rogeret
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Hi,
It is know that the ISI can be compensated by a time-domain channel equalizer--a linear transversal filter.
From the following paper, tt is said that "the number of adaptive tap coefficients is on the order of the number of data symbols spanned by the multipath".
For ex,
If
RMS delay spread=10us
data rate=1MHz
Then
number of taps=10us/(1/1MHz)=10
But I dont know why the number of taps should be determined like this! Could you tell me??
REFERENCE
D. Falconer, S. L. Ariyavisitakul, A. Benyamin-Seeyar, and B. Eidson, “Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems”, IEEE Communications Magazine, vol. 40, no. 4, pp. 58-66, 2002.
It is know that the ISI can be compensated by a time-domain channel equalizer--a linear transversal filter.
From the following paper, tt is said that "the number of adaptive tap coefficients is on the order of the number of data symbols spanned by the multipath".
For ex,
If
RMS delay spread=10us
data rate=1MHz
Then
number of taps=10us/(1/1MHz)=10
But I dont know why the number of taps should be determined like this! Could you tell me??
REFERENCE
D. Falconer, S. L. Ariyavisitakul, A. Benyamin-Seeyar, and B. Eidson, “Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems”, IEEE Communications Magazine, vol. 40, no. 4, pp. 58-66, 2002.