Correction

The wifi network which my friend was using on the bus is not the true wifi. It turned out to be that the core netowrk was CDMA, and the access point was wifi. It works out like this: An antenna is mounted on the roof top, and a CDMA modem is connected to it. This provides the network connectivity and it is distributed using a wifi router. So simple. Isn't it ?

CDMA is a cellular network with a frequency reuse factor 1. It's limited data speed (144 Kbps)and soft capacity narrows down its use as an substiute to brodband internet access technology. Nevertheless, the reach of CDMA network vouches its use, and now many USB devices are available, for quite cheap, that can give you a good internet experience. I will talk about the CDMA in my next blog.

Thanks Carl for the prompt correction.