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- setting data rate for ieee802.11p
imeneHi,
I want to know what is the data rate corresponding for the default
parameters setting of 802.11p
thanks in advance
this is the code fragment of setting default parameters of 802.11p
Phy/WirelessPhyExt set CSThresh_ 3.162e-12 ;#-85 dBm
Wireless interface sensitivity (sensitivity defined in the standard)
Phy/WirelessPhyExt set Pt_ 0.001 Phy/WirelessPhyExt set freq_ 5.9e+9
Phy/WirelessPhyExt set noise_floor_ 1.26e-13 ;#-99 dBm for 10MHz bandwidth
Phy/WirelessPhyExt set L_ 1.0 ;#default radio circuit gain/loss
Phy/WirelessPhyExt set PowerMonitorThresh_ 6.310e-14 ;#-102dBm
power monitor sensitivity
Phy/WirelessPhyExt set HeaderDuration_ 0.000040 ;#40 us
Phy/WirelessPhyExt set BasicModulationScheme_ 0
Phy/WirelessPhyExt set PreambleCaptureSwitch_ 1
Phy/WirelessPhyExt set DataCaptureSwitch_ 0
Phy/WirelessPhyExt set SINR_PreambleCapture_ 2.5118; ;# 4 dB
Phy/WirelessPhyExt set SINR_DataCapture_ 100.0; ;# 10 dB
Phy/WirelessPhyExt set trace_dist_ 1e6 ;#
PHY trace until distance of 1 Mio. km (“infinty”)
Phy/WirelessPhyExt set PHY_DBG_ 0
Mac/802_11Ext set CWMin_ 15
Mac/802_11Ext set CWMax_ 1023
Mac/802_11Ext set SlotTime_ 0.000013
Mac/802_11Ext set SIFS_ 0.000032
Mac/802_11Ext set ShortRetryLimit_ 7
Mac/802_11Ext set LongRetryLimit_ 4
Mac/802_11Ext set HeaderDuration_ 0.000040
Mac/802_11Ext set SymbolDuration_ 0.000008
Mac/802_11Ext set BasicModulationScheme_ 0
Mac/802_11Ext set use_802_11a_flag_ true
Mac/802_11Ext set RTSThreshold_ 2346
Mac/802_11Ext set MAC_DBG 0
CharlesPandianSince the theoretical maximum raw data rate of 802.11b seems to be 11 Mbit/s, the default parameters possibly try to set that value. But, the parameters you mentioned here is not setting it.
For example in 802.11, the following line will set its default data rate.
Mac/802_11 set PLCPDataRate_ 1.0e6 ;# 1Mbps
(IEEE 802.11 – The WLAN standard was original 1 Mbit/s and 2 Mbit/s)
imene@CharlesPandian wrote:
Since the theoretical maximum raw data rate of 802.11b seems to be 11 Mbit/s, the default parameters possibly try to set that value. But, the parameters you mentioned here is not setting it.
For example in 802.11, the following line will set its default data rate.
Mac/802_11 set PLCPDataRate_ 1.0e6 ;# 1Mbps(IEEE 802.11 – The WLAN standard was original 1 Mbit/s and 2 Mbit/s)
thanks for your response
but I’m looking for setting data rate for 802.11p
I think that we can set dat rate with this instruction
Mac/802_11 set dataRate_
But I m not sure does it works in this case because I have read that the data rate depend in which type of modulation and the bandwidth of channel and for this reason I think that there is a relation betewen parameters , so I want to know what is this relation betewen thes parameters in order to set properly the data rate
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