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Anonymous users2024-02-08aRepresents the ratio of the data subcarrier power to the pilot subcarrier power of the OFDM symbol without a pilot.
b represents the ratio of the data subcarrier power to the pilot subcarrier power of the ofdm symbol (class b symbol) with the pilot.
Power of symbol a = 10*log(1200*(10 ((.)
where 1200 is the total number of subcarriers of symbol A with a bandwidth of 20m (12*100);
Power of symbol b = 10*log(200*10 ( =.)
wherein, 200 is the total number of RS subcarriers on symbol B (2*100), and 800 is the total number of data subcarriers on symbol B (8*100), since PB=1, that is, B A =1, it means that the data subcarrier on symbol B and the data subcarrier on symbol A have the same power.
I still have some doubts about whether increasing the PB necessarily increases the PDSCH power. It is certain that PB will improve the performance of new estimates, but it will also reduce the data power used for signal detection, which will definitely have a negative impact on the performance of signal detection. Then the impact of the PB improvement on the overall system performance is not.
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Anonymous users2024-02-07What does PA and PB mean and what do they do?
a characterizes the OFDM without a pilot
The ratio of the data subcarrier power of the symbol (class A symbol) to the pilot subcarrier power.
b characterizes the OFDM with a pilot
symbol
Class B symbol) is the ratio of the data subcarrier power to the pilot subcarrier power.
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Anonymous users2024-02-06a: Characterize no.
Pilot. ofdm
symbol (a symbol).
Carrier power. and the ratio of the pilot subcarrier power. b characterizes the ofdmsymbol with a pilot
Class B symbol) is the ratio of the data subcarrier power to the pilot subcarrier power.
10*log(1200*(10^((
where 1200 is the total number of subcarriers of symbol A with a bandwidth of 20m (12*100); The power of the symbol b.
10*log(200*10^(
where 200 is the total number of rs subcarriers on symbol b (2*100) and 800 is the total number of data subcarriers on symbol b (8*100), since pb=1, i.e., b a
1, which means that the data subcarrier on symbol B and the data subcarrier power on symbol A are the same.
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