Journal of shanghai Jiaotong University (Science) ›› 2011, Vol. 16 ›› Issue (6): 641-647.doi: 10.1007/s12204-011-1204-6

• Articles •     Next Articles

Reputation-Based Collaborative Spectrum Sensing Scheme in Cognitive Radio Networks

Reputation-Based Collaborative Spectrum Sensing Scheme in Cognitive Radio Networks

ZHAO Shi-kang (赵士康),  HE Di (何  迪),  LI Wen-hua  (李文化),  ZHU Fu-sheng (朱伏生)   

  1. (1. Department of Electronic Engineering, Shanghai
    Jiaotong University, Shanghai 200240, China;
    2. ARCON Corporation, Waltham, MA 02451, USA;
    3. Zhongxing Telecommunication Equipment Corporation, Shanghai
    201203, China)
  2. (1. Department of Electronic Engineering, Shanghai
    Jiaotong University, Shanghai 200240, China;
    2. ARCON Corporation, Waltham, MA 02451, USA;
    3. Zhongxing Telecommunication Equipment Corporation, Shanghai
    201203, China)
  • Received:2011-01-24 Online:2011-12-30 Published:2012-01-12
  • Contact: ZHAO Shi-kang (赵士康) E-mail:zhaoshikang512@163.com

Abstract:  Collaborative spectrum sensing is
proposed to improve the detection performance in cognitive radio
(CR) networks. However, most of the current collaborative sensing
schemes are vulnerable to the interference of the malicious
secondary users (SUs). In this paper we propose a reputation-based
collaborative spectrum sensing scheme to improve the security of
cooperative sensing by mitigating the impacts of misbehaviors. The
fusion center calculates the reputation rating of each SU according
to their history reports to weight their sensing results in the
proposed scheme. We analyze and evaluate the performance of the
proposed scheme and its advantages over previous schemes in
expansibility and integrity. Simulation results show that the
proposed scheme can minimize the harmful influence from malicious
SUs.

Key words:

cognitive radio (CR)| collaborative spectrum
sensing| reputation-based scheme| security

摘要:  Collaborative spectrum sensing is
proposed to improve the detection performance in cognitive radio
(CR) networks. However, most of the current collaborative sensing
schemes are vulnerable to the interference of the malicious
secondary users (SUs). In this paper we propose a reputation-based
collaborative spectrum sensing scheme to improve the security of
cooperative sensing by mitigating the impacts of misbehaviors. The
fusion center calculates the reputation rating of each SU according
to their history reports to weight their sensing results in the
proposed scheme. We analyze and evaluate the performance of the
proposed scheme and its advantages over previous schemes in
expansibility and integrity. Simulation results show that the
proposed scheme can minimize the harmful influence from malicious
SUs.

关键词:

cognitive radio (CR)| collaborative spectrum
sensing| reputation-based scheme| security

CLC Number: