Claudio Armani

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—In this paper, a comparison among different cooperative spectrum sensing approaches is provided. It is assumed that the secondary terminals autonomously perform local spectrum sensing and forward their decision to a fusion center. It combines the received data to obtain the global decision, i.e. the presence or the absence of the primary user in the(More)
— This paper presents a new uplink beamforming technique applied to the WCDMA system, here called partial-adaptive beamforming. Instead of concentrating upon the performance of every single user, the radiation pattern aims to maximize the performance of a group of users and only a limited number of beams has to be formed. We present two algorithms that(More)
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