TY - GEN
T1 - MIMO Gaussian broadcast channels with common, private and confidential messages
AU - Goldfeld, Ziv
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/21
Y1 - 2016/10/21
N2 - The two-user multiple-input multiple-output (MIMO) Gaussian broadcast channel (BC) with common, private and confidential messages is considered. The transmitter sends a common message to both users, a confidential message to User 1 and a private (non-confidential) message to User 2. The secrecy-capacity region is characterized by showing that certain inner and outer bounds coincide and that the boundary points are achieved by Gaussian inputs. The proof relies on factorization of upper concave envelopes and a variant of dirty-paper coding (DPC). The entire region is exhausted by using DPC to cancel out the signal of the non-confidential message at Receiver 1, making DPC against the signal of the confidential message unnecessary. The secrecy-capacity results are visualized using a numerical example.
AB - The two-user multiple-input multiple-output (MIMO) Gaussian broadcast channel (BC) with common, private and confidential messages is considered. The transmitter sends a common message to both users, a confidential message to User 1 and a private (non-confidential) message to User 2. The secrecy-capacity region is characterized by showing that certain inner and outer bounds coincide and that the boundary points are achieved by Gaussian inputs. The proof relies on factorization of upper concave envelopes and a variant of dirty-paper coding (DPC). The entire region is exhausted by using DPC to cancel out the signal of the non-confidential message at Receiver 1, making DPC against the signal of the confidential message unnecessary. The secrecy-capacity results are visualized using a numerical example.
UR - http://www.scopus.com/inward/record.url?scp=84998723855&partnerID=8YFLogxK
U2 - 10.1109/ITW.2016.7606792
DO - 10.1109/ITW.2016.7606792
M3 - Conference contribution
AN - SCOPUS:84998723855
T3 - 2016 IEEE Information Theory Workshop, ITW 2016
SP - 41
EP - 45
BT - 2016 IEEE Information Theory Workshop, ITW 2016
PB - Institute of Electrical and Electronics Engineers
T2 - 2016 IEEE Information Theory Workshop, ITW 2016
Y2 - 11 September 2016 through 14 September 2016
ER -