中国物理B ›› 2015, Vol. 24 ›› Issue (9): 90209-090209.doi: 10.1088/1674-1056/24/9/090209

• GENERAL • 上一篇    下一篇

Improving the secrecy rate by turning foes to allies: An auction scheme

马亚燕, 王保云   

  1. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2015-02-13 修回日期:2015-04-22 出版日期:2015-09-05 发布日期:2015-09-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61271232 and 61372126) and the University Postgraduate Research and Innovation Project in Jiangsu Province, China (Grant No. CXZZ12-0472).

Improving the secrecy rate by turning foes to allies: An auction scheme

Ma Ya-Yan (马亚燕), Wang Bao-Yun (王保云)   

  1. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2015-02-13 Revised:2015-04-22 Online:2015-09-05 Published:2015-09-05
  • Contact: Wang Bao-Yun E-mail:bywang@njupt.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61271232 and 61372126) and the University Postgraduate Research and Innovation Project in Jiangsu Province, China (Grant No. CXZZ12-0472).

摘要: Security against eavesdroppers is a critical issue in cognitive radio networks (CRNs). In this paper, a scenario consisting of one primary pair and multiple secondary pairs is considered. The secondary transmitters (STs) work in half-duplex mode and they are potential eavesdroppers on the primary transmission unless they are allowed to simultaneously transmit with the primary transmitter (PT). A modified second-price sealed-bid auction scheme is employed to model the interaction between the PT and STs. With the proposed auction scheme, the hostile relationship between the PT and STs is transformed into a cooperative relationship. An iterative algorithm based on the max-min criteria is proposed to find the optimal bidding power of the STs for an access chance in the presence of multiple eavesdroppers. Numerical results show that the proposed auction scheme not only improves the PT's security but also increases the access opportunities of the STs.

关键词: security, auction, cooperation, cognitive radio networks

Abstract: Security against eavesdroppers is a critical issue in cognitive radio networks (CRNs). In this paper, a scenario consisting of one primary pair and multiple secondary pairs is considered. The secondary transmitters (STs) work in half-duplex mode and they are potential eavesdroppers on the primary transmission unless they are allowed to simultaneously transmit with the primary transmitter (PT). A modified second-price sealed-bid auction scheme is employed to model the interaction between the PT and STs. With the proposed auction scheme, the hostile relationship between the PT and STs is transformed into a cooperative relationship. An iterative algorithm based on the max-min criteria is proposed to find the optimal bidding power of the STs for an access chance in the presence of multiple eavesdroppers. Numerical results show that the proposed auction scheme not only improves the PT's security but also increases the access opportunities of the STs.

Key words: security, auction, cooperation, cognitive radio networks

中图分类号:  (Decision theory and game theory)

  • 02.50.Le
03.67.Dd (Quantum cryptography and communication security)