With the rapid deployment of new wireless devices and applications, the last decade has
witnessed a growing demand for wireless radio spectrum. However, the fixed spectrum …

In the past decade, cognitive radio and cooperative communication techniques have been
proposed in the literature for efficiently utilizing the radio resources. Cognitive radio is an …

Recent studies demonstrated that dynamic spectrum access can improve spectrum
utilization significantly by allowing secondary unlicensed users to dynamically share the …

In this correspondence, an adaptive cooperation diversity scheme with best-relay selection
is proposed for multiple-relay cognitive radio networks to improve the performance of …

Abstract Machine-to-machine (M2M) communications emerge to autonomously operate to
link interactions between Internet cyber world and physical systems. We present the …

In this paper, we investigate joint relay selection and power allocation to maximize system
throughput with limited interference to licensed (primary) users in cognitive radio (CR) …

This paper investigates the use of full duplex relaying (FDR) in cognitive radio systems.
Cognitive full duplex relay networks (CogFRNs) offer the advantage not only of increasing …

In this paper, we investigate power and channel allocation for cooperative relay in a three-
node cognitive radio network. Different from conventional cooperative relay channels …

In this paper, we consider a heterogeneous ad-hoc network where primary users may
cooperate with cognitive radio (CR) users for the transmission of their data. We propose a …

The benefits of cognitive radio networking (CRN) have been well recognized with the
emerging wireless applications in recent years. While many existing works assume that the …