Quality of Service in Heterogeneous Networks. 6th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2009 and 3rd International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications, AAA-IDEA 2009, Las Palmas, Gran Canaria, November 23-25, 2009 Proceedings

Research Article

Malicious or Selfish? Analysis of Carrier Sense Misbehavior in IEEE 802.11 WLAN

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  • @INPROCEEDINGS{10.1007/978-3-642-10625-5_22,
        author={Kyung-Joon Park and Jihyuk Choi and Kyungtae Kang and Yih-Chun Hu},
        title={Malicious or Selfish? Analysis of Carrier Sense Misbehavior in IEEE 802.11 WLAN},
        proceedings={Quality of Service in Heterogeneous Networks. 6th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2009 and 3rd International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications, AAA-IDEA 2009, Las Palmas, Gran Canaria, November 23-25, 2009 Proceedings},
        proceedings_a={QSHINE},
        year={2012},
        month={10},
        keywords={IEEE 802.11 MAC physical carrier sense wireless network security MAC-layer misbehavior},
        doi={10.1007/978-3-642-10625-5_22}
    }
    
  • Kyung-Joon Park
    Jihyuk Choi
    Kyungtae Kang
    Yih-Chun Hu
    Year: 2012
    Malicious or Selfish? Analysis of Carrier Sense Misbehavior in IEEE 802.11 WLAN
    QSHINE
    Springer
    DOI: 10.1007/978-3-642-10625-5_22
Kyung-Joon Park1,*, Jihyuk Choi1,*, Kyungtae Kang1,*, Yih-Chun Hu1,*
  • 1: University of Illinois at Urbana-Champaign
*Contact email: kjp@illinois.edu, jchoi43@illinois.edu, ktkang@illinois.edu, yihchun@illinois.edu

Abstract

The behavior of selfish users, which does not respect the backoff procedure of IEEE 802.11 WLAN, has been nicely studied in game-theoretic frameworks. However, in these studies, the effect of physical carrier sense has not been properly incorporated into the analysis. In this paper, we study the problem of how carrier sense misbehavior can affect network performance in addition to backoff misbehavior. Our analysis shows that a cheater can increase its throughput by ignoring the carrier sense mechanism while a well-behaved user significantly loses its throughput. Consequently, not only a malicious user, but also a selfish one is motivated to disregard the carrier sense mechanism, which will result in significant throughput degradation of well-behaved ones. Our analysis also shows that carrier sense misbehavior corresponds to the case of virtually increasing the channel access probability of the cheater in the backoff procedure. We provide our preliminary simulation results, which verify our analysis.