Cognitive Networking for Next-G Wireless Communications

With the development and the promising future of nextgeneration wireless communications, cognitive networking has emerged as a promising technology to address spectrum scarcity and achieve higher data rate. Despite of its benefit, the employment of cognitive techniques at different layers brings nontrivial design challenges to many networking functionalities. In such context, this special issue is aimed at investigating and seeking potential solutions to various challenges in cognitive networking for next-generation (Next-G) wireless communications, such as cognitive communication architecture and topology control, spectrum sensing, sharing, andmanagementmechanisms, cognitive techniques and networking for Next-G wireless communications, and security and privacy in Next-G wireless communications. Specifically, the special issue is composed of the following papers. Here we present a high-level overview of them.