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  • 1. Han, Guangjie
    et al.
    Shen, Wen
    Duong, Quang Trung
    Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
    Guizani, Mohsen
    Hara, Takahiro
    A proposed security scheme against denial of service attacks in cluster-based wireless sensor networks2014In: Security and Communication Networks, ISSN 1939-0114, E-ISSN 1939-0122, Vol. 7, no 12, p. 2542-2554Article in journal (Refereed)
    Abstract [en]

    Traditional security schemes developed for sensor networks are not suitable for cluster-based wireless sensor networks (WSNs) because of their susceptibility to Denial of Service (DoS) attacks. In this paper, we provide a security scheme against DoS attacks (SSAD) in cluster-based WSNs. The scheme establishes trust management with energy character, which leads nodes to elect trusted cluster heads. Furthermore, a new type of vice cluster head node is proposed to detect betrayed cluster heads. Theoretical analyses and simulation results show that SSAD can prevent and detect malicious nodes with high probability of success

  • 2. Marias, Giannis
    et al.
    Barros, Joao
    Fiedler, Markus
    Blekinge Institute of Technology, School of Computing.
    Fischer, Andreas
    Hauff, Harald
    Herkenhoener, Ralph
    Grillo, Antonio
    Lentini, Alessandro
    Lima, Luisa
    Lorentzen, Charlott
    Security and privacy issues for the network of the future2012In: Security and Communication Networks, ISSN 1939-0114, E-ISSN 1939-0122, Vol. 5, no 9, p. 987-1005Article, review/survey (Refereed)
    Abstract [en]

    The vision towards the Network of the Future cannot be separated from the fact that today's networks, and networking services are subject to sophisticated and very effective attacks. When these attacks first appeared, spoofing and distributed denial-of-service attacks were treated as apocalypse for networking. Now, they are considered moderate damage, whereas more sophisticated and inconspicuous attacks, such as botnets activities, might have greater and far reaching impact. As the Internet is expanding to mobile phones and smart dust and as its social coverage is liberalized towards the realization of ubiquitous computing (with communication), the concerns on security and privacy have become deeper and the problems more challenging than ever. Re-designing the Internet as the Network of the Future is self-motivating for researchers, and security and privacy cannot be provided again as separate, external, add-on, solutions. In this paper, we discuss the security and privacy challenges of the Network of the Future and try to delimit the solutions space on the basis of emerging techniques. We also review methods that help the quantification of security and privacy in an effort to provide a more systematic and quantitative treatment of the area in the future.

  • 3.
    Sibomana, Louis
    et al.
    Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
    Tran, Hung
    Tran, Quang Anh
    Impact of secondary user communication on security communication of primary user2015In: Security and Communication Networks, ISSN 1939-0114, E-ISSN 1939-0122, Vol. 8, no 18, p. 4177-4190Article in journal (Refereed)
    Abstract [en]

    Cognitive radio network concept has been considered as a promising solution to improve the spectrum utilization. However, it may be vulnerable to security problems as the primary user (PU) and secondary user (SU) access the same resource. In this paper, we consider a system model where an eavesdropper (EAV) illegally listens to the PU communication in the presence of a SU transmitter (SU-Tx) communicating with a SU receiver (SU-Rx). The SU-Tx transmit power is subject to the peak transmit power constraint of the SU and outage probability constraint of the PU. Given this context, the effect of the interference from the SU-Tx to the EAV on the primary system security is investigated. In particular, analytical expressions of the probability of existence of non-zero secrecy capacity and secrecy outage probability of the PU are derived. Moreover, the performance analysis of the secondary network is examined where closed-form expressions of the symbol error probability and achievable rate are presented. Numerical examples are provided to evaluate the impact of the primary system parameters and channel conditions among users on the system performance of secondary and primary networks. Interestingly, our results reveal a fact that the security of the primary network strongly depends on the channel condition of the SU-Tx to the EAV link and the transmit power policy of the SU-Tx. Copyright (C) 2015 John Wiley & Sons, Ltd.

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