Description Usage Arguments Value See Also Examples
Receives a vector of bits (1's and 0's). The received vector is mapped to an in-phase (real) and quadrature (imaginary) 64-QAM (6 bit) symbol according to a Binary Reflective Gray Code (BRGC, see reference). In-phase and quadrature constellation points take on values -7, -5, -3, -1, +1, +3, +5, +7, respectively, corresponding to a symbol energy Es = 42. Mapping of bits to 64-QAM constellation points is illustrated in the following constellation.
-7+7i | -5+7i | +3+7i | -1+7i | +1+7i | +3+7i | +5+7i | +7+7i |
(100000) | (100001) | (100011) | (100010) | (100110) | (100111) | (100101) | (100100) |
-7+5i | -5+5i | +3+5i | -1+5i | +1+5i | +3+5i | +5+5i | +7+5i |
(101000) | (101001) | (101011) | (101010) | (101110) | (101111) | (101101) | (101100) |
-7+3i | -5+3i | +3+3i | -1+3i | +1+3i | +3+3i | +5+3i | +7+3i |
(111000) | (111001) | (111011) | (111010) | (111110) | (111111) | (111101) | (111100) |
-7+1i | -5+1i | +3+1i | -1+1i | +1+1i | +3+1i | +5+1i | +7+1i |
(110000) | (110001) | (110011) | (110010) | (110110) | (110111) | (110101) | (110100) |
-7-1i | -5-1i | +3-1i | -1-1i | +1-1i | +3-1i | +5-1i | +7-1i |
(010000) | (010001) | (010011) | (010010) | (010110) | (010111) | (010101) | (010100) |
-7-3i | -5-3i | +3-3i | -1-3i | +1-3i | +3-3i | +5-3i | +7-3i |
(011000) | (011001) | (011011) | (011010) | (011110) | (011111) | (011101) | (011100) |
-7-5i | -5-5i | +3-5i | -1-5i | +1-5i | +3-5i | +5-5i | +7-5i |
(001000) | (001001) | (001011) | (001010) | (001110) | (001111) | (001101) | (001100) |
-7-7i | -5-7i | +3-7i | -1-7i | +1-7i | +3-7i | +5-7i | +7-7i |
(000000) | (000001) | (000011) | (000010) | (000110) | (000111) | (000101) | (000100) |
Reference: E. Agrell, J Lassing, E. Strom, and T. Ottosson, Gray Coding for Multilevel Constellations In Gaussian Noise, IEEE Transactions on Communications, Vol. 53, No. 1, January 2007
1 | f64qammod(bits, Ns = 1, p = 1)
|
bits |
- received vector of bits (0's and 1's). |
Ns |
- N samples per symbol (default, Ns = 1) |
p |
- a vector defining the pulse shape of the transmitted waveform (default, p = 1) |
Returns a complex vector of 64-QAM symbols. If Ns > 1 then the returned signal is shaped with pulse shape, p.
Other rwirelesscom functions: eyediagram
;
f16pskdemod
; f16pskmod
;
f16qamdemod
; f16qammod
;
f64qamdemod
; f8pskdemod
;
f8pskmod
; fNo
;
fbpskdemod
; fbpskmod
;
fqpskdemod
; iqdensityplot
;
iqscatterplot
; stemplot
1 2 3 4 5 6 7 |
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.