Performance evaluation of the physical layer security using artificial noise and relay station

Junichi Kabeya, Osamu Takyu, Tomoaki Ohtsuki, Fumihito Sasamori, Shiro Handa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In the physical layer security (PLS), the beam forming with multiple antennas enhances the received signal power at the legitimate user but suppresses it at the other users. The other users hardly demodulate the information without the bit error. However, if the channel state between the legitimate user and the other one is highly correlated, it is possible for the other users to demodulate the information signal. This paper proposes the novel secure communication system with utilizing the artificial noise and the relay station. When the legitimate user emits the artificial noise, the relay station receives the information bearing signal and the artificial noise. The other users cannot demodulate the information due to the interference of artificial noise. After the relay forwards the combined signal between the information bearing signal and the artificial noise to the legitimate user, the artificial noise is removed from the forwarded signal by the legitimate user. As a result, the legitimate user can demodulate the information. Therefore, the secure wireless communication can be constructed. This paper evaluates the secure capacity for the various location of eavesdropper and clarifies the validity of proposed system.

本文言語English
ホスト出版物のタイトル2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ページ834-839
ページ数6
ISBN(電子版)9789881476807
DOI
出版ステータスPublished - 2016 2 19
イベント2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015 - Hong Kong, Hong Kong
継続期間: 2015 12 162015 12 19

Other

Other2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015
国/地域Hong Kong
CityHong Kong
Period15/12/1615/12/19

ASJC Scopus subject areas

  • 人工知能
  • モデリングとシミュレーション
  • 信号処理

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