Research Projects

Scalable End-to-End Policy Routing and Traffic engineering over the Internet. Members: P. Nanda and A. Simmonds

With massive deployment of applications over the Internet in recent years and the trend to manage them efficiently with a desired QoS in mind, current Internet needs a major shift from Best Effort (BE) model to Service oriented model. Services requiring higher QoS still have to satisfy their applications with the current BE model supported by the Internet as there is absolutely no way of providing flow based guarantees to these applications. Due to heterogeneous and independent policy structure of ASs, end-to-end path set up and assuring QoS for the traffic flow is quite complex. In order to achieve a better service oriented model for the Internet, we are working on a Policy Based architecture in which we have used an integrated approach combining both policy and traffic engineering within our architecture. In a Policy Based Network, one of the important objectives is to have a network wide view for the QoS flows and then determine an end to end policy frame work based on which traffic may be forwarded between different domains. To achieve this objective, our architecture incorporates a policy mapping component in which we first identify the mapping parameters between the ASs through a centralized policy negotiation server, communicate those parameters between the ASs for a final agreement and then acts upon the agreement to maximize each domains benefit. Though such an approach is considered at a higher level within our architecture and above the network level, but actual traffic flow based on the above mentioned policy outcomes have been taken into account through rigorous monitoring and tuning of traffic engineering parameters at lower levels. Current Internet Traffic Engineering heavily depends on both Intra and Inter Domain routing protocols such as Border Gateway Protocol (BGP) (Interior BGP within the domain and Exterior BGP between the domains) to configure the routers of having network policies to be installed across various domains. BGP is considered the most important routing protocol across users of various domains and is also the industry de-facto. Hence we are investigating different approaches to carry our policy decisions for the devices both within and between the ASs in a more systematic way apart from tuning the BGP attributes for traffic engineering. In doing so, the architecture incorporates provision for a new Policy mapping protocol between various Autonomous Systems (ASs) and interacting with network wide Traffic Engineering components. In this project we are also investigating an effective way to incorporate Overlay service model within our architecture in order to determine optimal routes for various user groups on an end-to-end basis and achieve Internet wide scalability.

We believe our above mentioned approaches for the proposed architecture can make significant contribution towards deploying a service oriented next generation Internet.

Current Research Projects

	Ad-hoc Location-based Services for Mobile Multimedia. (D. Hoang, J. Chan)
	Cloud Computing and Distributed Systems. (A/Prof. Jinjun Chen, Prof. Doan Hoang, Lingfeng Chen (PhD student), Chang Liu (PhD student), Xuyun Zhang (PhD student), Gaofeng Zhang (PhD student))
	Compressive sensing of time series for human action recognition. (Oscar Perez Concha, Richard Yi Da Xu, Massimo Piccardi)
	Delayed-Multicast for video-on-demand. (D. Hoang, X. He, C. Nguyen)
	Distributed Systems and Service Discovery. (D. Hoang, B. Yousef)
	HMM-MIO: an enhanced hidden Markov model for action recognition. (Ehsan Zare Borzeshi, Oscar Perez Concha, Richard Yi Da Xu, Massimo Piccardi)
	Interactive Visualisation & Visual Analytics of Large Social Networks. (Mao Lin Huang)
	Large Scale Data Visualization. (Mao Lin Huang and Quang Vinh Nguyen)
	Network Congestion Control Modelling. (D. Hoang, M. Li)
	Optical Networking and Control Plane Intelligence. (D. Hoang)
	Peer-to-Peer Overlay Networks. (D. Hoang, H. Le, A. Simmonds)
	Personal Health Monitor. (Peter Leijdekkers and Valrie Gay)
	Programmable/Active Service Platform. (D. Hoang, B. Yousef)
	QoS Mechanisms over Wireless Internet. (D. Hoang, H. Zhou, P. Nhan)
	Scalable End-to-End Policy Routing and Traffic engineering over the Internet. (P. Nanda and A. Simmonds)
	Sign Text Detection from Outdoor Scene. (Xiangjian (Sean) He, Wenjing Jia)
	Spiral Architecture. (Xiangjian (Sean) He, Qiang Wu, Wenjing Jia)
	Vehicle Occupants Detection. (Xiangjian (Sean) He, Wenjing Jia)
	Visual Affective Computing. (Massimo Piccardi, Hatice Gunes)
	Visual Surveillance. (Massimo Piccardi, Hatice Gunes)

Past Research Projects

	Fair Intelligent Quality of Service Control and Path Discovery Mechanisms for Internet Scalable Architectures. (D. Hoang, U. Szewcow, M. Li)
	Fused Data Visualization. (Mao Lin Huang and Wu Quan)