carrier counterparts to illustrate the potential gains from the integration of the FBMC waveforms in the satellite context and standards. The air interface simulated follows the digital video broadcasting (DVB) family of standards for the satellite uplink, considering both time and frequency synchronization impairments and two typical input constellations. Our results confirm the superiority of the single‐carrier (SC) schemes in such a nonlinear environment. The SC‐FBMC waveform is shown to be the most practical candidate since it is shown to attain a TD performance similar to that of SC‐OFDM at absolutely no cost in spectral efficiency.

中文翻译：

下一代卫星上行链路中基于滤波器组的多路访问：基于DVB‐RCS2的实验研究

在卫星通信（SatCom）系统不断演进到下一代的背景下，以及在与第五代（5G）地面网络集成的方向上，深入研究在现实的SatCom中的适用性很有意义。已经显示的波形有望满足5G要求。本文基于偏移补偿正交频分多址（FDMA）方案，基于输出退避（OBO）值范围内的总劣化（TD），带外发射和频谱效率进行了比较研究。基于幅度调制的滤波器组多载波（FBMC / OQAM），经典正交FDMA（OFDMA）和他们的单载波对应物说明了在卫星环境和标准下从FBMC波形积分中获得的潜在收益。模拟的空中接口遵循卫星上行链路的数字视频广播（DVB）系列标准，同时考虑了时间和频率同步损伤以及两个典型的输入星座。我们的结果证实了在这种非线性环境中单载波（SC）方案的优越性。SC‐FBMC波形被证明是最实用的候选波形，因为它显示出与SC‐OFDM相似的TD性能，而频谱效率绝对没有任何成本。

更新日期：2020-01-03

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