[SOLVED] problem ns2 wireless moving nodes

nad_y · 11-08-2014, 12:57 AM

I have create a wireless simulation with 20 moving nodes and I have given a CBR connection between some nodes.But when I check trace file I can only find CBR traffic being sent from source but haven't received in destination node.
I use ns2.34 patch with ke liu's gpsr code. when I simulate CBR with static nodes it work as expected. Here I have attached tcl files and trace files of my simulation. Please I need to solve this problem immediately

https://dl.dropboxusercontent.com/u/...nction_20n.zip

knudfl · 11-09-2014, 05:19 AM

Don't know.

But please compare with the other examples in GPSR-KeLiu-examples_0614.tar.gz
https://drive.google.com/file/d/0B7S...ew?usp=sharing

nad_y · 11-09-2014, 06:15 AM

I found the Issue, it the default implementation of the ke-liu code. In there the radio range is set to 40m and hello packet interval to 5.0s by changing these parameters I was able to establish a connection.

wireless-gpsr.tcl from line 103 to 113

Code:

# The transimssion radio range 
#Phy/WirelessPhy set Pt_ 6.9872e-4    ;# ?m
#Phy/WirelessPhy set Pt_ 8.5872e-4    ;# 40m  **comment it
#Phy/WirelessPhy set Pt_ 1.33826e-3   ;# 50m
#Phy/WirelessPhy set Pt_ 7.214e-3     ;# 100m
Phy/WirelessPhy set Pt_ 0.2818       ;# 250m   **uncomment this line to change radio range to 250m
# ======================================================================

# Agent/GPSR setting
Agent/GPSR set planar_type_  1   ;#1=GG planarize, 0=RNG planarize
Agent/GPSR set hello_period_   1.0 ;#Hello message period **reduce the time tinterval to 1.0s