Zhou Huachun

Topology-based data dissemination approaches for large scale data centric networking architecture

Massive information flows are generated from interactive processing and visualizations. To efficiently support information transmission over the Internet, information centric architecture has been recently proposed. In this paper, we consider an information centric architecture, called the data centric networking architecture to provide communication services to big data, where a service identifier is used to name the data objects. We propose different approaches for the dissemination of data objects in a large-scale data centric network. In particular, we propose various approaches to link the data dissemination approach with the topology of the Internet. Further, we evaluate the proposed approaches with respect to data delivery efficiency, round-trip time improvement, and deployment cost. Based on the results obtained from this study, it can be shown that by disseminating data objects to small ISPs, the data delivery efficiency can be significantly improved within an acceptable deployment cost.

A new mobile multicast method based on the THMLD protocol

Some mobile multicast schemes have been proposed in the past few years, but most of them study the reconstruction of multicast delivery tree, but little consider the mobile group membership management. In this paper, we propose a new mobile multicast method based on Two-Hop Multicast Listener Discovery (THMLD) protocol which provides the mobile multicast membership management function by forwarding the MLD messages to its neighboring subnets. To evaluate its performance, we set up the simulation platform and compare it with the traditional mobile multicast methods. The simulation results show that the proposed method can reduce the multicast join delay significantly.

The development research of IPSEC-VPN based on address-split-mapping mechanism

Currently, Internet, adopting the TCP/IP suits, is an end-to-end architecture. TCP/IP is an open architecture, and its design principle only focuses on the efficiency of information transmission, while it does not consider the security issues. IPsec VPN has been proposed to solve the core network security issue. However, it is believed that the current use of IP addresses to denote both the location and the identity of a host is seen as the source of many Internet problems. Address-split-mapping network cleanly separates location from identity of host, and divides Internet into the backbone network and access network. This mechanism helps to solve the Internet problems such as security, mobility, multihoming, etc. Based our previous research work on Address-Split-Mapping mechanism, this paper describes the design, implementation and experiment results of IPsec-VPN based on Address-split-mapping.