TY - GEN
T1 - Optimal covert communications using pulse-position modulation
AU - Bloch, Matthieu R.
AU - Guha, Saikat
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by NSF under grant TWC 1527387. SG acknowledges support from the DARPA QUIET seedling project under contract number HR0011-16-C-0111.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/8/9
Y1 - 2017/8/9
N2 - This paper shows the optimality of Pulse-Position Modulation (PPM) for covert communications over discrete-memoryless channels. Specifically, the concatenation of a random m-ary outer code of length O(m) and an inner code consisting of PPM of order m achieves the information-theoretic limits of covert communications. This suggests alternative code constructions for covert communications, in which the sparsity of the PPM symbols ensures covertness and an appropriate choice of the blocklength results in the square root law.
AB - This paper shows the optimality of Pulse-Position Modulation (PPM) for covert communications over discrete-memoryless channels. Specifically, the concatenation of a random m-ary outer code of length O(m) and an inner code consisting of PPM of order m achieves the information-theoretic limits of covert communications. This suggests alternative code constructions for covert communications, in which the sparsity of the PPM symbols ensures covertness and an appropriate choice of the blocklength results in the square root law.
UR - https://www.scopus.com/pages/publications/85034051954
UR - https://www.scopus.com/pages/publications/85034051954#tab=citedBy
U2 - 10.1109/ISIT.2017.8007045
DO - 10.1109/ISIT.2017.8007045
M3 - Conference contribution
AN - SCOPUS:85034051954
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2825
EP - 2829
BT - 2017 IEEE International Symposium on Information Theory, ISIT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Symposium on Information Theory, ISIT 2017
Y2 - 25 June 2017 through 30 June 2017
ER -