In this paper, we consider a time slotted cognitive radio network where multiple secondary
users (SUs) contend to access wireless channels. We propose and analyze a channel …

Secondary Users (SUs) can obtain channel use right opportunistically in cognitive radio
networks (CRNs) on the basis of not interfering with Primary Users'(PUs) transmission. In …

This letter proposes a multi-channel parallel transmission mechanism for channel
assignment in cognitive radio (CR) networks. The proposed mechanism enables secondary …

The explosive growth of wireless devices and data rate demands makes spectrum scarcity a
serious problem. A promising solution is to employ OSA, which enables SUs to seek and …

This Springer Brief investigates spectrum sharing with limited channel feedback in various
cognitive radio systems, such as point-to-point, broadcast scheduling and ad-hoc networks …

In this paper, we tackle the problem of opportunistic spectrum access in large-scale
cognitive radio networks, where the unlicensed Secondary Users (SU) access the frequency …

In this paper, we study dynamic load-balancing spectrum decision for a cognitive radio
network (CRN) that dynamically distributes packets from the secondary user (SU) to different …

In this study, we consider optimal opportunistic spectrum access (OSA) policies for a
transmitter in a multichannel wireless system, where a channel can be in one of multiple …

Cognitive radio networks enable opportunistic sharing of bandwidth/spectrum. In this paper,
we introduce optimal control and scheduling algorithms for multi-hop cognitive radio …

In this paper, we investigate the fundamental capacity limit of the cognitive broadcast
channels with opportunistic scheduling, where cognitive users (CUs) can share the same …