Subject: [manet] Question about Cbr transmission

From: "Zhang Yanan" <[email-masked]>
Date: Thu, 19 Dec 2002 12:02:35 +0800

Hi,
I use DSR protocol to transmit CBR Packets. 

I can see in the network layer, the packet is transmited, but in the application layer can only receive a little. 
I have read the code of cbr transmit in App layer, I find that the CBR data has a seqNo, when does it increase? 
The Code is :

            GlomoAppCbrServer *serverPtr;
            GlomoAppCbrData data;

            if (data.seqNo >= serverPtr->seqNo)
            {
                serverPtr->numPktsRecvd++;
                //the statistical data of received Pkt ++
            }

This causes my App layer received Pkt fraction very bad(about 60%) ,but the Network layer Pkt delivery Fraction is very good(about 90%).

My simulation tool is Glomosim2.03.
The number of node is 50,   TERRAIN-DIMENSIONS  (1200, 1200),  RADIO-TX-POWER 2.45(radio range:500.4m)
The number of Cbr sources is 10(e.g. CBR  0  2 180 512 1S 0S 0S) , Simulation time is 900s.

Why my result is this ?

Thanks in Advance!!