Cognitive radio (CR) technology opens the licensed spectrum bands for opportunistic usage
and initiates spectrum trading to improve the spectrum utilization. In this paper, we …

To fully unleash the potentials of the cognitive radio (CR) paradigm, new challenges must be
addressed. Specifically, as regards the network layer, the problem of the route priority, ie, the …

In this paper, the joint route and channel selection problem with reliability guarantee in
cognitive radio network (CRN) is addressed. Since the interference to licensed spectrum …

Cognitive radio networks (CRN), in their quest to become the preferred next-generation
wireless communication paradigm, will depend heavily on their ability to efficiently manage …

Abstract Although Cognitive Radio technology brings efficient spectrum usage and effective
interference avoidance, it also brings new challenges to routing in multi-hop Cognitive …

Cognitive radio networks (CRNs) are expected to improve spectrum utilization efficiently by
allowing secondary users (SUs) to opportunistically access the licensed spectrum of primary …

This paper presents a distributed cross-layer optimization algorithm for a multihop cognitive
radio network, with the objective of maximizing data rates for a set of user communication …

The fixed spectrum allocation causes inefficient utilization of licensed spectrum bands, due
to which Cognitive Radio Networks (CRNs) emerged as a promising solution. Cognitive …

The essential impediment to apply cognitive radio (CR) technology for efficient spectrum
utilization lies in the uncertainty of licensed spectrum supply. In this paper, we propose a …

Spectrum trading creates more accessing opportunities for secondary users (SUs) and
economically benefits the primary users (PUs). However, it is challenging to implement …