Guest Editorial: Ultra-Low-Latency and Reliable Communications for 6G Networks

Recently, extensive research efforts have been dedicated to develop fifth-generation (5G) wireless mobile networks aimed at providing ubiquitous connections for anyone and anything irrespective of time and location. The number of connected devices and data traffic is increasing exponentially every day, and future data-intensive applications like AR/VR, holographic communications, V2X, autonomous driving, high precision manufacturing, and ultra-massive machine-type communications would demand high throughput, ultra-reliable transmission, extremely low latency and high energy efficiency. 6G is expected to extend 5G capabilities to higher levels where millions of connected devices and applications could operate seamlessly with trust, low-latency and high-bandwidth. Thus, major research is now focused on three areas, ultra-reliable and low latency communications (uRLLC), enhanced mobile broadband (eMBB), and massive Internet of Things (mIoT) in 6G wireless communications.