Bug 1936 – WiFi script (candidate 802.11p test script) works in ns-3.19, not in ns-3.20

Bug 1936 - WiFi script (candidate 802.11p test script) works in ns-3.19, not in ns-3.20


Summary:	WiFi script (candidate 802.11p test script) works in ns-3.19, not in ns-3.20

Status:	RESOLVED FIXED

Product:	ns-3
Classification:	Unclassified
Component:	wave module
Version:	ns-3.20
Hardware:	PC Windows

Importance:	P5 normal
Assigned To:	Daniel L.

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2014-06-20 17:02 UTC by Scott Carpenter
Modified:	2014-06-21 08:37 UTC (History)
CC List:	1 user (show)

See Also:

Attachments
VANET routing compare script (for debugging) (81.12 KB, text/plain) 2014-06-20 17:02 UTC, Scott Carpenter	Details
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Description Scott Carpenter 2014-06-20 17:02:56 UTC

Created attachment 1850 [details]
VANET routing compare script (for debugging)

I have a candidate WAVE/WiFi/802.11p example script which works for me in ns-3.19, but not for ns-3.20.  I suspect this is some kind of side-effect of changes to ns-3.20????  I cannot easily find the issue, but I suspect it has something to do with the way I am sending and/or receiving the WAVE packets and/or the routing data (i.e. AODV).  When I run the script using ns-3.19, there is output (10 simulation seconds, and an output line for each second showing non-zero PDR and Goodput.  However, when I run the same script in ns-3.20, the output is always PDR=0 and Goodput=0 (indicating that sent pkts are not being received in my code).  Can others please test and confirm, guide me, help? I just drop the script in scratch, and run as ./waf --run scratch/vanet-routing-compare-test

Comment 1 Scott Carpenter 2014-06-21 08:37:09 UTC

Fixed locally.  802.11p PHY mode was set up to use an invalid device rate.  ns-3.20 now logs this as incompatibility, and drops packets for unsupported rates (thanks, whoever added that!)