[ns] Routing overhead of manet routing protocol (DSR)

2006-05-31 Thread boygullit

Hi all,
 Could anyone tell me how to calculate routing overhead of  DSR?

How about the header size of RTR ( DSR ) and MAC (802.11) ?

s 18.741626845 _1_ AGT  --- 681 cbr 10 [0 0 0 0] --- [1:0 0:0 32 0]
[679] 0 0
r 18.741626845 _1_ RTR  --- 681 cbr 10 [0 0 0 0] --- [1:0 0:0 32 0]
[679] 0 0
SFs 18.741626845 _1_ 681 [1 - 0] 1(0) to 0
s 18.741626845 _1_ RTR  --- 681 cbr 30 [0 0 0 0] --- [1:0 0:0 32 0]
[679] 0 0
s 18.742061845 _1_ MAC  --- 681 cbr 82 [13a 0 1 800] --- [1:0 0:0 32
0][679] 0 0
r 18.742296093 _0_ MAC  --- 681 cbr 30 [13a 0 1 800] --- [1:0 0:0 32 0]
[679] 1 0
s 18.742306093 _0_ MAC  --- 0 ACK 38 [0 1 0 0]
r 18.742321093 _0_ RTR  --- 681 cbr 30 [13a 0 1 800] --- [1:0 0:0 32 0]
[679] 1 0
r 18.742321093 _0_ AGT  --- 681 cbr 10 [13a 0 1 800] --- [1:0 0:0 32 0]
[679] 1 0
r 18.742610160 _1_ MAC  --- 0 ACK 38 [0 1 0 0]


According to the output trace file, the rtr layer header is 30-10=20 bytes
(how the header size got,  is  it the DSR routing header?),and the mac layer
header is  82-30=52bytes(PHY +MAC header). But why it transmit 82 bytes only
receive 30 bytes?
  How much is the biggest header size of DSR routing protocol using in RTR
layer because I find the value of the playload  in RTR is variable, not
always 20bytes?
I uesed the CBR / UDP, the packet size is 10 bytes. (if need consider the
IP/UDP/RTP header, the packet size should add 40 bytes ?)

Regards,

HuiYao


[ns] routing overhead

2006-03-06 Thread cp kothari

  
hi, i am following what u have mentioned in the mailing list but can u clarify 
why i am getting less routing overhead in DSDV for all situations as compared 
to AODV and DSR.

 secondly i am getting less e2e delay too in case of DSDV?

PLEASE REPLY.


...kothari...


[ns] ROUTING OVERHEAD

2006-03-02 Thread cp kothari

  
HI, 
  while calculating routing overhead of manet routing protocol i am getting 
least number of routing pkts in case of DSDV where as eveywhere it is said that 
DSDV has max overhead being proactive.
   i have compared AODV, DSR, DSDV for the 50 nodes, 500x500,siml 
time=100,pause time=0,10,20,40,100, pkt rate=4 tfc=cbr.
   i am using awk to calculate the routing overhead.


normlised routing load = total no of rtg pkt/data pkt recvd

routing pkt= RTR+AODV/DSR
  and for DSDV , it message+DSDV


for data pkt;   cbr+AGT

 IS MY PROCEDURE RIGHT

PLEASE REPLY..

...kothari...