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PHYDYAS prototype filter is used with overlapping factor κ=4.
(a) The frequency-domain modulator configuration for overlapping factor K =4.
The larger the overlapping factor K, the more localized the signal will be in frequency.
In this paper, we consider two different pulse shapes with overlapping factor set to K=4.
Filter banks, designed as in [28], are employed, with overlapping factor K=3.
The FBMC transmitter and receiver use the PHYDYAS project prototype filter[31], with overlapping factor K = 4.
(b) The frequency-domain demodulator configuration for overlapping factor K =4. Figure 3a,b shows two nonadjacent and nonoverlapped subchannels with indexes k and k +2.
The smaller the overlapping factor A (e.g., A=0.01), the more sparse the impulsive noise, yet with the stronger impulsive power.
For FBMC system, the prototype coefficients are assumed to be equal to PHYDYAS coefficients with overlapping factor and are defined by [24, 37].
This is due to the fact that the prototype filter overlapping factor K=4. So, it is of considerable interest to consider the cases of ∂={1,2,3}.
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On the other hand, the overlapping factor may in fact have an effect on the PAPR when considering the different techniques (i.e. slightly modified algorithms are required if a different overlap factor is chosen).
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