Bhaskar

Try with OMNeT 4.1
We have not tried Castalia with the latest 4.2.

Consult the OMNET installation guide. Are you able to run the omnet
examples?

I tried fine tuning after your suggestion. I modified following parameters:

SN.wirelessChannel.sigma = 0
SN.wirelessChannel.bidirectionalSigma = 0
SN.node[*].Communication.Radio.mode = "IDEAL"
SN.node[*].Communication.Radio.collisionModel = 0
SN.node[*].Communication.MAC.phyDataRate = 1000
#SN.node[*].communication.MAC.dutyCycle = 0.1
#SN.node[*].communication.MAC.listenInterval = 10

Most of the parameters does not made much difference. However, changing
collisionModel to "0" improved performance by 3% and further 6% improvement
observed when DataRate is increased to 1000(Initially it was default value
"250"). I changed duty cycle to 0.1 and listen-interval to 0.1 so that
radio does not go to sleep mode. But no performance improvement
observed. What I observe from following results of % data aquired and
energy consumed by all nodes is that nodes are not performing any activity
from 1.6S to 2S and 2.1 to 3S. I am concerned about this part. Can you tell
why such behavior is observed. Is it because nodes goes to sleep mode
during that interval?

Thank you in advance.

                                           Time(S)              (%Data)
(Energy Consumed)
Percent data received :     0.327557890974,     12,          0,
Percent data received :     0.427563889559,     12,          0,
Percent data received :     0.527569888144,     12,          0,
Percent data received :     0.627575886729,     12,          0,
Percent data received :     0.727581885314,     12,          0,
Percent data received :     0.827587883899,     12,          0,
Percent data received :     0.927593882484,     12,          0,
Percent data received :     1.027599881069,     12,          0.0490625,
Percent data received :     1.127605879654,     18.4,       0.0701775,
Percent data received :     1.227611878239,     24.64,     0.0756984,
Percent data received :     1.327617876824,     31.84,     0.080985,
Percent data received :     1.427623875409,     35.36,     0.0874717,
Percent data received :     1.527629873994,     38.88,     0.0967976,
Percent data received :     1.627635872579,     42.4,       0.105455,
Percent data received :     1.727641871164,     42.4,       0.105455,
Percent data received :     1.827647869749,     42.4,       0.105455,
Percent data received :     1.927653868334,     42.4,       0.105455,
Percent data received :     2.027659866919,     42.4,       0.121039,
Percent data received :     2.127665865504,     45.76,     0.140779,
Percent data received :     2.227671864089,     45.76,     0.141044,
Percent data received :     2.327677862674,     45.76,     0.141044,
Percent data received :     2.427683861259,     45.76,     0.141044,
Percent data received :     2.527689859844,     45.76,     0.141044,
Percent data received :     2.627695858429,     45.76,     0.141044,
Percent data received :     2.727701857014,     45.76,     0.141044,
Percent data received :     2.827707855599,     45.76,     0.141044,
Percent data received :     2.927713854184,     45.76,     0.141044,
Percent data received :     3.027719852769,     45.76,     0.176231,
Percent data received :     3.127725851354,     49.28,     0.208954,
Percent data received :     3.227731849939,     49.28,     0.209172,
Percent data received :     3.327737848524,     49.28,     0.209172,
Percent data received :     3.427743847109,     49.28,     0.209172,
Percent data received :     3.527749845694,     49.28,     0.209172,
Percent data received :     3.627755844279,     49.28,     0.209172,
Percent data received :     3.727761842864,     49.28,     0.209172,

On Wed, Feb 8, 2012 at 7:15 AM, Athanassios Boulis <

Amit Gosavi

Amit, post to the right thread, not the most recent one (or randomly)

You really need to read the manual carefully.
This is not how you change the radio's data
rate: SN.node[*].Communication.MAC.phyDataRate = 1000
This is not how you get duty cycle=1 (i.e no sleep intervals): "changed
duty cycle to 0.1 and listen-interval to 0.1 "

You have build your own app and you need to debug it. There is no point
asking about strange behaviour of your app.