Questions tagged [symbol-energy]
The symbol-energy tag has no usage guidance.
9
questions
1
vote
1
answer
505
views
Es/N0 calculation on received symbols
What is the proper way to calculate the Es/N0 of demodulated and equalized symbols in simulation for BPSK and QPSK? I have seen various examples that include
calculating the standard deviation of the ...
- 521
0
votes
0
answers
106
views
How do I set GNU Radio Es/No?
I am trying to create a random signal in GNU Radio (using DVB-S2 specs for the physical layer) and transmit this signal using a USRP X310. This is shown below:
Problem: I would like to be able to ...
0
votes
1
answer
2k
views
Energy per symbol calculation
I am having trouble calculating my Energy per symbol and Es/No. Using these parameters and equation
$N_s = $Number Symbols
$R_s = $Symbol Rate
$T_s = $Symbol Time
$sps = $samples per symbol
x = signal ...
- 452
0
votes
1
answer
347
views
Calculating SNR & Es/No and placing noise onto a signal
I have a signal power of -12 dBW from a 16 QAM signal after the first RRC.
I want to create a channel SNR of 30 dB
I calculate my noise power from this, i.e. its -42 dBW and make the noise to add to ...
- 452
0
votes
1
answer
581
views
Calculating $E_b/N_0$ from given SNR ratio
I have the following formula:
$$\frac{S}{N}=\frac{E_b \cdot R_b}{N_0 \cdot B }$$
Where $S/N$ is of course SNR in dB, $E_b$ is energy per information bit, $ R_b$ is information bit rate in [bit/s], $...
- 83
2
votes
1
answer
371
views
Es/N0 with roll-off
I was trying to figure out if the relationship between SNR and Es/N0 changes with roll-off factor.
$W$: RF bandwidth.
$B$: Base band bandwidth. $W = 2B$.
$E_s$: Symbol energy.
$P_s$: Symbol power.
$...
- 41
2
votes
1
answer
107
views
Is there a relationship between Average energy of transmission and power saving
As mentioned in many books, the average energy of transmitted symbol is given by:
$E_s = (2/3)(M - 1) $
where $M$ indicated the modulation order.
Suppose that we are using in the first scenario $...
- 640
1
vote
1
answer
2k
views
Bits - symbols mapping in M-PAM beginner question
I am trying to implement a M-PAM modulator in Matlab without using the built-in functions. I am confused when it comes to the symbols-bits mapping.
Say I have a sequence of bits: ...
- 125
0
votes
1
answer
6k
views
Determine minimum distance between two symbols in 16-QAM using the average symbol energy
If the probability of bit error for a square M-ary QAM is
$P_M = (1-(1-P_\sqrt{M})^2)$
where
$P_\sqrt{M} = 2(1-\frac{1}{\sqrt{M}})Q(\sqrt{\frac{3E_s}{(M-1)N_0}})$
and $E_s$ is the average symbol ...
