[Ns-developers] Numerical values of the attributes inYansWifiPhy::GetTypeId

Mathieu Lacage mathieu.lacage at sophia.inria.fr
Tue Feb 24 04:26:31 PST 2009


On Tue, 2009-02-24 at 13:23 +0100, Hagen Paul Pfeifer wrote:

> 16.0206 dBm are 40mW. 40mW are ETSI standard for 802.11. 50mW
> is also possible for some countries. So it looks fine for
> 802.11a - for 802.11g you can raise this up to 20 dBm (for europe).
> 
> EnergyDetectionThreshold: -140dBm
> CcaMode1Threshold: -140.0 dBm

Both of these are known to not represent anything realistic.

> TxGain: 1 dB
> RxGain: 1 dB
> 
> TxGain/RxGain models a non-isotrope antenna. This value is too
> small to have any far-reaching influences.

yes, and we need to add a way to modelize non-isotropic antennas.

Mathieu



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