Energy efficiency maximization for secure data transmission over DF relay networks

The security requirements of data transmission over wireless networks are energy-limited in many situations. In this paper, the secure energy efficiency (EE), is defined as the ratio of the secrecy rate to the total power, and is investigated in a systematic way considering a decode-and-forward (DF)...

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Veröffentlicht in:2015 IEEE International Conference on Communications (ICC) S. 2313 - 2317
Hauptverfasser: Dong Wang, Bo Bai, Wei Chen, Zhu Han
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.06.2015
Schlagworte:
Optimization
Physical layer
Programming
Relay networks (telecommunications)
Security
Wireless communication
ISSN:1550-3607
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Abstract The security requirements of data transmission over wireless networks are energy-limited in many situations. In this paper, the secure energy efficiency (EE), is defined as the ratio of the secrecy rate to the total power, and is investigated in a systematic way considering a decode-and-forward (DF) relay network with a potential eavesdropper. We maximize the secure EE subject to the individual power constraint and the minimum decoding rate constraint of the relay. To deal with the nonconvexity of the formulated problem, a fractional programming approach embedded with DC (difference of convex functions) programming is proposed to solve the problem by two-layer iterations. The key point of the proposed algorithm is to translate the primal problem into a series of convex subproblems, which can be solved by convex programming. It is verified by simulation that the proposed algorithm achieves much better secure EE than the conventional secrecy rate maximization yet with a minor performance loss measured by average secrecy rate or secrecy outage probability.
AbstractList The security requirements of data transmission over wireless networks are energy-limited in many situations. In this paper, the secure energy efficiency (EE), is defined as the ratio of the secrecy rate to the total power, and is investigated in a systematic way considering a decode-and-forward (DF) relay network with a potential eavesdropper. We maximize the secure EE subject to the individual power constraint and the minimum decoding rate constraint of the relay. To deal with the nonconvexity of the formulated problem, a fractional programming approach embedded with DC (difference of convex functions) programming is proposed to solve the problem by two-layer iterations. The key point of the proposed algorithm is to translate the primal problem into a series of convex subproblems, which can be solved by convex programming. It is verified by simulation that the proposed algorithm achieves much better secure EE than the conventional secrecy rate maximization yet with a minor performance loss measured by average secrecy rate or secrecy outage probability.
Author Wei Chen
Dong Wang
Bo Bai
Zhu Han
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  surname: Dong Wang
  fullname: Dong Wang
  email: d-w12@mails.tsinghua.edu.cn
  organization: Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
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  surname: Bo Bai
  fullname: Bo Bai
  email: eebobai@tsinghua.edu.cn
  organization: Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
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  surname: Wei Chen
  fullname: Wei Chen
  email: wchen@tsinghua.edu.cn
  organization: Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
– sequence: 4
  surname: Zhu Han
  fullname: Zhu Han
  email: zhan2@uh.edu
  organization: Dept. of Electr. & Comput. Eng., Univ. of Houston, Houston, TX, USA
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Snippet The security requirements of data transmission over wireless networks are energy-limited in many situations. In this paper, the secure energy efficiency (EE),...
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StartPage 2313
SubjectTerms Optimization
Physical layer
Programming
Relay networks (telecommunications)
Security
Wireless communication
Title Energy efficiency maximization for secure data transmission over DF relay networks
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