Direct-conversion radio receivers can offer highly integrated low-cost hardware solutions for
cognitive radio (CR) devices. Such receivers are, however, also very sensitive to various …

We use a crowdsourcing approach for RF spectrum patrolling, where heterogeneous, low-
cost spectrum sensors are deployed widely and are tasked with detecting unauthorized …

In this paper, we investigate the performance of conventional cooperative sensing (CCS)
and superior selective reporting (SSR)-based cooperative sensing in an energy harvesting …

Direct-conversion transceivers are in demand due to low implementation cost of analog front
ends. However, these transmitters or receivers introduce imperfections such as in-phase …

For the development of highly integrated, flexible and low-cost cognitive radio (CR) devices,
simple transceiver architectures, like direct-conversion receiver, are expected to be …

We investigate the spectrum sensing problem in orthogonal frequency-division multiplexing-
based cognitive radio networks under I/Q imbalance. We start by deriving the likelihood ratio …

In cognitive radio networks, secondary users (SUs) can use a frequency band when the
primary user (PU) of the band is not transmitting. Spectrum sensing is one of the methods …

Direct-conversion radio receivers can provide highly-integrated and low-cost hardware
solutions for cognitive radio (CR) devices. However, such receiver structures are also known …

We use a crowdsourcing approach for RF spectrum patrolling, where heterogeneous, low-
cost spectrum sensors are deployed widely and are tasked with detecting unauthorized …

This research addresses the performance degradation in receivers due to poor selectivity.
Poor selectivity is expected to be a primary limitation on the performance of Dynamic …