What if you run the same simulation to the paper(s)? Anyway, you'd better speak to the original authors for this.
On 2/27/06, YoungTae Noh <[EMAIL PROTECTED]> wrote: > > Hi all, > > thx in advance, I built LEACH on ns-2.27. > > To check that the LEACH works correctly, after changing some > parameter, I simulated wireless.tcl file based on leach_test shell > script file. > > > With these changed parameters (in leach_test file) > ------------------------------------------------------------------------------------------- > # energy values. How much energy does each node have initially > eq_energy=1 > init_energy=0.25 > # stop is the time to stop the simulation if it is still running > stop=250 > # x,y is the size of the field > x=1000 > y=1000 > # bs_x, bs_y is the location of the base station in the field. > bs_x=50 > bs_y=150 > ------------------------------------------------------------------------------------------- > In addition to, > > Since the field 100by100 is changed into 50by50, > the coordinates of all nodes (in ns-2.27\mit\uAMPS\sims\100nodes.txt) > are divided by 2. > ------------------------------------------------------------------------------------------- > > > > > These changed parameters are for comparing results from this with the > results from the original paper below. > > W. Heinzelman, A. Chandrakasan, and H. Balakrishnan, "Energy-efficient > routing protocols for wireless microsensor networks," in Proc. > 33rd Hawaii Int. Conf. System Sciences (HICSS), Maui, HI, Jan. 2000. > > > > > > Unfortunately, the results bt'n two simultions are very different! > > > > > With using these parameters, my result in 'leach.out' file is around > -------------------------------------- > > At 139.09999999999638: > Total Energy = 40.297139964540001 > Total Data = 2510 > Total Alive = 4 > > Simulation complete. > > -------------------------------------- > > In this simulation,cluster heads are changed every 2.5sec. (thus, 56 > rounds totally) > > > But, in W. Heinzelman's paper, when the last node dies, the number of > total rounds is 665 with the same parameters. > > > This is somewhat strange. > > > > So, I want to ask you, > > > Did I make some mistakes? > > Or, should I port LEACH on NS-2.1b5 ? > > Thank for reading this. > > > > > > Hopely, waiting for reply. > >
