Information-Centric Cognitive Radio Networks for Content Distribution in Smart Cities

Multi-channel cognitive radio ad hoc networks (CRAHNs) and information-centric networking (ICN) will be indispensable for enabling envisioned multimedia-based smart services within the umbrella of smart cities. Cognitive radios enable the efficient and opportunistic use of spectrum bands by using vacant licensed channels, whereas information-centric networking improves content distribution by decoupling producers and consumers. In this work, we discuss the design of information-centric cognitive radio-based networking for multimedia-based applications in smart cities. We examine the potential of the joint design of CRAHNs and ICN, and thoroughly review fundamental aspects and challenges of CR and ICN for smart cities. Subsequently, we qualitatively study the capability of information-centric cognitive radio-based networking for improving network connectivity, content search and distribution, reliability and confined delay in smart city safety and infotainment-based applications. Finally, we highlight future research directions for the design of protocols for this envisioned network that will support smart cities.