Re: [ns] Question ----about simulation with DCF!!! Thanks

[Felix Ko <felix.ko@mchp.siemens.de>]

Hi!

Pianca wrote:

> Hi there:
>
> I've simulated with the DCF in 802.11.
> And I'm wondering how is the parameter input for the DCF.
> 1. For example, what is the value of SIFS, DIFS,
>    maximum packet length, fragmentaion threshold?

Look into "mac802_11.{h,cc}".
Sifs and other parameters are defined as "DSSS_*", are given in "us" and

are stored in the PHY_MIB class.
pifs, difs, eifs and others are calculated in the Mac802_11 constructor.

> 2. I've used the CBR traffic, and set the bytes with 512.
>    what is the unit of 512? byte or bit?

They mean byte.

>
> Thanks.

Greetings!

Felix