User selection for cooperative spectrum sensing in mobile cognitive radios

AGC-based SU Selection for Cooperative Spectrum Sensing with Direct-Conversion Cognitive Radio

“…The method proposed in [15] also explores correlations to perform SU selection. In [16], the SU selection algorithm is based on the SU velocity stability and on the correlation of users' signals. Algorithms for estimating the number of sources are applied in [17] to solve the SU selection problem.…”

Hybrid cooperative spectrum sensing scheme based on spatial–temporal correlation in cognitive radio enabled VANET

“…For the purpose of improving the stability of the topology, the SUs should be firstly removed with comparatively high moving speeds. Thus, similar to the description of the stability in [20], we firstly define the mobility stability of each SU according to the speed restrictions in (1) as…”

“…In [19], a user correlation and double threshold based CSS algorithm is designed for a dense CR-VANET to achieve a trade-off between sensing performance and system overhead. Moreover, a user selection algorithm relating to the speed and correlation of mobile SUs has been designed to deal with the frequent user selection problem in [20], in which a stability coefficient is defined for the purpose of selecting the SUs with considerably low speed for combination. Furthermore, by taking consideration of the temporal correlation among successive sensing slot, the studies of spatialtemporal sensing are gradually emerging in the static scenarios.…”