Rentao Gu

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This paper proposed a secure and efficient metro-access network scheme which combines network coding and source encryption to break the transport limitation of metro access networks. The proposed scheme provides higher throughput over the bottleneck links and prevent wiretap and modification attack at the same time. What's more, the number of message to be(More)
Software Defined Optical Network (SDON) is gaining more and more adaptability, as flexible optical transceivers make it possible to control the switching characteristics in the physical layer. Towards upper layer, openness is also being considered, an open framework to dynamically adapt Transmission Control Protocol (TCP) has already been proposed. However,(More)
Network virtualization is meant to improve the efficiency of network infrastructure by sharing a physical substrate network among multiple virtual networks. Virtual network embedding (VNE) determines how to map a virtual network request onto a physical substrate. In this paper, we first overview three possible underlying substrates for interdatacenter(More)
Facing with the huge P2P traffic challenge, network coding shows great advantages in improving system efficiency. This paper proposed a solution to integrate network coding into passive optical networks and compatible with the existing Ethernet passive optical network named NC-PON. To increase more efficiency, a software defined passive optical networks(More)
The huge increase in broadband service requires much more bandwidth than ever before; however, due to the cost sensitivity, it is not possible to pursue high transmission rate blindly in the access network, which requires us to consider how to improve network efficiency. In this paper, a software-defined passive optical network architecture with network(More)
Port-based or payload-based analysis is becoming difficult for accurate traffic identification when many applications use dynamic port numbers and encryption to avoid detection. In this paper we present an approach for online traffic classification relying on the observation of the first n packets of a flow. The packet size and inter-arrival times of the(More)