A new outer bound for the gaussian interference channel with confidential messages

Xiang He, Aylin Yener

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    26 Scopus citations

    Abstract

    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.

    Original languageEnglish (US)
    Title of host publicationProceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
    Pages318-323
    Number of pages6
    DOIs
    StatePublished - Oct 12 2009
    Event43rd Annual Conference on Information Sciences and Systems, CISS 2009 - Baltimore, MD, United States
    Duration: Mar 18 2009Mar 20 2009

    Publication series

    NameProceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009

    Other

    Other43rd Annual Conference on Information Sciences and Systems, CISS 2009
    CountryUnited States
    CityBaltimore, MD
    Period3/18/093/20/09

    All Science Journal Classification (ASJC) codes

    • Computer Science Applications
    • Information Systems

    Cite this

    He, X., & Yener, A. (2009). A new outer bound for the gaussian interference channel with confidential messages. In Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009 (pp. 318-323). [5054738] (Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009). https://doi.org/10.1109/CISS.2009.5054738