Rajala,
Perhaps you would take some time and understand what a near far problem is. there is NO signalling involved. It is a well known system limitation of CDMA. It is also present in wideband CDMA. the problem is that when you are moving, you must estimate the power contol from recived signal strength. Moving around and mutipath fading cause this estimate to be slightly innaccurate. If how ever you stay fixed, you estiamte is very good. So your power control is very good. If you have your power control estimate veyr good, then your power request to the basestation is exactly your theorectical limit and thus you use the minimum amount of power needed to complete your link. This power control estimate is about 3dB, or a factor of two.
GSM has no mechanism like this, as they must transmit full power all the time intot he chanel and when they use a time slot, they consume it fully. they have no way to back off the channel at all, thus have no savings for a fixed terminal over a mobile. the only saving they can attain is that when they are fixed, they can hang a large fixed antenna out the window and gain more cell radius, but in a fixed, dense populated area, this defeats the cell density argument. Since GSM has no real fixed frequency reuse advantage (i.e. they cannot do microcells well) then this is counterproductive to producing a large dense WLL community for them.
I am still confused with your argument. Perhaps you could sit down and write out a clear technical explanation for us all one more time?
best regards,
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