A Novel Misbehavior Detection for the Relay Network Using Channel Statistics
| Autor: | Chien-ChihHuang, 黃建智 |
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| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 In the relay network, trustworthy physical layer security is the key to its successful applications. Two typical issues of physical layer security are selfishness and garbling. In the literature, many schemes have been proposed to address these issues. In fact, a certain non-typical but severely harmful misbehavior can also thoroughly remove the cooperative diversity gain from the relay network. Here, we coin ”masquerade” to clearly indicate this kind of misbehavior. A masquerade relay is the malicious one who can always pretend to be the best and consequently deprive the others of the opportunities to cooperate. To the best of our knowledge, the masquerade misbehavior detection has not yet been investigated. Thus, in this paper, we propose a likelihood masquerade detection (LMD) scheme to recover the cooperative diversity gain in the distributed relay networks. In LMD, the probability of the selected relay to be a cooperative one (Pc) and that to be a masquerade one (Pm) are first calculated. Afterwards, the masquerade relay can be sentenced when Pm 〉 Pc occurs more frequently than a predefined threshold. The simulation results prove the effectiveness of the proposed LMD scheme in terms of capacity and outage probability. The impact of the power control mechanism on the masquerade detection is also discussed. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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