[Tinyos-help] CTP and high traffic rate

[Avinash Sridharan]

The per node rate you can send at depends on the number of nodes in
your topology (and the interference graph). For a 20 node topology
(with around 3-4 hops) and packet size of 40 bytes (payload+header)
without aggregation you should be able to hit around 2 packets per
second. The average link quality also makes a difference. The average
link quality for these topologies is around 40-50%.

For 40 node topology the numbers might come down to approximately 1
packet per second. These numbers should hold for CTP with CBR traffic.

-Avinash

On Thu, Mar 5, 2009 at 2:05 PM, Omprakash Gnawali <gnawali at usc.edu> wrote:
> On Wed, Mar 4, 2009 at 11:58 PM, Martin van de Goor
> <martin.vandegoor at gmail.com> wrote:
> ...
>>>> In my setup, five (regular) packets are sent each second by one node.
>>>> These five packets are received by other nodes, aggregated into one
>>>> packet at each node, and sent using CTP.
>>>> The reason is that sometimes a node crashes and I'm trying to figure
>>>> out whether it is my code or CTP not being suited for this purpose.
>
> 1 pkt/second with five nodes is not high rate at all. You should be
> able to do several times that.
>
> - om_p
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-- 
Phd Dept. of Electrical Engineering
University of Southern California
http://www-scf.usc.edu/~asridhar