WARP Project Forums - Wireless Open-Access Research Platform

You are not logged in.

#1 2014-Oct-13 08:33:36

Nithya Srinivas
Member
Registered: 2014-Mar-20
Posts: 23

WARPNet demo

Sir can you explain in detail the procedure to perform the WARPnet demo given in your website?
In the demo they have used an Iphone warpnet controller. but how to perform the same that is change the SNR, Modulation scheme, analyse the channel,throughput,etc using laptop??

Offline

 

#2 2014-Oct-13 08:41:45

Nithya Srinivas
Member
Registered: 2014-Mar-20
Posts: 23

Re: WARPNet demo

also what is the procedure for WARPnet setup can you explain in detail??

Offline

 

#3 2014-Oct-13 08:57:29

welsh
Administrator
From: Mango Communications
Registered: 2013-May-15
Posts: 612

Re: WARPNet demo

First, which WARPNet demo are you referring to?

When looking to work with the 802.11 reference design, you should start with the WLAN Experiments Framework Getting Started page.  Then you can look at the various examples to help you understand how to use the framework to control the nodes and create experiments to obtain the data you want.

In general, the demos are stand-alone packages meant to show specific capabilities of the hardware and software.  They are good examples to look at to understand how you can modify the hardware and software of the reference design to accomplish certain tasks but, in general, should not be used as a starting point for your own experiments.  It is better to start with the reference design and go from there.

Offline

 

#4 2014-Oct-13 09:05:15

Nithya Srinivas
Member
Registered: 2014-Mar-20
Posts: 23

Re: WARPNet demo

Sir what is the difference in the WARPnet demo if we use either 802.11 reference design or OFDM reference design?

Offline

 

#5 2014-Oct-13 09:23:21

welsh
Administrator
From: Mango Communications
Registered: 2013-May-15
Posts: 612

Re: WARPNet demo

The OFDM reference design uses WARPNet 1.0 which is an older version of the framework which is no longer being maintained.

The 802.11 reference design uses the newer WARPNet 2.0 framework and more specifically the WLAN Experiments Framework.

If you are just starting with your project / research, we would suggest using the 802.11 reference design over the OFDM reference design.

Offline

 

#6 2014-Oct-24 01:43:40

Nithya Srinivas
Member
Registered: 2014-Mar-20
Posts: 23

Re: WARPNet demo

K sir thank you for your suggestion.

Offline

 

#7 2017-Mar-23 04:04:46

hayrettin
Member
Registered: 2017-Feb-28
Posts: 11

Re: WARPNet demo

Can I use WLAN Experiments Framework for BER testing (TxPower vs. BER) as it is done in OFDM Reference Design - WARPnet Example ? Actually I want to test only the performance over PHY modifications in 802.11 Reference Design loaded on WARP v3 without using MAC.

Offline

 

#8 2017-Mar-23 11:27:29

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 5159

Re: WARPNet demo

Yes, you can use the wlan_exp framework and tools for BER testing with the 802.11 Reference Design. The old warpnet framework and scripts can only be used with the (very old) OFDM Reference Design.

Calculating BER requires comparing the transmitted payload to the received payload. You can do this with the wlan_exp log's TX_LOW and RX_OFDM entries. You will need to enable logging of full payloads (only MAC headers are logged by default). Payload logging is configured with the node.log_configure() method.

An important aspect to BER testing is that you can only compute BER for packets that are received. Packets that are not detected or that have SIGNAL/HT-SIG errors will not result in RX_OFDM log entries and cannot be included in BER calculations. This inherently biases BER results. Given this, it's a good idea to present BER results together with the corresponding PER, where "packet error" includes all non-received packets (i.e. PER = (Num_Tx - Num_Rx_FCS_Good)/Num_Tx).

Offline

 

#9 2017-Mar-24 07:57:59

hayrettin
Member
Registered: 2017-Feb-28
Posts: 11

Re: WARPNet demo

Thank you murphpo.

Offline

 

Board footer