Fixed threshold based conventional energy detection methods may not work well in low
signal-to-noise (SNR) cognitive radio (CR) scenarios where the ability to detect a primary …

The performance of a cognitive radio system depends on how well it can maximize the
usage of a free frequency band without causing any interference to the primary user. Thus …

In this paper, an energy detection scheme based on the pseudo bit error rate (BER)
estimation is investigated. In the proposed scheme, the basic strategy is to use the pseudo …

Cognitive Radio is a new paradigm in wireless communication to tackle the problem of
spectrum underutilization. One of the important functions of cognitive radio is spectrum …

Cognitive Radio (CR) is an intelligent system for opportunistically accessing the idle
resources and a solution for spectrum resources scarcity. The main purpose of this article is …

The energy based test is a popular detection scheme for cognitive radio (CR). However, it is
infeasible or confronted with difficulty in threshold determination when a reference noise …

Based on conventional single-threshold energy detection algorithm, we put forward a
double-threshold version in cognitive radio system, and then, we analyze the detection …

Spectrum sensing is one of the key issues in cognitive radio. Among the techniques for
signal detection, the energy detector (ED) is widely used due to its simplicity. However …

In cognitive radio, spectrum sensing is a fundamental task and is used to detect primary
user. Energy detection is a popular spectrum sensing technique. But detection performance …

Energy Detection is a popular technique to detect primary user (PU) in cognitive radio (CR)
compared with others. Due to less complexity and easier to be implemented makes energy …