Cooperative spectrum sensing for dynamic spectrum access to unused licensed spectrum
has been proposed as a solution to the spectrum scarcity problem. In this paper, a novel …

One of the key challenges in cognitive radio (CR) networks is to perform spectrum sensing in
environments characterized by shadowing and fading effects as well as non-Gaussian noise …

Cognitive radio is a radio communication technique, where unlicensed or cognitive users
monitor the spectrum for the existence of licensed (primary) users and have a …

In this paper, the performance of a multiple antenna-based cooperative spectrum sensing in
Cognitive Radio (CR) is discussed. The system model consists of a single Primary User (PU) …

Performance of a cooperative spectrum sensing with the help of a multi antenna based
cognitive relay (CR) is analyzed in this paper. A cognitive coordinator (CC) equipped with an …

Cognitive radio, which is expected to yield high frequency utilization, requires a highly
reliable sensing technique. Cooperative sensing techniques have been studied to meet this …

We consider cooperative spectrum sensing based on energy detection. The performance of
cooperative spectrum sensing is largely degraded if there are some malfunctioning sensing …

In cognitive radio network spectrum sensing is a fundamental element to detect the
presence of primary user. In this paper cooperative spectrum sensing scheme is employed …

Spectrum sensing, as a key technology in cognitive radio networks, needs to detect signals
from licensed primary radio systems to avoid harmful interference. However, due to the …

This paper presents a new cooperative spectrum sensing scheme, which allocates two
separate short periods for sensing and cooperation to achieve high capability of detecting …