TY - GEN
T1 - On secure communication over multiple access wiretap channels under channel uncertainty
AU - Schaefer, Rafael F.
AU - Poor, H. Vincent
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/23
Y1 - 2014/12/23
N2 - The problem of secure communication over a multiple access wiretap channel (MAWC) is studied. Here, two transmitters send confidential messages to a legitimate receiver while keeping a non-legitimate eavesdropper ignorant of them. In this paper, this communication scenario is studied for compound channels, for which it is only known to the users that the actual channel realization is fixed and belongs to a known set of possible channels. The criterion of strong secrecy is analyzed and its impact on the decoding performance of the eavesdropper is specified. It is shown that the average decoding error at the eavesdropper approaches one exponentially fast regardless of the applied decoding strategy. Furthermore, an achievable strong secrecy rate region is presented and a multi-letter outer bound is derived. Both together establish a multi-letter description of the strong secrecy capacity region.
AB - The problem of secure communication over a multiple access wiretap channel (MAWC) is studied. Here, two transmitters send confidential messages to a legitimate receiver while keeping a non-legitimate eavesdropper ignorant of them. In this paper, this communication scenario is studied for compound channels, for which it is only known to the users that the actual channel realization is fixed and belongs to a known set of possible channels. The criterion of strong secrecy is analyzed and its impact on the decoding performance of the eavesdropper is specified. It is shown that the average decoding error at the eavesdropper approaches one exponentially fast regardless of the applied decoding strategy. Furthermore, an achievable strong secrecy rate region is presented and a multi-letter outer bound is derived. Both together establish a multi-letter description of the strong secrecy capacity region.
UR - http://www.scopus.com/inward/record.url?scp=84921471912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921471912&partnerID=8YFLogxK
U2 - 10.1109/CNS.2014.6997474
DO - 10.1109/CNS.2014.6997474
M3 - Conference contribution
AN - SCOPUS:84921471912
T3 - 2014 IEEE Conference on Communications and Network Security, CNS 2014
SP - 109
EP - 114
BT - 2014 IEEE Conference on Communications and Network Security, CNS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE Conference on Communications and Network Security, CNS 2014
Y2 - 29 October 2014 through 31 October 2014
ER -