Spectrum decision is the ability of a cognitive radio (CR) to select the best available
spectrum band to satisfy secondary users'(SUs') quality of service (QoS) requirements …

We conduct the first detailed measurement analysis of network resource usage and
subscriber behavior using a large-scale data set collected inside a nationwide 3G cellular …

The fingerprint positioning has achieved remarkable results in indoor localization tasks, but
the method usually relies on a large amount of fingerprint data to build a fingerprint …

Compressive sensing is a new signal processing paradigm that aims to encode sparse
signals by using far lower sampling rates than those in the traditional Nyquist approach. It …

In this paper we present results from the first application of robust geostatistical modeling
techniques to radio environment and coverage mapping of wireless networks. We perform …

A collaborative algorithm is developed to estimate the channel gains of wireless links in a
geographical area. The spatiotemporal evolution of shadow fading is characterized by …

In this paper we analyze the efficacy of basic path loss models at predicting median path
loss in urban environments. We attempt to bound the practical error of these models and …

Recent advances in radio environmental mapping enable novel, practical and efficient
cognitive radio and dynamic spectrum access solutions. A crucial aspect of such solutions is …

We consider the problem of optimal channel access to provide quality of service (QoS) for
data transmission in cognitive vehicular networks. In such a network, the vehicular nodes …

Providing proper economic incentives is essential for the success of dynamic spectrum
sharing. Cooperative spectrum sharing is one effective way to achieve this goal. In …