Cooperative spectrum sensing for RF-energy harvesting cognitive Radio networks

摘要: This article studies the impact of Radio Frequency (RF) energy harvesting on design and performance cooperative spectrum sensing in Cognitive Networks (CRNs). While recent literature have primarily focused mode selection sensing-throughput optimization at terminal level; this discusses challenges infrastructure networks, like IEEE 802.22 802.11af, using sensing. In particular, we develop two distributed strategies that cater for time-varying needs network terminals. It is shown these give adequate flexibility to without jeopardising throughput. Computer simulations are used show advantages proposed compared conventional decision-based