Achievable Secure Degrees of Freedom of K -User MISO Broadcast Channel with Imperfect CSIT

Ye Fan; Xuewen Liao; Zhenzhen Gao; Victor C.M. Leung

doi:10.1109/LWC.2019.2900310

Achievable Secure Degrees of Freedom of K -User MISO Broadcast Channel with Imperfect CSIT

Ye Fan, Xuewen Liao, Zhenzhen Gao, Victor C.M. Leung

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this letter, we derive the achievable secure degrees of freedom (SDoF) of K -user multiple-input single-output broadcast channel with imperfect channel state information (CSI) at the transmitter. With the help of an N_j -antenna external jammer, we propose a jamming rate splitting (J-RS) scheme to ensure the security of two wiretap models: 1) broadcast channel with confidential messages and 2) broadcast channel with an N_e -antenna external eavesdropper, where each legal node has no CSI of wiretap channels. Our converse is based on the degrees of freedom (DoF) of the network with secrecy constraints, and the achievability is based on J-RS. By numerical analysis, it indicates that the proposed scheme can achieve more SDoF than the traditional rate splitting scheme, zero forcing scheme, and jamming scheme, which can reach to the DoF of the network.

Original language	English
Article number	8645654
Pages (from-to)	933-936
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	8
Issue number	3
DOIs	https://doi.org/10.1109/LWC.2019.2900310
State	Published - Jun 2019
Externally published	Yes

Keywords

achievable secure degrees of freedom
imperfect CSIT
jamming
Physical layer security
rate splitting

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10.1109/LWC.2019.2900310

Cite this

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title = "Achievable Secure Degrees of Freedom of K -User MISO Broadcast Channel with Imperfect CSIT",

abstract = "In this letter, we derive the achievable secure degrees of freedom (SDoF) of K -user multiple-input single-output broadcast channel with imperfect channel state information (CSI) at the transmitter. With the help of an Nj -antenna external jammer, we propose a jamming rate splitting (J-RS) scheme to ensure the security of two wiretap models: 1) broadcast channel with confidential messages and 2) broadcast channel with an Ne -antenna external eavesdropper, where each legal node has no CSI of wiretap channels. Our converse is based on the degrees of freedom (DoF) of the network with secrecy constraints, and the achievability is based on J-RS. By numerical analysis, it indicates that the proposed scheme can achieve more SDoF than the traditional rate splitting scheme, zero forcing scheme, and jamming scheme, which can reach to the DoF of the network.",

keywords = "achievable secure degrees of freedom, imperfect CSIT, jamming, Physical layer security, rate splitting",

author = "Ye Fan and Xuewen Liao and Zhenzhen Gao and Leung, {Victor C.M.}",

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AU - Fan, Ye

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AU - Gao, Zhenzhen

AU - Leung, Victor C.M.

PY - 2019/6

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N2 - In this letter, we derive the achievable secure degrees of freedom (SDoF) of K -user multiple-input single-output broadcast channel with imperfect channel state information (CSI) at the transmitter. With the help of an Nj -antenna external jammer, we propose a jamming rate splitting (J-RS) scheme to ensure the security of two wiretap models: 1) broadcast channel with confidential messages and 2) broadcast channel with an Ne -antenna external eavesdropper, where each legal node has no CSI of wiretap channels. Our converse is based on the degrees of freedom (DoF) of the network with secrecy constraints, and the achievability is based on J-RS. By numerical analysis, it indicates that the proposed scheme can achieve more SDoF than the traditional rate splitting scheme, zero forcing scheme, and jamming scheme, which can reach to the DoF of the network.

AB - In this letter, we derive the achievable secure degrees of freedom (SDoF) of K -user multiple-input single-output broadcast channel with imperfect channel state information (CSI) at the transmitter. With the help of an Nj -antenna external jammer, we propose a jamming rate splitting (J-RS) scheme to ensure the security of two wiretap models: 1) broadcast channel with confidential messages and 2) broadcast channel with an Ne -antenna external eavesdropper, where each legal node has no CSI of wiretap channels. Our converse is based on the degrees of freedom (DoF) of the network with secrecy constraints, and the achievability is based on J-RS. By numerical analysis, it indicates that the proposed scheme can achieve more SDoF than the traditional rate splitting scheme, zero forcing scheme, and jamming scheme, which can reach to the DoF of the network.

KW - achievable secure degrees of freedom

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Achievable Secure Degrees of Freedom of K -User MISO Broadcast Channel with Imperfect CSIT

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Keywords

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