0
$\begingroup$

Is the modulation method, or nature of modulation otherwise, between my phone and my WiFi modem, versus my phone and a cellular mast, different?

$\endgroup$
2
  • $\begingroup$ Yes. Modulation even changes for different WIFI protocols and connection speeds. $\endgroup$
    – Hilmar
    Commented Apr 25, 2021 at 15:50
  • $\begingroup$ yes. Wikipedia-level research could have answered that! $\endgroup$ Commented Apr 25, 2021 at 17:35

1 Answer 1

1
$\begingroup$

From google: 3G-5G appears to use OFDM —along with QPSK og QAM depending on channel conditions.

WiFi 802.11b used some CDMA-dialect, 802.11a and g uses OFDM along with BPSK, QPSK or QAM.

WiFi mainly use frequencies around 2.4Ghz, while cellphones have used lower frequencies around 900Mhz (due to larger distances). Both have recently added capability for using higher frequencies.

$\endgroup$
1
  • $\begingroup$ 3G is typically a specific kind of DSSS-CDMA. But things are still pretty different – due to the very different problems encountered by the respective channels. $\endgroup$ Commented Apr 25, 2021 at 17:36

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.