Given a set of communication links in cognitive radio networks, assume that the underlying
channel state information along each link is unknown; however, we can estimate it by …

The onset of wireless networks globally has thrust researchers in academia and industry to
solve problems related to this ever-growing field. In this paper, we study the multi …

We study a classical opportunistic wireless link scheduling problem in cognitive radio
networks with Signal to Interference plus Noise Ratio (SINR) constraints. Consider a …

Opportunistic spectrum access in a cognitive radio network has been a challenge due to the
dynamic nature of spectrum availability and possible collisions between the primary user …

Cognitive radio (CR) has been considered as a promising technology to enhance spectrum
efficiency via opportunistic transmission at link level. Basic CR features allow secondary …

We consider the following fundamental problem of dynamic spectrum scheduling in
cognitive radio networks. There are N secondary users, each of which gets access to a set of …

In this paper, we focus on a cross-layer resource allocation problem for an opportunistic
cognitive radio network, where secondary users (SUs) share a primary network's licensed …

We consider a cognitive radio network consisting of M primary users, M primary receivers, a
secondary user with K channels and K secondary receivers. A channel is assigned to each …

The opportunistic spectrum access (OSA) algorithms aim to maximize network throughput by
ensuring orthogonal channel allocation among secondary users (SUs) in cognitive radio …

In wireless communication networks, the network provider serves certain licensed primary
users who pay for a dedicated use of the frequency channels. However, not all the channels …