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In this contribution we compare different realizations of the polyphase networks employed in Offset QAM based Filter Bank Multicarrier (OQAM-FBMC). Our objective is to evaluate the structures' computational cost and robustness for very low complexity implementations of the prototype filter coefficients. We compare a direct form, a classical lattice realization, where in both the Canonical Signed Digit...
Compressive sensing is a recent technique for estimating a sparse vector from a reduced number of observations. Several algorithms have been developed and studied in this context. However, the reduction of number of samples (or the sampling rate) is one aspect of compressive sensing. In fact, the quantization of the observations, which is generally unavoidable in practice (due to the analog-to-digital...
In multiple-antenna communications, as bandwidth and modulation order increase, system components must work with demanding tolerances. In particular, high resolution and high sampling rate analog-to-digital converters (ADCs) are often prohibitively challenging to design. Therefore ADCs for such applications should be low-resolution. This paper provides new insights into the problem of optimal signal...
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