Green Radio Despite "Dirty RF" Front-End

Provided by: EURASIP
Topic: Mobility
Format: PDF
In this paper, the authors show that the non ideal Radio Frequency (RF) front ends have to be corrected in order to contribute in a Green radio development. In fact, the effects of typical RF imperfections, like nonlinearities, carrier frequency offsets, and IQ imbalances, can be compensated for, when digital correction algorithms are applied. Such algorithms enable green applications (e.g., orthogonal frequency division multiple access for the uplink) despite a restrictive RF imperfection, or allow a less constrained hardware design, which reduces the chip area and the number of components (green design) or facilitate the reduction of spectral pollution and of power consumption (green transmission).

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