Internet of Things (IoT) enables the connection of physical objects to the internet for exchanging information. Due to the massive number of IoT devices, cellular traffic is increasing exponentially in wireless networks. IoT devices require low latency, high reliability and massive connectivity. Fifth Generation (5G) networks are expected to provide promising solutions to meet these demands and improve the performance of IoT systems. 5G offers low latency, high reliability, and efficient data transmissions for large number of connected IoT devices. IoT systems employ gateways for efficient connectivity of various devices. Gateways have capabilities of integrating various protocols, handling data storage temporarily, analyzing the data, and transmitting that data between edge devices and cloud. IoT devices transmit data in frequent intervals, causing the gateway to be active all the time, leading to the increase in power consumption of the gateways. In this article, we focus on applying Discontinuous Reception (DRX) mechanism to IoT gateways. The proposed DRX at IoT gateways reduces the power consumption and improves the energy efficiency of IoT gateways. Our proposed work improves the energy efficiency of gateways by almost 30% compared to Relay Energy Efficiency (REE) based scheme.

物联网 (IoT) 使物理对象能够连接到互联网以交换信息。由于物联网设备数量庞大，无线网络中的蜂窝流量呈指数级增长。物联网设备需要低延迟、高可靠性和海量连接。第五代 (5G) 网络有望提供有前景的解决方案来满足这些需求并提高物联网系统的性能。5G 为大量连接的物联网设备提供低延迟、高可靠性和高效的数据传输。物联网系统采用网关来实现各种设备的有效连接。网关具有集成各种协议、临时处理数据存储、分析数据以及在边缘设备和云之间传输数据的能力。物联网设备以频繁的间隔传输数据，导致网关一直处于活动状态，导致网关的功耗增加。在本文中，我们将重点介绍将不连续接收 (DRX) 机制应用于物联网网关。物联网网关处提出的 DRX 降低了功耗并提高了物联网网关的能源效率。与基于中继能源效率 (REE) 的方案相比，我们提出的工作将网关的能源效率提高了近 30%。