TECHNOLOGY USED.

EVDO(Evolution Data Optimized or Evolution Data Only) is a standard technology used for high speed wireless internet broadband services. It is also known as CDMA2000. It is a 3G wireless standard. EVDO was developed by Qualcomm to overcome the problem of lack of bandwidth. In EVDO the data to be sent is broken down into smaller packets. Each packet is transmitted separately. This allows the same bandwidth to be used by different users at different time intervals. EVDO uses the same broadcast frequencies of existing CDMA networks thus proving to be advantageous. EVDO offers speeds of upto 3.1 Mbit/s for wireless internet connection.

EDGE(Enhanced Data GSM Environment) is an improvement on the 2G GSM technology.EDGE offers an increase in data speed by doing an improvisation in the coding.EDGE uses higher order phase shift keying in addition to GMSK(Gaussian Minimum Shift Keying). The data transfer rate is three times more than that of normal GSM technology thus making it much better than GSM. EDGE has replaced other wireless technology like GPRS as it offers greater speed and can handle much more traffic than GPRS.