802.11g throughput in INET Framework 2.2.0

[olli]

Hi,

I am using OMNeT++ 4.4. and INET Framework 2.2.0. I have done some tests on the throughput of 802.11g by running the INET Wireless example "throughput": https://github.com/inet-framework/inet/blob/master/examples/wireless/throughput/omnetpp.ini
In this example I have changed the parameter bitrate as

**.wlan*.bitrate = 54Mbps

All other parameters are the same as in the example and the operation mode is by default set as "g". However, the AP module calculates a throughput of roughly 12 - 13 Mbps, while for 802.11g the throughput should be roughly 20-25 Mbps. What other parameters should I change in this setting in order to get suitable throughput values? The packet size is 1000 bytes

In the above example the setting is quite simple since there is no transport protocol involved. Additionally, I have also done experiments with the transport protocol involved by having a simple TCP file transfer application between a wireless host and an access point. I included a simple download thruputmeter between the MAC and MGMT modules for the client and an upload thruput meter between the mac and radio modules of the AP. In this setting, both the download throughput of the Wireless host and the upload throughput of the AP are again roughly 12-13 Mbps. In this setting I am using all the default values for the wireless NIC. TCP MSS is set as 1452 bytes.

For 802.11b the throughput values are quite suitable, roughly 5-6 Mbps. What parameters should I change in the Wireless NIC (mac, radio)  in order to get suitable throughput for 802.11g ?

Olli

[Iso]

Hi Olli

I have exactly the same problem as you regarding the maximum throughput for the 802.11g simulation. Did you find a solution? Or can anybody else help on that ?

Regards

Iso

[Alfonso Ariza Quintana]

Try this in the configuration

 

 

**.wifiPreambleMode = "SHORT"

**.controlBitrate = 5.5Mbps

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