Hi Affan - Since you modified the how-to stuff to meet your needs,
it'll be difficult for any of us to provide definitive assistance
without seeing your code (I, personally, have very little free time
this week until I get a presentation finished). That said, if you do
succeed & come up with a set of notes on the process, I hope you
decide to edit them into a wiki (GNU Radio's or some other) to help
out others trying to do the same thing. - MLD