Mobile networks have a great challenge by serving the expected billions of Internet of Things (IoT) devices in the upcoming years. Due to the limited simultaneous access in the mobile networks, the devices should compete between each other for resource allocation during a Random-Access procedure. This contention provokes a non-depreciable delay during the device’s registration because of the great number of collisions experienced. To overcome such a problem, a framework called Random-Access Accelerator (RAA) is proposed in this work, in order to speed up network access in massive Machine Type Communication (mMTC). RAA exploits Device-To-Device (D2D) communications, where devices with already assigned resources act like relays for the rest of devices trying to gain access in the network. The simulation results show an acceleration in the registration procedure of 99%, and a freed space of the allocated spectrum until 74% in comparison with the conventional Random-Access procedure. Besides, it preserves the same device’s energy consumption compared with legacy networks by using a custom version of Bluetooth as a wireless technology for D2D communications. The proposed framework can be taken into account for the standardization of mMTC in Fifth-Generation-New Radio (5G NR).

中文翻译：

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通过启用设备到设备通信来加速IoT mMTC的5G新型无线电中的随机接入过程的框架

通过在未来几年中为预期的数十亿个物联网（IoT）设备提供服务，移动网络面临着巨大的挑战。由于移动网络中有限的同时访问，设备应在随机访问过程中相互竞争资源分配。由于经历了大量的冲突，因此该争用在设备注册期间会引起不可折旧的延迟。为了克服这个问题，在这项工作中提出了一个称为随机访问加速器（RAA）的框架，以便在大规模机器类型通信（mMTC）中加速网络访问。RAA利用设备到设备（D2D）通信，其中已经分配了资源的设备就像其他设备的中继一样，试图在网络中获得访问权限。仿真结果表明，与传统的随机访问程序相比，配准过程的加速为99％，分配频谱的自由空间直到74％。此外，通过使用定制版本的蓝牙作为D2D通信的无线技术，与传统网络相比，它可以保留同一设备的能耗。对于第五代新无线电（5G NR）中的mMTC的标准化，可以考虑所提议的框架。