Evaluating Wireless Systems: What to do, & What not to do David Millians millia@uga.edu ·...

Evaluating Wireless Systems: What to do, &

What not to doDavid Millians

millia@uga.edu · @millia13 · @ugaetc

University of GeorgiaEducational Technology Center

What this is.

• Stats for wireless throughput• Methods• What we did• What you shouldn’t do• If time, what to look for in wireless

Evaluating Wireless

• Bodies method (Bakeoff)• Heat Map Method (Way Cool)• Fancy Spectrum (Software Radios)• Client/Server Method

Client/Server

• Server collects the data• Client sends the data• Test in a variety of ways

Iperf

• Free!• Iperf.sourceforge.net• Cross-platform

Including iOS- pay? Android?

• Hasn’t been updated since 2008 (?) (!)• en.wikipedia.org/wiki/Iperf• Can test ANY network

Iperf Usage• Gotta get it.

Source (Main) Pre-compiled (http://www.iperfwindows.com/

)(!)or… http://sourceforge.net/tracker/?func=detail&aid=3470334&group_id=128336&atid=711373

• Gotta build the command line Jperf Man Page/ Help Text

• Gotta start the server• Gotta kill firewalls

Values for Client

• Size of data packets• Type of data- TCP/UDP• Restrict bandwidth• Number of clients• Bytes vs. Time

Values for Server

• Service (dæmon) vs Command Line• Logging (or cut’n’paste)• Bytes- Digital vs Decimal• Interval

• Interval

• Interval!

The Data

Questions?