Descrizione

Key facts
  • Fading profiles: Rayleigh, Rice, lognormal, Suzuki, constant phase, pure Doppler, static path
  • Predefined fading settings for all important digital communications standards
  • Full flexibility due to individual configuration of all fading parameters
  • 3GPP-compliant birth-death, moving delay and high-speed train scenarios (with the R&S®SMW-K71 option)
  • MIMO fading simulation (via multiple installed R&S®SMW-B14 options and the R&S®SMW-K74 option)
  • Independent or correlated fading between multiple fading channels (with two or more installed R&S®SMW-B14 options)

Brief description The internal realtime fading simulator of the R&S®SMW200A is a cost-effective solution for testing the behavior of devices under realistic transmission conditions. A single R&S®SMW-B14 hardware fading module can simulate a SISO fading channel with up to 20 individually configurable fading paths. Predefined settings for digital communications standards such as LTE, 3GPP FDD, GSM, CDMA2000, Tetra or WLAN ensure simulation of standard compliant fading scenarios. The R&S®SMW200A can be equipped with up to four powerful R&S®SMW-B14 fading options, allowing up to 16 fading channels to be generated simultaneously (e.g. for MIMO applications). For further details on MIMO fading capabilities, please see “R&S®SMW-K74 MIMO/Routing” option.
Specifications
Fading simulation
Installable fading simulators   1, 2 or 4
Fading paths (per simulator)   20
Maximum fading bandwidth   160 MHz
Fading profiles   static path, pure Doppler, Rayleigh, Rice, constant phase
Fading path loss setting range 0 dB to 50 dB
  resolution 0.01 dB
  accuracy <0.01 dB
Fading path delay   0 s to 0.5 s
Minimum path delay resolution   2.5 ps
Speed range at f = 1 GHz 0 km/h to 4320 km/h
  accuracy <0.1 %
Doppler frequency setting range 0 Hz to 4000 Hz
  accuracy <0.1 %
Lognormal standard deviation 0 dB to 12 dB
  resolution 1 dB
  local constant at f = 1 GHz 20 m to 2000 m
Predefined settings standard LTE, 3GPP FDD WCDMA, CDMA2000®, 1xEV-DO, GSM, NADC, PCN, TETRA, HiperLan/2, WiMAX™ ITU
  with R&S®SMW-K71 Dynamic propagation models: 3GPP FDD moving delay propagation, 3GPP FDD birth-death fading, 3GPP FDD high-speed train fading, LTE high-speed train fading
  with R&S®SMW-K72 WiMAX™ SUI, DAB
  with R&S®SMW-K74 WiMAX™ MIMO, LTE MIMO, WLAN 802.11n MIMO, WLAN 802.11ac MIMO
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