With the arrival of 5G mobile cellular networks and the proliferation of smart mobile devices, the wireless mobile data increase unprecedentedly, which will inevitably impose great pressure on the backhaul and degrade the QoE of mobile users. Edge computing or fog computing can provide enhanced service quality with increased network capacity and low latency, by utilizing elastic resources of edge or fog nodes, for example, computation, storage, and networking. Wireless caching, as an important technology for edge computing, has been attracting more and more focuses from both industry and academia. In caching-aided networks, popular data files can be proactively cached at the edge of mobile networks. These cached contents will be delivered to users directly from the edge of the networks. Meanwhile, the shift of wireless traffic from centrally generated voice service to locally created data also provides significant opportunities for caching, which is known as the trend of information-centric networks.

The goal of this special issue is to disseminate the latest research and innovations on the caching-aided networks in future 5G systems. High original research articles and review papers on this topic are also welcome.

Potential topics include but are not limited to the following:

• Theoretical framework of caching
• Mobile computing for caching
• Big data for caching
• Energy efficiency of caching-aided networks
• Interference management for caching-aided networks
• Caching-enabled D2D networks
• Caching-aided heterogeneous networks
• Caching for unmanned aerial vehicle (UAV) networks
• Network architecture and protocols for caching
• Resource allocation in wireless caching networks
• Security issues for caching
• Testbed design and implementation for caching-aided 5G networks
• Recovery (offloading) scheme for the failure of caching devices
• Cached-aided networks for edge/fog computing