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Cognitive radio by photonic analog-to-digital conversion sensing

Llorente, R. ; Morant, M. ; Alves , T. M. F. ; Puche, J.P. ; Romme, J.

Cognitive radio by photonic analog-to-digital conversion sensing, Proc IEEE International Workshop on Cross-Layer Design - IWCLD, Palma Mallorca, Spain, Vol. -, pp. 1 - 4, June, 2009.

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Abstract
This paper proposes a photonic analog-to-digital
converter (Ph-ADC) that can be used for localization,
fingerprinting and spectral management applications, indicated
for cognitive radio applications. The presented approach
comprises a time-stretch Ph-ADC with an optimum configuration
of optical and electrical amplification stages. This technique
increases the bandwidth and sensibility of electronic ADC and
can be used for detecting signals with extremely low power. The
usage of the proposed Ph-ADC jointly with cognitive radio
algorithms allows to minimize interference and to optimize user’s
capacity in a given picocell cluster area.