Time Delay Estimation from Multiband Radio Channel Samples in Nonuniform Noise

The multipath radio channel is considered to have a non-bandlimited channel impulse response. Therefore, it is challenging to achieve high resolution time-delay (TD) estimation of multipath components (MPCs) from bandlimited observations of communication signals. It this paper, we consider the problem of multiband channel sampling and TD...

Multiresolution Time-of-arrival Estimation from Multiband Radio Channel Measurements

Achieving high resolution time-of-arrival (TOA) estimation in multipath propagation scenarios from bandlimited observations of communication signals is challenging because the multipath channel impulse response (CIR) is not bandlimited. Modeling the CIR as a sparse sequence of Diracs, TOA estimation becomes a problem of parametric spectral...

Governance of the radio spectrum: An actorcentric framework for analysis

This paper is intended to contribute to the debate on the best way forward in governance of the radio spectrum. The traditional spectrum management regime has shown a number of weaknesses: Some of the portions of the spectrum are hardly used, when considered in time and place, and the regime is slow in responding to changes in the market and to...

Cognitive radio: Aligning the regulatory environment with the technology, a business case perspective

This paper proposes to use the perspective of the business case to deal with the alignment between the introduction of new technology and the regulatory environment. Although this perspective can be used more generally this paper deals with this perspective in the context of the alignment between the introduction of Cognitive Radio technology...