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Take a research in depth on the modeling problem of service path selection based on SON. Firstly, the optimal model is built with the optimal goal of balanced loading and with the functional constraints of users for composed service and multi-QoS constraints. Then the layered method and improved Ant algorithm are adopted to solve this problem. Finally, a simulated emulation is made to the algorithm,...
The increasing growth of the global Internet making the shortcomings of its unstructured topology and distributed routing algorithm are exposed more rapidly. To design a controllable, scalable and manageable backbone network with a simple, efficient architecture is very imperative. Among many topologies, Tree topology which has a natural hierarchical structure and explicit end-to-end transmission...
The large amount of bandwidth and other resources required to deliver streaming media limits the number of concurrent users. We propose a virtual active network (VAN) architecture for streaming media data delivery over wide area networks. In the proposed architecture, cooperating proxies support multiplexing and delivery of live streaming media. The hierarchical delivery structure is dynamically adjusted...
Multimedia communication networks, such as the Internet, are heterogeneous in their nature due to the usage of different methods for content distribution. The efficiency of multimedia distribution depends on the variety of communication protocols that are simultaneously running (composed) over different network hosts in order to resolve packet conflicts. A very natural question that arises in such...
Today's Internet is facing many problems which did not take into account in its initial design, such as routing scalability, mobility and security. No matter evolutional or revolutionary solutions that are proposed in recent years, a recognized promising direction is to separate customer network from core network and separate identification from location. In this paper, we sketch out an architecture...
While transparent optical networks become more and more popular as the basis of the next generation Internet (NGI) infrastructure, such networks raise many security issues, which do not exist in traditional optoelectronic networks. The existing protection schemes which rely heavily on fault detection with the use of network monitoring performed by optoelectronic conversion at the switching nodes,...
It has been widely recognized that the current Internet routing system is facing serious scaling problem. Several efforts argue that the routing scaling problem necessitates architectural changes. In this paper, we propose a scalable routing architecture for future Internet. Our proposal goes along the ideas of inter-domain/intra-domain routing separation and provider/customer networks separation,...
Overlay networks have emerged as a means to enhance end-to-end application performance and availability. Network topology plays an important role in utilizing resources in peer-to-peer systems. Epidemic algorithms are potentially effective solutions for disseminating information in large scale and dynamic systems. P2P networks are popular for their dynamicity, but they are easy to deploy, robust and...
Low-cost wireless routers are changing the way people connect to the Internet. They are also very cheap, albeit quite limited, Linux boxes. These attributes make them ideal candidates for wireless mesh routers. This paper presents a minimally invasive mechanism for redundant multipath routing in kernel-space to achieve high reliability with high throughput in a mesh network. This service is essential...
Several research studies have been devoted to improving the reliability and performance of the Internet by utilizing redundant communication paths between end points. Multihoming, coupled with intelligent route control, and overlay networks are two main streams in this area of research which attempt to leverage redundant connections of the Internet for increased reliability and performance. However,...
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