Saturday, August 30, 2008

A New beginning coming to an end

Searching for information in online database, goggling through the web, learning how to use network simulator, writing and hours of simulation.

Sunday, December 09, 2007

I Like to Cite

I found a website which offers a free online service to keep track your academic papers. One unique features it allows to paste the url of the document and it will automatically extract all the important information such as authors and title for your safe reference. In addition, it allows to search academic papers based on tags which have been labeled by other users. The website can be found here ->

Monday, December 03, 2007

New simulatior

I have changed to a new simulator which is supposed to be easier and user friendly. The end.

Saturday, May 19, 2007

Stuck again

I'm stuck in programming how transmit a packet which has been pick out by the scheduler. At that moment, the mobile device is already disconected from the base station. What shall I do with the packet which has no destination ( the mobile device is connecting to other base station). According to FMIPv6, the packet would be reroute to new base station. For simplicity, I just drop the packets or placed in a queue until I figure out on how to reroute the packet to the new base station.

Wednesday, January 31, 2007

Spot the Difference

1. Weighted Round Robin

2. Drop tail queue

Both of them have the same:-
  • Buffer size
  • Output link bandwidth
However, the implementation still have some flaws. Still in progress...

Sunday, January 28, 2007


The above graph shows the throughput at CBR receivers. A total of six traffic generators and and six receiver was used for the simulation. Three out of six application managed to received with the average of 55kbps which has been buffered in queue that has higher weight. The other three receivers did not receive any packets since most of the packets are drop. The packets are drop at the queue which has lower weight. In addition, there is a bottleneck link between the transmitter and the receiver which cause the packets to queued up in the buffer before it is schedule to transmit. The graph was plotted using Xgraph 12.1.

Tuesday, January 23, 2007

Six plus six

A MIRAI-SF Animator showing a simulation scenario which consists of six packet generators and six packet receiver.