Apparatus and method for energy-efficient cooperative spectrum sensing

摘要

The present invention relates to an energy efficient cooperative spectrum sensing method and apparatus. The present invention relates to a method for detecting a primary terminal, comprising: receiving from a K sensing nodes a sensing result relating to a signal strength of a primary terminal; based on a target detection probability that is a global detection probability predetermined to satisfy a requirement for protecting the primary terminal Calculating a false alarm probability of a newly selected sensing node, calculating a number of optimal sensing nodes based on the calculated false alarm probability and a function W that takes as parameters the energy consumed by the plurality of sensing nodes And receiving a sensing result from a sensing report group consisting of the optimal sensing nodes.