TY - GEN
T1 - An achievable rate region for discrete memoryless broadcast channels with confidential messages
AU - Cao, Yi
AU - Chen, Biao
PY - 2008
Y1 - 2008
N2 - In this paper, we consider non-degraded discrete memoryless broadcast channels where two private messages as well as a common message are transmitted at rate R1, R2 and R0 respectively. The common message is for both receivers to decode; the private message is only for its intended receiver of which the other receiver shall be kept as ignorant as possible. Measuring ignorance by equivocation, we propose an achievable rate region (R1, R2, R0, Re1_, R e2) for this channel where Re1 and Re2 are the equivocation rates for the two receivers respectively. This result generalizes Csiszar and Korner's capacity region for broadcast channels with single private message, Liu et al's result for broadcast channels with perfect secrecy, Gel'fand and Pinsker's achievable rate region for broadcast channels with common message, and Marton's achievable rate region for general broadcast channels.
AB - In this paper, we consider non-degraded discrete memoryless broadcast channels where two private messages as well as a common message are transmitted at rate R1, R2 and R0 respectively. The common message is for both receivers to decode; the private message is only for its intended receiver of which the other receiver shall be kept as ignorant as possible. Measuring ignorance by equivocation, we propose an achievable rate region (R1, R2, R0, Re1_, R e2) for this channel where Re1 and Re2 are the equivocation rates for the two receivers respectively. This result generalizes Csiszar and Korner's capacity region for broadcast channels with single private message, Liu et al's result for broadcast channels with perfect secrecy, Gel'fand and Pinsker's achievable rate region for broadcast channels with common message, and Marton's achievable rate region for general broadcast channels.
KW - Broadcast channel
KW - Confidential message
KW - Equivocation rate
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U2 - 10.1109/ISIT.2008.4595382
DO - 10.1109/ISIT.2008.4595382
M3 - Conference contribution
AN - SCOPUS:52349105268
SN - 9781424422579
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2207
EP - 2211
BT - Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
T2 - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Y2 - 6 July 2008 through 11 July 2008
ER -