… It is crucial to estimate the location of primary users (PUs) for the development of cognitive
radio networks (CRNs). Great efforts have been made in the past to develop localization …

… communication among secondary users outside the transmission coverage area of primary
users or to track the primary users. A cognitive radio network based localization scheme is …

… networks to opportunistically use the spectrum and avoid interference to a primary user (PU)
[2]. In particular, information about PU location could enable several key capabilities in CR …

… accurately in authorized frequency bands, a novel primary user localization algorithm based
on compressive sensing (PU-CSL) in cognitive radio networks (CRNs) is proposed in this …

… if there are only two known secondary users available in the system. Also the … users). In this
article we present Range based primary user localization technique to find out the location of …

… Abstract—Information about primary user (PU) location can enable several key capabilities
in cognitive radio (CR) networks. In this paper we consider PU localization using received-…

… the primary user (PU) is available. In this paper, a cooperative algorithm to estimate the PU
location … signal strength (RSS) at several local secondary users (SUs) locations, is presented. …

… in the localization process but still interferes with the radio … precise localization of non-cooperative
primary users based on … In order to design a Cognitive Radio Network (CRN), we …

… location of primary users so that SUs can locate PUs and switch to free frequency upon
detection… To detect primary user in cognitive radio network, position information or location …

… In section IV we present the MSEbased power matching and fusion techniques used in
the localization of the primary user. Simulations illustrate the performance of the proposed …