Wireless Master

There has been a long line of certain technological developments that have led to the EDGE technology that is changing the way the world looks at mobile Internet technology today. EDGE is an enhancement of the existing GPRS technology which has higher rates of data transmission and also a bigger capacity in terms of system. Since the bit rates in EDGE are significantly higher, leading to a data usage which is three times that of standard GPRS users, therefore on certain parts in the network, there is an extra pressure in the GPRS networks.

There are certain technical improvements that have been brought about due to the development of EDGE and these are the following. Firstly, there has been a reduction in latency. Due to evolution there has been a significant reduction in latency and also delay. This is because Transmission Time Interval has been cut down and there have been certain enhancements in the protocol. The Transmission Time Interval or the TTI has been brought from 20 ms to 10 ms. This has been one of the first improvements including a reduction in perceived delay as well.

There is an increased bit-rate and more efficient service as well. This is one of the most prominent and welcomed improvements that EDGE has brought about in the world of mobile internet. To increase the peak bit rates, dual carriers have been introduced in the downlink. Thus the carrier bandwidth is above 200 kHz. Also, there are five time slots on each carrier and this means that bit rates go up to 600 kilobytes per second. Also, the presence of the dual carriers implies that whatever the available bandwidth is, that doubled. So now available bandwidth is doubled to almost 400 kHz.

There are also dual antenna symbols which make sure that the interference is well dealt with. It means that all the interference in the data transmission is cancelled out. This is due to the fact that signals are combined from the two antennas. And since there are dual antennas, it also means that the service and the network coverage is much better, even very weak signals can be captured and this is because now there are two antennas so the reception is made much more stronger. Now there is less signal power which is needed to give service. Now around 50 per cent less of signal power is needed. There are features like higher bit rates, turbo codes and also interference cancellation. Spectrum efficiency is also enhanced at the same time too.

Thus there has been a lot of state of the art technology that was involved in the development of EDGE as a technology. There have been many technical enhancements that have gone into the making of EDGE so that certain earlier shortcomings were improved upon and the quality of performance as well as service is improved.