The cognitive radio (CR) paradigm for designing next‐generation wireless communications
systems is becoming increasingly popular, and different aspects of it are being implemented …

In this thesis new methods are presented for achieving spectrum sensing in cognitive radio
wireless networks. In particular, supervised, semi-supervised and unsupervised machine …

In cognitive radio (CR) networks, channel rendezvous is a significant operation for two
secondary users (SUs) to find a common available channel and establish a link between …

Cognitive Radio (CR) systems utilizes the underutilized spectrum in two ways ie overlay and
underlay mode. In overlay CR, a secondary user (SU) opportunistically access primary …

Cognitive Radio is a novel method of radio communication which enables more efficient use
of the frequency spectrum. This efficiency is achieved by dynamically allocating frequency …

Cognitive smartphone network (CSN), the smartphone network with cognitive radio features,
has been advocated as an effective approach to improve the transmission bandwidth …

Long-term evolution (LTE) networks are expanding worldwide due to their capability to
provide high data rates to fulfill the growing data needs of mobile subscribers. RF spectrum …