Wireless networks with their ubiquitous applications have become an indispensable part of
our daily lives. Wireless networks demand more and more spectral resources to support the …

Spectrum sensing is one of the essential tasks to have a cognitive radio system, which will
allow an unlicensed user, called secondary user, to utilize the spectrum while the licensed …

The requirements and key areas for 5G are gradually becoming more apparent, and it is
becoming clear that 5G will need to be able to deal with increased levels of diversity in both …

With the rapid growth of demand for ever increasing data rates, spectrum resources have
become more and more scarce. As a promising technique to increase the efficiency of the …

Spectrum bands are the backbone of wireless networks. Every user is allocated a fraction of
the spectrum from available fixed spectrum band. But, the fixed available spectrum band …

Wireless communications have gained huge attention over the past decades because of
continuously increasing demands. The main goal of all wireless network designers is to …

With the rapid development of digital and network technologies, Industry 4.0 is having a
huge impact on commerce. In the manufacturing sector, enterprises that produce many …

The device in conventional half-duplex (HD) WiFi networks cannot perform carrier sensing
while in data transmission, thus it suffers from long collision duration. To mitigate this …

In a cognitive radio network, a secondary user learns the spectrum environment and
dynamically accesses the channel, where the primary user is inactive. At the same time, a …

The recent significant progress in realizing FD systems has opened up a promising avenue
for increasing the capacity of future wireless networks. In addition to hardware design and …