Adrian,

The IEEE 802.11abg radio model knows nothing of the underlying protocols
associated with the traffic it transmits. The PCR curves apply to all
inbound over-the-air traffic.

In emane, the transport layer is responsible for mapping message
destinations to NEM addresses. The virtual transport does this by
mapping ethernet mac addresses to NEM Ids. All ethernet frames become
opaque data at the point they are sent downstream to the radio model.

The default IEEE 802.11abg curves use pktsize="128" to adjust POR based
on packet size:

https://github.com/adjacentlink/emane/wiki/IEEE-802.11abg-Model#packet-completion-rate

-- 
Steven Galgano
Adjacent Link LLC
www.adjacentlink.com


On 04/30/2015 04:50 PM, Adrian Granados Murillo wrote:
> Hi All,
> 
> I’m emulating an 802.11b/g network (4 nodes) using the IEEE 802.11abg
> model and location events. So far so good, I can create the topology I
> need and nodes that are far away can’t see each other or experience
> packet loss accordingly to PCR curves. The problem I’m having is that
> the PCR curves for packets sent over proprietary protocols (they have
> their own ether type value) don’t seem to have any effect on them. For
> example, in my topology, nodes A and B have a POR of about 60% based on
> the SINR of the link. If I run “ping” (ICMP), I see about 40% packet
> loss, which is correct. But if I run my proprietary protocol, I see 0%
> packet loss. Now, if nodes are too far away so that frames are dropped
> at the PHY layer, I see 100% packet loss in both cases as expected.
> 
> So, the question is: does PCR curves only apply for ARP or IP datagrams,
> for example? Or do they apply for all protocols and I’m just missing
> something about the configuration?
> 
> Thanks,
> Adrian
> 
> Adrian Granados
> Research Associate
> Intelligent Communication and Information Systems Laboratory
> Florida Institute of Technology
> Tel. 321-674-8262
> www.fit.edu <http://www.fit.edu>
> 
> 
> 
> 
> 
> 
> 
> 
> 
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> 
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