  The present work focus on the implementation and analyze of performance of a
low-resolution OFDM system prototype with low-cost hardware. A software defined
radio (SDR) system was chosen in this implementation due to its various
advantages over a traditional radio system. Among the options of SDR devices
available, the use of universal software radio peripherals (USRP) was avoided
due to its high cost, despite its popularity in this field of research.
Alternatively, a combination of two low-cost SDRs, "Hackrf One" and "RTL- SDR
Blog V3" with the GNU Radio, a popular, free and open source radio software,
were used. Thus, it was possible to emulate the behavior of a low resolution
ADC in the receiver, characterize its performance and estimate its energy
savings. This allowed us to determine the feasibility of building a component
with the analog-to-digital conversion function with few bits of resolution. We
conclude that the performance of an ADC with at least 5 bits of resolution is
pretty reasonable and that this reduction in the number of bits, in comparison
to 8-bit ADC, represents a fairly expressive energy saving.
