Cognitive radio (CR) is a promising wireless technology that provides efficient spectral
usage. Medium Access Control (MAC) has an important role in several cognitive radio …

Wireless sensor networks are utilized in medical area to gather multimedia information from
multiple sources, such as video streams, images, voice, heartbeat and blood pressure data …

Cognitive radio is a technology that allows the unlicensed users to access the licensed
spectrum based on sensing information perceived by the users. Cognitive radio user …

The adjacent channel interference (ACI) resulting from imperfect filtering can severely
degrade the performance of any wireless communication system. Despite this fact, most of …

With the advent of various emerging wireless products, the usage of limited spectrum has
grown exponentially in the recent years. In the next few years, that mobile data traffic …

As a promising approach to the rendezvous problem in cognitive radio networks (CRNs), a
blind rendezvous paradigm has recently spawned various asynchronous channel-hopping …

The major goal of IEEE 802.11 ac is to provide very high throughput (VHT) performance
while at the same time guaranteeing backward compatibility. To achieve this goal, 802.11 ac …

Cognitive radio networks can improve spectrum efficiency by allowing primary users (ie,
authorized users) to share spectrum with secondary users (ie, unauthorized users) when the …

Vehicle images captured by traffic and surveillance video cameras in various conditions
usually exhibit several unexpected variations that worsen vehicle classification. These …

Time-division-multiple-access-based cognitive radio networks allow each licensed primary
user to transmit its packets exclusively. The available idle slots present an opportunity to the …