Abstract :
Limited transmission resources such as scarce spectrum and energy are slowing down our response to ever increasing demand for higher data rates and lower latency in communication networks. Cognitive networking is a promising emerging research area that has demonstrated potential to tackle some of these challenges. Recent developments in cognitive radio research at the physical layer have mainly focused thus far on spectrum sensing, multi-user access to spectrum, and interference mitigation. Although cognitive networking at all layers will be considered, the emphasis of this special issue will be on MAC, Network, and higher layers to address network wide problems in the context of spectrum sharing and limited energy scenarios. This Special Issue seeks articles that address fundamental research issues in Cognitive Networking as well as articles that tackle engineering problems that need solving for a reduction to practice. Examples of topics of interest include, but are not limited to, the following: Heterogeneous cognitive radio networks; Innovative ideas for spectrum sharing; Spectrum management for quality-of-service (QoS); Spectrum policy and economics models; Game theoretic formulations; Small cell, relay, and cooperative cellular networks; Cross-layer optimization and resource management; Cognitive techniques and networks for 5G; Energy efficiency; White space networking; Multimedia transmission; Routing and transport layer protocols; Test-beds and experimentations; and Applications and services.