A Note on the Secrecy Capacity of the Multiple-Antenna Wiretap Channel

abstract

• The secrecy capacity of the multiple-antenna wiretap channel under the average total power constraint was recently characterized, independently, by Khisti and Wornell and Oggier and Hassibi using a Sato-like argument and matrix analysis tools. This paper presents an alternative characterization of the secrecy capacity of the multiple-antenna wiretap channel under a more general matrix constraint on the channel input using a channel-enhancement argument. This characterization is by nature information-theoretic and is directly built on the intuition regarding to the optimal transmission strategy in this communication scenario. 2009 IEEE.

authors

• Liu, Tie

published proceedings

• IEEE TRANSACTIONS ON INFORMATION THEORY

author list (cited authors)

• Liu, T., & Shamai (Shitz), S.

citation count

• 409

complete list of authors

• Liu, Tie||Shamai (Shitz), Shlomo

publication date

• June 2009

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE TRANSACTIONS ON INFORMATION THEORY  Journal

keywords

• Channel Enhancement
• Multiple-antenna Communications
• Wiretap Channel

Digital Object Identifier (DOI)

• 10.1109/TIT.2009.2018322

start page

• 2547

end page

• 2553

volume

• 55

issue

• 6

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Ftit.2009.2018322