TY - GEN
T1 - A new outer bound for the gaussian interference channel with confidential messages
AU - He, Xiang
AU - Yener, Aylin
PY - 2009/10/12
Y1 - 2009/10/12
N2 - In this work, we derive new outer bounds for the two-user interference channel with confidential messages. An upper bound is found for the sum rate. When the interfering link of the first user is greater than 1, a new upper bound on 2R1 + R2 is obtained by studying a special form of the three-user interference channel. The bounds are then compared with known bounds for the symmetric interference channel under strong interference regime. In particular, examples are presented to showcase for channel parameters where positive secrecy rates are known to be achievable, the new bounds improve upon the known outer bounds on the secrecy capacity region. It is shown that, in some cases, the 2R1 + R2 bound also improves the bound on the sum rate.
AB - In this work, we derive new outer bounds for the two-user interference channel with confidential messages. An upper bound is found for the sum rate. When the interfering link of the first user is greater than 1, a new upper bound on 2R1 + R2 is obtained by studying a special form of the three-user interference channel. The bounds are then compared with known bounds for the symmetric interference channel under strong interference regime. In particular, examples are presented to showcase for channel parameters where positive secrecy rates are known to be achievable, the new bounds improve upon the known outer bounds on the secrecy capacity region. It is shown that, in some cases, the 2R1 + R2 bound also improves the bound on the sum rate.
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U2 - 10.1109/CISS.2009.5054738
DO - 10.1109/CISS.2009.5054738
M3 - Conference contribution
AN - SCOPUS:70349665189
SN - 9781424427345
T3 - Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
SP - 318
EP - 323
BT - Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
T2 - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
Y2 - 18 March 2009 through 20 March 2009
ER -