Reconstruction performance of blind non uniforme sampling in cognitive radio context
Résumé
With the exponential growth in the means of communications, modifying radio devices easily and cost-effectively has become business critical. Software radio (SW) technology brings the flexibility, cost efficiency and power to drive communications forward, with wide-reaching benefits realized by service providers and product developers through to end users. One of the main objectives of SW is to propose new technologies to design radio terminals and wireless infrastructure able to support hardware-independent, multi-service operations and are remotely reconfigurable. Furthermore, Cognitive radio continues to gain popularity as it adapts intelligently to the radio environment, thereby dynamically managing the spectrum. As a result, the spectrum changes continuously and rarely remain constant. Keeping the aspects of Software radio and Cognitive radio in mind, we propose a sampler that not only adapts to the changes in the input signal but is also remotely reconfigurable and is, therefore, not constrained by the inflexibility of hardwired circuitry.