The impact of 4G is obvious on contemporary wireless broadband services. Many researchers think that the 4G system would be nothing but a modified version of WiMAX due to the similarities in the architecture to a large extent, and because mobile WiMAX is able to handle wide range mobility. That is not true, however; in the previous sections we have seen that there are a lot of differences between a WiMAX system and a 4G system. Regardless, the impact of 4G is quite encouraging for all the mobile research community. Not only will the 3G GSM core network be evolved, but it would also be a tremendous system with a lot of advanced features for the future and capable of successfully handling the increased need.
The biggest impact will be on the business community, which is spending a huge amount for the 4G research in the hopes of receiving a good return. There is no doubt that 4G can generate a huge amount of revenue, but the timeline and other socio-political issues like spectrum distribution and health effects are making things complex. 4G would change the communication scenario to a large extent. Broadband services in the wireless mode would be appreciated by a large number of customers. Video transfer through wireless IP would be revolutionized.
Another interesting scenario for the 4G systems would be in the mobile computing arena. The 4G handsets would be nothing but some kind of advanced palmtops with broadband connection, so we can imagine what is going to happen and what kind of service can be expected. Business will go really mobile. That means that the true m-commerce would come to the market and true ubiquitous computing could be realized. Of course, the overall effects of 4G are now just predictions whose realities will only be witnessed in the future
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