Thursday, August 20, 2009

4G Network Thoughts

So, I will start off with some of the objectives of a fourth generation cellular network. It pretty much is going to accommodate the Quality of Service rate requirements set by MMS, VC, Mobile TV, HDTV content and DVB on an Anywhere, Anytime basis. This means that it pretty much will allow those technologies to work at their best at an location and an time of day.

Unlike other technologies like smart phones the 4G has standards, they are:
1. Spectral Efficiency: the information rate transmitted over a bandwidth and how efficiently that is used over whatever protocol. HTTP, FTP etc.
2. High network capacity
3. If a cell user is moving at high speeds relative to the cell tower they will receive 100 Mbit/s faster then the lousy 7.2 on 3g. Also if they user is still they will get 1 Gbit/s.
4. A smooth data rate (no packets dropped, etc) at 100Mbit/s from any two points in the world. a VC with QoS from anywhere.
5. Smooth handoff between heterogeneous networks, no delay when leaving a zone to access another carriers tower
6. Seamless connectivity
7. The high QoS for next generation MM Support (stated in the first paragraph)
8. Interoperability with existing wireless standards
9. An all IP, packet switched network

Some possible problems that I see:
Besides us not having the preparation for an Anywhere network would be Battery and RAM necessary to operate big downloads. With these abilities battery will be used in huge amounts. So, batteries need improvement unless we could get Tesla's free wireless electricity (somewhat implemented in the Palm Pre.) Second, even though people don't make more then 400 MB's on average. You won't actually get that speed because to be written to the storage it takes some time and on a cell phone the most RAM I have seen is 256 - 300 MB's of RAM. So, assume that you have 70% usable space you still have to write to RAM, to storage, add new data to the RAM. What I am trying to say the network won't be that hard to make it's the cell phone hardware that is the problem. Now, laptops on the other hand or more precisely, netbooks could use this technology really well. Especially for speedy cloud computing.

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