The general Gaussian multiple-access and two-way wiretap channels

Achievable rates and cooperative jamming

Ender Tekin, Aylin Yener

    Research output: Contribution to journalArticle

    565 Citations (Scopus)

    Abstract

    The general Gaussian multiple-access wiretap channel (GGMAC-WT) and the Gaussian two-way wiretap channel (GTW-WT) are considered. In the GGMAC-WT, multiple users communicate with an intended receiver in the presence of an eavesdropper who receives their signals through another GMAC. In the GTW-WT, two users communicate with each other over a common Gaussian channel, with an eavesdropper listening through a GMAC. A secrecy measure that is suitable for this multiterminal environment is defined, and achievable secrecy rate regions are found for both channels. For both cases, the power allocations maximizing the achievable secrecy sum rate are determined. It is seen that the optimum policy may prevent some terminals from transmission in order to preserve the secrecy of the system. Inspired by this construct, a new scheme cooperative jamming is proposed, where users who are prevented from transmitting according to the secrecy sum rate maximizing power allocation policy "jam"the eavesdropper, thereby helping the remaining users. This scheme is shown to increase the achievable secrecy sum rate. Overall, our results show that in multiple-access scenarios, users can help each other to collectively achieve positive secrecy rates. In other words, cooperation among users can be invaluable for achieving secrecy for the system.

    Original languageEnglish (US)
    Pages (from-to)2735-2751
    Number of pages17
    JournalIEEE Transactions on Information Theory
    Volume54
    Issue number6
    DOIs
    StatePublished - Jun 1 2008

    Fingerprint

    secrecy
    Jamming
    recipient
    scenario

    All Science Journal Classification (ASJC) codes

    • Information Systems
    • Computer Science Applications
    • Library and Information Sciences

    Cite this

    @article{2995a59dc3024e05859c77dff2d21a6b,
    title = "The general Gaussian multiple-access and two-way wiretap channels: Achievable rates and cooperative jamming",
    abstract = "The general Gaussian multiple-access wiretap channel (GGMAC-WT) and the Gaussian two-way wiretap channel (GTW-WT) are considered. In the GGMAC-WT, multiple users communicate with an intended receiver in the presence of an eavesdropper who receives their signals through another GMAC. In the GTW-WT, two users communicate with each other over a common Gaussian channel, with an eavesdropper listening through a GMAC. A secrecy measure that is suitable for this multiterminal environment is defined, and achievable secrecy rate regions are found for both channels. For both cases, the power allocations maximizing the achievable secrecy sum rate are determined. It is seen that the optimum policy may prevent some terminals from transmission in order to preserve the secrecy of the system. Inspired by this construct, a new scheme cooperative jamming is proposed, where users who are prevented from transmitting according to the secrecy sum rate maximizing power allocation policy {"}jam{"}the eavesdropper, thereby helping the remaining users. This scheme is shown to increase the achievable secrecy sum rate. Overall, our results show that in multiple-access scenarios, users can help each other to collectively achieve positive secrecy rates. In other words, cooperation among users can be invaluable for achieving secrecy for the system.",
    author = "Ender Tekin and Aylin Yener",
    year = "2008",
    month = "6",
    day = "1",
    doi = "10.1109/TIT.2008.921680",
    language = "English (US)",
    volume = "54",
    pages = "2735--2751",
    journal = "IEEE Transactions on Information Theory",
    issn = "0018-9448",
    publisher = "Institute of Electrical and Electronics Engineers Inc.",
    number = "6",

    }

    The general Gaussian multiple-access and two-way wiretap channels : Achievable rates and cooperative jamming. / Tekin, Ender; Yener, Aylin.

    In: IEEE Transactions on Information Theory, Vol. 54, No. 6, 01.06.2008, p. 2735-2751.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - The general Gaussian multiple-access and two-way wiretap channels

    T2 - Achievable rates and cooperative jamming

    AU - Tekin, Ender

    AU - Yener, Aylin

    PY - 2008/6/1

    Y1 - 2008/6/1

    N2 - The general Gaussian multiple-access wiretap channel (GGMAC-WT) and the Gaussian two-way wiretap channel (GTW-WT) are considered. In the GGMAC-WT, multiple users communicate with an intended receiver in the presence of an eavesdropper who receives their signals through another GMAC. In the GTW-WT, two users communicate with each other over a common Gaussian channel, with an eavesdropper listening through a GMAC. A secrecy measure that is suitable for this multiterminal environment is defined, and achievable secrecy rate regions are found for both channels. For both cases, the power allocations maximizing the achievable secrecy sum rate are determined. It is seen that the optimum policy may prevent some terminals from transmission in order to preserve the secrecy of the system. Inspired by this construct, a new scheme cooperative jamming is proposed, where users who are prevented from transmitting according to the secrecy sum rate maximizing power allocation policy "jam"the eavesdropper, thereby helping the remaining users. This scheme is shown to increase the achievable secrecy sum rate. Overall, our results show that in multiple-access scenarios, users can help each other to collectively achieve positive secrecy rates. In other words, cooperation among users can be invaluable for achieving secrecy for the system.

    AB - The general Gaussian multiple-access wiretap channel (GGMAC-WT) and the Gaussian two-way wiretap channel (GTW-WT) are considered. In the GGMAC-WT, multiple users communicate with an intended receiver in the presence of an eavesdropper who receives their signals through another GMAC. In the GTW-WT, two users communicate with each other over a common Gaussian channel, with an eavesdropper listening through a GMAC. A secrecy measure that is suitable for this multiterminal environment is defined, and achievable secrecy rate regions are found for both channels. For both cases, the power allocations maximizing the achievable secrecy sum rate are determined. It is seen that the optimum policy may prevent some terminals from transmission in order to preserve the secrecy of the system. Inspired by this construct, a new scheme cooperative jamming is proposed, where users who are prevented from transmitting according to the secrecy sum rate maximizing power allocation policy "jam"the eavesdropper, thereby helping the remaining users. This scheme is shown to increase the achievable secrecy sum rate. Overall, our results show that in multiple-access scenarios, users can help each other to collectively achieve positive secrecy rates. In other words, cooperation among users can be invaluable for achieving secrecy for the system.

    UR - http://www.scopus.com/inward/record.url?scp=45249101530&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=45249101530&partnerID=8YFLogxK

    U2 - 10.1109/TIT.2008.921680

    DO - 10.1109/TIT.2008.921680

    M3 - Article

    VL - 54

    SP - 2735

    EP - 2751

    JO - IEEE Transactions on Information Theory

    JF - IEEE Transactions on Information Theory

    SN - 0018-9448

    IS - 6

    ER -