Investigations on cooperative spectrum handovers in cognitive radio networks

Abstract

The rapid proliferation of Information and Communication Technology (ICT) has led to an exponential increase in the demand for radio spectrum. The spectrum scarcity and under-utilization problem must be addressed via innovative technology, and standard telecommunication regulatory bodies, which need to obtain significant improvements in spectrum efficiency, and thereby increasing the dynamic performance of wireless devices compared to conventional spectrum management methods. Spectrum scarcity remains one of the major issues in the era of wireless communication systems and much of this need to be attributed to inefficient spectrum usageamongst licensed users. The Federal Communication Commission (FCC) has been examining various new standard techniques to manage the scarce Radio Frequency (RF) spectrum resources and to minimize overcrowding. Cognitive Radio (CR) networks are an innovative technology that focuses on the radical shift in both radio and networking technologies that ensemble with the potential to provide major performance gains in optimizing the efficiency of any spectrum. As cognitive radio domains have started to progress significantly, new research work is required to address some prevailing technical challenges like Dynamic Spectrum Allocation (DSA) methods, spectrum sensing, cooperative communications, cognitive network architecture protocol design, cognitive network security challenges and dynamic adaptation algorithms for cognitive system and the evolving behavior of systems in general newline