Combination of Centralized & Decentralized Database and Terminal-based Spectrum Sensing for Secondary Spectrum Access

Markus Mueck (1) , Marco Di Renzo (2) , Mérouane Debbah (3) , Tobias Renk (4)

1 Infineon Technologies AG [München]
2 L2S - Laboratoire des signaux et systèmes
3 Chaire Radio Flexible - Chaire Radio Flexible Alcatel-Lucent/Supélec
4 Karlsruher Institut für Technologies

The general opportunistic spectrum usage approach has been broadly studied and published in the scientific literature. Recent publications, however, consider specific applications which differ from the generic opportunistic terminal approach. In this framework, [10] has recently introduced the concept of opportunistic relay. The authors outline the advantages and possible gains of using opportunistic relay nodes in the context of a cellular communication network. More specifically, if TV White Space frequencies in the range of 470 MHz to 790 MHz are available, they can be exploited with the following potential advantages: i) lighter infrastructure deployment, ii) increased spectral efficiency through less propagation losses and iii) increased spectral efficiency through extended macro diversity. This paper further illustrates how the approach in [10] is aligned to the regulatory requirements. In particular, the paper focuses on problems related to the detection of white spaces, by jointly exploiting information available from central & distributed databases and from distributed spectrum sensing algorithms at the relay nodes.

Domaines: Réseaux et télécommunications [cs.NI]

Markus Mueck, Marco Di Renzo, Mérouane Debbah, Tobias Renk. Combination of Centralized & Decentralized Database and Terminal-based Spectrum Sensing for Secondary Spectrum Access. IEEE International Conference on Wireless Information Technology and Systems, Sep 2010, United States. pp. 1-4. ⟨hal-00547048⟩