[net2-wg] ctp with new parameters

Omprakash Gnawali gnawali at usc.edu
Fri Jun 15 09:28:31 PDT 2007


Some CTP results from 56 node experiment with SEND_INTERVAL = 8192 and
full transmit power.

With
    ALPHA = 2,
    DLQ_PKT_WINDOW = 5,
    PARENT_SWITCH_THRESHOLD = 15,


http://enl.usc.edu/~om_p/net2/expt-06162007-1/
http://enl.usc.edu/~om_p/net2/expt-06162007-2/


With
    ALPHA = 5,
    DLQ_PKT_WINDOW = 5,
    PARENT_SWITCH_THRESHOLD = 2,


http://enl.usc.edu/~om_p/net2/expt-06162007-3/
http://enl.usc.edu/~om_p/net2/expt-06162007-4/

Delivery ratio for all the experiments seems similar.

Pkt delivery cost in increasing order: expt3, expt4, expt1, expt2

(very small difference between expt4 and expt1)

Number of retransmissions/expttime: 

expt4: 1071/323 = 3.31
expt3: 1556/494 = 3.14
expt2: 1646/381 = 4.32
expt1: 1080/326 = 3.31

parent changes/time:

expt4: 282/323 = 0.87
expt3: 363/494 = 0.73
expt2: 574/381 = 1.51
expt1: 206/326 = 0.63

In expt2, there are unusually high number of parent changes.

Log files:
http://enl.usc.edu/~om_p/net2/expt-06.tar.gz

- om_p


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