Massive and ubiquitous deployment of devices in networks of fifth generation (5G) and beyond wireless has necessitated the development of ultra-low-power wireless communication paradigms. Recently, wireless-powered networks with backscatter communications (WPN-BCs) has been emerged as a most prominent technology for enabling large-scale self-sustainable wireless networks with the capabilities of RF energy harvesting (EH) and of extreme low power consumption. Therefore, we provide a comprehensive literature review on the fundamentals, challenges and the on-going research efforts in the domain of WPN-BCs. Our emphasis is on large-scale networks. In particular, we discuss signal processing aspects, network design issues and efficient communication techniques. Moreover, we review emerging technologies for WPN-BCs to bring about the best use of resources. Some applications of this innovative technology are also highlighted. Finally, we address some open research problems and future research directions.

中文翻译：

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具有背向散射通信的大规模无线供电网络—全面调查

在第五代（5G）及以后的无线网络中，设备的大规模，无处不在的部署已导致超低功耗无线通信范例的发展。最近，具有背向散射通信的无线供电网络（WPN-BC）已经成为一种最杰出的技术，它使具有RF能量收集（EH）和极低功耗的能力的大规模自持无线网络成为可能。因此，我们提供了有关WPN-BCs领域的基础知识，挑战和正在进行的研究工作的全面文献综述。我们的重点是大型网络。特别是，我们讨论了信号处理方面，网络设计问题和有效的通信技术。此外，我们将回顾WPN-BC的新兴技术，以实现资源的最佳利用。还重点介绍了该创新技术的一些应用。最后，我们解决一些开放的研究问题和未来的研究方向。