How about Double Capacity with lower Power ?

[tukangoptim]

As far as i know between capacity and power it is a trade-off.
But this Indonesian researcher (http://www.jaist.ac.jp/profiles/info...profile_id=534) said he can double capacity and reducing power at the same time.

He proposed a new large spreading code set with a uniform low cross-correlation to replace our current current pseudo-orthogonal in OFDM system.
Attached pdf have some images showing power ratio reduced and Eb/No improved

and 1 more, this man also proposed block transmission without guard interval.

what do you think guys ? isn't it something ?
i can not imagine what our future telecommunication system would be..