Special Issue on Green Internet of Things: Challenges and Future Opportunities—Part II

Internet of Things (IoT) is a key enabler for many modernized applications from marine monitoring to outer space exploration. However, the complicated operations (such as device interconnection, data transmission, and service optimization) will consume substantial energy in contrast with limited energy storage of IoT devices. To improve architectural sustainability and ultimately reduce systemic cost, the greenness design of IoT has become ever prominent. Particularly, with the continuous penetration of advanced information and communications (ICT) technologies (such as VR/AR, UAVs, and automobiles), our smart world is being surrounded by big IoT data that extremely craves for energy-efficient caching, computing, networking and securing.