Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security

Seongah Jeong; Keonkook Lee; Joonhyuk Kang; Youngseok Baek; Bontae Koo

doi:10.1109/CCNC.2012.6181182

Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security

Seongah Jeong
, Keonkook Lee
, Joonhyuk Kang
, Youngseok Baek
, Bontae Koo

School of Advanced Fusion Studies

Korea Advanced Institute of Science and Technology
Electronics and Telecommunications Research Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

In spectrum leasing, primary users (PUs) lease the part of their spectral resources to secondary users (SUs) in exchange for appropriate remuneration. In this paper, we consider spectrum leasing via cooperation for physical-layer security that the secondary cooperation exists for improving the primary secrecy rate while maintaining its quality of service (QoS). Unlike the previous researches with the perfect channel state information (CSI) at transmitter (CSIT) assumption, we study when no information regarding the eavesdropper is available at the transmitter. This imperfect CSIT makes the SU's transmission strategy limited. To find the optimal transmission technique for the SU, we formulate a problem appropriate for the imperfect CSIT case. By using the proposed problem, we design the optimal transmit beamforming for the SU. Also, we analyze the ergodic rate of the secondary link at high signal-to-noise ratio (SNR) when the secondary cooperation focuses only on maximizing the primary secrecy rate for the viable choice of the secondary QoS level. The numerical result shows that the primary secrecy rate by the proposed transmit beamforming is comparable to that based on the perfect CSIT.

Original language	English
Title of host publication	2012 IEEE Consumer Communications and Networking Conference, CCNC'2012
Publisher	IEEE Computer Society
Pages	874-878
Number of pages	5
ISBN (Print)	9781457720710
DOIs	https://doi.org/10.1109/CCNC.2012.6181182
State	Published - 2012
Event	2012 IEEE Consumer Communications and Networking Conference, CCNC 2012 - Las Vegas, NV, United States Duration: 14 Jan 2012 → 17 Jan 2012

Publication series

Name	2012 IEEE Consumer Communications and Networking Conference, CCNC'2012

Conference

Conference	2012 IEEE Consumer Communications and Networking Conference, CCNC 2012
Country/Territory	United States
City	Las Vegas, NV
Period	14/01/12 → 17/01/12

Keywords

Physical security
imperfect channel state information
interference channel
spectrum leasing

Access to Document

10.1109/CCNC.2012.6181182

Cite this

Jeong, S., Lee, K., Kang, J., Baek, Y., & Koo, B. (2012). Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security. In 2012 IEEE Consumer Communications and Networking Conference, CCNC'2012 (pp. 874-878). Article 6181182 (2012 IEEE Consumer Communications and Networking Conference, CCNC'2012). IEEE Computer Society. https://doi.org/10.1109/CCNC.2012.6181182

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title = "Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security",

abstract = "In spectrum leasing, primary users (PUs) lease the part of their spectral resources to secondary users (SUs) in exchange for appropriate remuneration. In this paper, we consider spectrum leasing via cooperation for physical-layer security that the secondary cooperation exists for improving the primary secrecy rate while maintaining its quality of service (QoS). Unlike the previous researches with the perfect channel state information (CSI) at transmitter (CSIT) assumption, we study when no information regarding the eavesdropper is available at the transmitter. This imperfect CSIT makes the SU's transmission strategy limited. To find the optimal transmission technique for the SU, we formulate a problem appropriate for the imperfect CSIT case. By using the proposed problem, we design the optimal transmit beamforming for the SU. Also, we analyze the ergodic rate of the secondary link at high signal-to-noise ratio (SNR) when the secondary cooperation focuses only on maximizing the primary secrecy rate for the viable choice of the secondary QoS level. The numerical result shows that the primary secrecy rate by the proposed transmit beamforming is comparable to that based on the perfect CSIT.",

keywords = "Physical security, imperfect channel state information, interference channel, spectrum leasing",

author = "Seongah Jeong and Keonkook Lee and Joonhyuk Kang and Youngseok Baek and Bontae Koo",

year = "2012",

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language = "English",

isbn = "9781457720710",

series = "2012 IEEE Consumer Communications and Networking Conference, CCNC'2012",

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note = "2012 IEEE Consumer Communications and Networking Conference, CCNC 2012 ; Conference date: 14-01-2012 Through 17-01-2012",

}

Jeong, S, Lee, K, Kang, J, Baek, Y & Koo, B 2012, Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security. in 2012 IEEE Consumer Communications and Networking Conference, CCNC'2012., 6181182, 2012 IEEE Consumer Communications and Networking Conference, CCNC'2012, IEEE Computer Society, pp. 874-878, 2012 IEEE Consumer Communications and Networking Conference, CCNC 2012, Las Vegas, NV, United States, 14/01/12. https://doi.org/10.1109/CCNC.2012.6181182

Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security. / Jeong, Seongah; Lee, Keonkook; Kang, Joonhyuk et al.
2012 IEEE Consumer Communications and Networking Conference, CCNC'2012. IEEE Computer Society, 2012. p. 874-878 6181182 (2012 IEEE Consumer Communications and Networking Conference, CCNC'2012).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security

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AU - Lee, Keonkook

AU - Kang, Joonhyuk

AU - Baek, Youngseok

AU - Koo, Bontae

PY - 2012

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N2 - In spectrum leasing, primary users (PUs) lease the part of their spectral resources to secondary users (SUs) in exchange for appropriate remuneration. In this paper, we consider spectrum leasing via cooperation for physical-layer security that the secondary cooperation exists for improving the primary secrecy rate while maintaining its quality of service (QoS). Unlike the previous researches with the perfect channel state information (CSI) at transmitter (CSIT) assumption, we study when no information regarding the eavesdropper is available at the transmitter. This imperfect CSIT makes the SU's transmission strategy limited. To find the optimal transmission technique for the SU, we formulate a problem appropriate for the imperfect CSIT case. By using the proposed problem, we design the optimal transmit beamforming for the SU. Also, we analyze the ergodic rate of the secondary link at high signal-to-noise ratio (SNR) when the secondary cooperation focuses only on maximizing the primary secrecy rate for the viable choice of the secondary QoS level. The numerical result shows that the primary secrecy rate by the proposed transmit beamforming is comparable to that based on the perfect CSIT.

AB - In spectrum leasing, primary users (PUs) lease the part of their spectral resources to secondary users (SUs) in exchange for appropriate remuneration. In this paper, we consider spectrum leasing via cooperation for physical-layer security that the secondary cooperation exists for improving the primary secrecy rate while maintaining its quality of service (QoS). Unlike the previous researches with the perfect channel state information (CSI) at transmitter (CSIT) assumption, we study when no information regarding the eavesdropper is available at the transmitter. This imperfect CSIT makes the SU's transmission strategy limited. To find the optimal transmission technique for the SU, we formulate a problem appropriate for the imperfect CSIT case. By using the proposed problem, we design the optimal transmit beamforming for the SU. Also, we analyze the ergodic rate of the secondary link at high signal-to-noise ratio (SNR) when the secondary cooperation focuses only on maximizing the primary secrecy rate for the viable choice of the secondary QoS level. The numerical result shows that the primary secrecy rate by the proposed transmit beamforming is comparable to that based on the perfect CSIT.

KW - Physical security

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Y2 - 14 January 2012 through 17 January 2012

ER -

Transmit beamforming with imperfect CSIT in spectrum leasing for physical-layer security

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Keywords

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