LTE is radio. and WTF is decentralized radio? I don't think you can run a transmitter on the blockchain.
Decentralised radio is essentially ham radio. Individual units talking directly to each other, without relying on a single point of failure (the cell company). As others have said above, ham radio is a godsend in some situations. If you use the right bands, you can talk halfway around the world while running off batteries and using a wire thrown over a tree for an antenna.
And then what when everyone talks. Isn't it already regulated for this same reasoning? Seems to me a combination of open protocols and mesh networking would be better than government restricted ham.