can we send the data packet

[mpaul]

Hi all,

Can we send packet actually containing the data,
for example, sending " x= 12.5 y=46.56" and receiving the same data
at the other end.

thanks

Manjinder

[Nicholas Loulloudes]

Hi, 

I am also wondering about this. Anyone with suggestions?

[Rafael R. Aschoff]

I think the most fast and easy way to do it is to use the Packet constructor which receives a buffer and its size.
ns3::Packet::Packet (uint8_t const * buffer, uint32_t size )

 

On Mon, Oct 3, 2011 at 9:08 PM, Nicholas Loulloudes <loullo...@gmail.com> wrote:

Hi, 

I am also wondering about this. Anyone with suggestions?

--
You received this message because you are subscribed to the Google Groups "ns-3-users" group.

To view this discussion on the web visit https://groups.google.com/d/msg/ns-3-users/-/4jdPCFOXMlQJ.

To post to this group, send email to ns-3-...@googlegroups.com.
To unsubscribe from this group, send email to ns-3-users+...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/ns-3-users?hl=en.

--
Rafael Roque Aschoff

Ph.D. Candidate

School of Informatics

 

City University London

Phone: +44 (0)20 7040 3252

http://www.city.ac.uk/informatics

[Alessandro Russo]

Have a look at routing protocols, how packets are built and sent.
Then, write the specification of your packet and serialize-deserialize methods and you are done.
 Alessandro  R.

[Nicholas Loulloudes]

HI, 

But how would i serialize a double?? The serialize-deserialize methods only deal with integers.

Best,

Nicholas.

[Alessandro Russo]

these might be useful

better: IEEE 754-2008 "[...] interchange formats: encodings (bit strings) that may be used to exchange floating-point data in an efficient and compact form [...]"
http://en.wikipedia.org/wiki/IEEE_floating-point_standard
http://en.wikipedia.org/wiki/Double_precision

easier:
http://en.wikipedia.org/wiki/Significand

so one double field is represented by  a few integer fields that can be used to compute the original double value without loosing precision.

cheers
 Alessandro  R.

--
You received this message because you are subscribed to the Google Groups "ns-3-users" group.

To view this discussion on the web visit https://groups.google.com/d/msg/ns-3-users/-/QEuPnQpRwQsJ.

[Nicholas Loulloudes]

Great.

Thanks for the tip.!