Optimal Energy-Efficient Sensing and Power Allocation in Cognitive Radio Networks

Algorithm 2

Optimal sensing time and power allocation for energy-efficient CRN.

Initialization: 𝑛=0

For  𝜏=0∶𝑇

     Given 𝜏_𝑛=𝜏, solve optimal 𝐩_𝑛 to problem (18) and obtain

     maximum energy efficiency 𝜂_𝑛.

     𝑛←𝑛+1

 end

 𝑛^∗=argmax𝜂_𝑛

Output: optimal 𝜏_𝑠=𝜏_𝑛∗, 𝐩=𝐩_𝑛∗ and 𝜂_max=𝜂_𝑛∗.