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Qu Jun-suo
Xi’an University of Posts & Telecommunications

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A security communication scheme for Real-Time EPON Qu Jun-suo
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 5: September 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

Problem of real-time performance is a mostly obstacle on Ethernet used to industrial control. In this paper, proposed a RT-EPON concept, combines real-time performance of real-time Ethernet and efficiency of EPON. And the security threats to the proposed architecture are analyzed. By utilizing the symmetric cryptographic techniques and challenge-response mechanism, a secure communication scheme with encryption and authentication functions is presented. DOI:http://dx.doi.org/10.11591/telkomnika.v10i5.1349 
A algorithm of fast digital phase modulation signal recognition Qu Jun-suo
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 8: December 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

Classifications of digital modulation, the signal characteristics of the phase of the cycle will cause the phase wrapped and reduce overlapping signals in the received RF digital modulation automatically correct classification probability. According to the principle of minimum mean square, a phase modulation and phase modulation signal classification features as well as 2PSK and MPSK classification. The experiments illustrate the robust of the feature-based approach for automatic digital modulation classification and a higher recognition probability suitable to various pulse shaping filters, roll-off factors and symbol rates.DOI: http://dx.doi.org/10.11591/telkomnika.v10i8.1666
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