Help on ADS 2004A - 802.11 system

[sbhalerao]

Hello to all,
I have working on ADS 2004 for quite some time now.. I have simluated 802.11 related PLL...
I now want to simulate a 802.11b system consisting of a WLAN signal source, a Channel model and a 802.11 receiver/antenna (I will then have a elaborate ckt. after the antenna )at the receiving end... I faced problems on the following things_
1. There are not many antenna designs available in ADS 2004A .. (or I didn't find them). 802.11 receiver is available- but I do need a antenna. Secondly, the available antennas don't seem suitable for my purpose... Any suggestions on your side.. ( I already went through with the manual)
2. The secoond and more pressing problem is that I don't know how distance will come into picture when I model this transmit-receive suystem... I didn't find any distance parameter in the WLAN Channel model...
I would be glad if any one of you could help me out with this...
Thanking you in advance,
Warm regards..
Shantanu...

 

[RFDave]

But your antenna model doesn't really matter. In this simulation, the only thing that the antenna does is convert from electromagnetic radiation to a received voltage, a simple gain should take care of that. I haven't looked at the channel models, but it seems that there should be a distance parameter there, to account for path loss over differring distances.

Dave

 

[saintdream]

the channel model you used may be awgn or multipath model, in your situation you need a path loss model, am I clear?