Adding common randomness at transmitters removes the GDoF penalty due to secrecy constraints in three symmetric Gaussian network settings, with the minimal required randomness characterized.
The Gaussian multiple access wire-tap channel,
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Adding Common Randomness Can Remove the Secrecy Constraints in Communication Networks
Adding common randomness at transmitters removes the GDoF penalty due to secrecy constraints in three symmetric Gaussian network settings, with the minimal required randomness characterized.