Xiulin Hu

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—Scarcity of the spectrum resource and mobility of users make Quality-of-Service (QoS) provision a critical issue in wireless networks. This paper presents a fuzzy call admission control scheme to meet the requirement of the QoS. It searches automatically the optimal number of the guard channels in a base station to make an effective use of resource and(More)
—In this paper, a new PRN code optimal design based on unequal-length code modulation is proposed. The better performance of code acquisition in weak signals will be achieved by using this method, because the cross-correlations between different signals have been sliding, thus suppressing multiple access interference effectively. Theoretical analysis and(More)
  • S Sandosh, V Akila, S Uthayashangar, Reference-Bibo Jiang, Xiulin Hu
  • 2010
Multicast routing protocols are widely used as efficient communication methods for Group-oriented applications. Decentralized system is preferred to improve bandwidth economization. However, security with the key management for such protocols remains a significant problem. In this paper, a secure group key agreement over decentralized systems is proposed.(More)