About the IEEE 802.11 WLAN options
R&S®SMM-K54/-K86/-K142/-K147
13User Manual 1179.1941.02 ─ 08
2 About the IEEE 802.11 WLAN options
2.1 Required options
The basic equipment layout for generating IEEE 802.11 WLAN signals includes:
●Baseband Generator (R&S SMM-B9)
●Frequency option (e.g. R&S SMM-B1006)
●Baseband real-time extension (R&S SMM-K520)
●Option IEEE 802.11a/b/g/n (R&S SMM-K54)
●Optional, option IEEE 802.11ac (R&S SMM-K86)
●Optional, option IEEE 802.11ax (R&S SMM-K142)
●Optional, option IEEE 802.11be (R&S SMM-K147)
You can generate signals via play-back of waveform files at the signal generator. To
create the waveform file using R&S WinIQSIM2, you do not need a specific option.
To play back the waveform file at the signal generator, you have two options:
●Install the R&S WinIQSIM2 option of the digital standard, e.g. R&S SMM-K255 for
playing LTE waveforms
●If supported, install the real-time option of the digital standard, e.g. R&S SMM-K55
for playing LTE waveforms
For more information, see data sheet.
2.2 About IEEE 802.11 WLAN technology
IEEE 802.11n is the extension of the WLAN IEEE 802.11a/g standard to nominal peak
data rates of 600 Mbps. Like IEEE 802.11a/g, IEEE 802.11n is also based on OFDM.
Also, IEEE 802.11n uses MIMO technology, up to 40 MHz bandwidth and special cod-
ing for increased throughput. The extension towards higher data rates is also known as
high throughput mode (HT mode) of 802.11n. The non-HT mode can be seen as the
part of 802.11n, which is backwards compatible to EEE 802.11a/g.
IEEE 802.11p is another extension to the WLAN IEEE 802.11a/g standard for the
usage of wireless access in vehicular environment, e.g. Car-to-Car (C2C), Vehicle-to-
Vehicle (V2V), intelligent transport systems (ITS).
IEEE 802.11ac further extends 802.11n to nominal peak data rates of 6240.0 Mbps.
Like IEEE 802.11a/g/n, IEEE 802.11ac is also based on OFDM. Also, IEEE 802.11ac
uses MIMO technology, up to 160 MHz bandwidth and special coding for increased
throughput. The extension towards higher data rates is also known as very high
throughput (VHT) mode of 802.11ac.
IEEE 802.11ax is aimed to improve the user experience and network performance in
dense deployments in the 2.4 GHz and 5 GHz band. It supports uplink and downlink
About IEEE 802.11 WLAN technology