Optimization of Cooperative Secondary Users using Hard Fusion Rules
In cognitive radio networks the energy efficiency depends on the number of cooperative secondary users. As the
number of users increases the energy consumption increases and the energy efficiency decreases. So, to improve the energy
efficiency we proposed an optimization technique in this paper. The optimal number of cooperative secondary users is
calculated based on AND, OR and Majority fusion rules by maximizing the energy efficiency. The simulation results shows
optimal number of cooperative secondary users for AND, OR and MAJORITY fusion rules.
Index Terms - Cooperative spectrum sensing, Energy efficiency, Optimization, Hard fusion rules