一种基于能量检测的协作感知技术的改进

A Modified Cooperating Perception Technique Based on Energy Detection

认知无线电技术是解决无线资源紧缺的有效方法。基于非协作感知的不确定性,协作频谱感知方法具有更高的准确度,因此被人们所关注。文中提出了一种利用协作式能量检测的方法,通过利用近似计算将检测时间缩短,提高检测效率。经仿真结果证实,该方法能有效提高检测结果的准确性。

The cognitive radio technology is a effective method to resolve wireless short-supplied resource. As compared to the uncertainty of uncooperative perception, the cooperating frequency spectrum perception method has higher accuracy, so it has received much attention from the people. In this paper, a method by making use of the energy cooperating, and through using an approximate computation to shorten the detection time is proposed, and thus the detecting efficiency is improved. The simulation results indicate that this method can effectively raise the detection accuracy.