Towards a cost-effective, software-centric, and Quality of Service (QoS) friendly framework for next generation networks

由于互联设备的出现以及新服务和应用的引入，当今的网络流量正在迅速增加。互联网流量的这种增长对网络运营商满足其运营商级要求(如服务质量(Qos))的能力构成了威胁，并对其成本结构构成了压力。因此，具有成本效益的Qos友好网络的优势是显著的，因为它不仅将使运营商在其内部成本结构和Qos改进方面受益，而且使他们能够向其客户提供具有竞争力的定价。我的研究计划的长期目标是研究和开发一种新颖的综合网络转型框架，该框架将促进从当今的传统网络向以软件为中心、具有成本效益和服务质量友好的架构的迁移，该架构将在提供运营商级质量保证的同时将网络资本和运营成本降至最低。为了实现这一目标，我的研究计划将在五年内重点关注以下短期目标：(1)通过软件定义网络(SDN)和网络功能虚拟化(NFV)开发能够保证服务质量并提供成本降低的以软件为中心的体系结构；(2)制定有助于缩小网络规模的接入网络政策和指南；(3)开发以网络边缘为中心的内容交付，使内容能够放置在靠近最终用户的位置；以及(4)开发必要的流量工程算法，以确保在最大限度地降低网络基础设施成本的同时以尽可能最佳的服务质量支持服务/应用。通过利用上述研究主题/目标的结果，我的研究将提出以软件为中心的体系结构，该体系结构将对开发具有更好服务质量支持、经济高效的网络产生深远影响。该研究项目的预期结果将使致力于基于SDN/NFV的经济高效的网络基础设施、网络运营商(即，互联网服务提供商)、终端用户/客户以及整个加拿大电信市场的更广泛的研究团体受益。该研究计划的主要好处是：(1)通过该研究计划开发的新型网络架构、混合优化算法和端到端网络路由将为改变游戏规则的解决方案提供基石，并为未来的研究奠定基础。(3)网络运营商将能够为其向客户提供的服务提供更好的服务质量。(3)降低成本将有助于运营商在市场上更具竞争力，客户将享受到他们所订购的服务的合理价格。(4)我的HQP将获得相关经验并发展加拿大信息和通信技术(ICT)市场所需的技能。

Today's networks traffic is increasing rapidly due to the emergence of connected devices as well as the introduction of new services and applications. Such growth in Internet traffic poses a threat to the network operators ability to meet its carrier-grade requirements such as Quality of Service (QoS) as well as putting pressure on their cost structure. Thus, the advantage of having a cost-effective QoS friendly network is significant as it will not only benefit the operators on their internal cost structure and QoS improvement but also enables them to offer their customers competitive pricing. The long-term objective of my research program is to investigate and develop a novel comprehensive network transformation framework that would facilitate the migration from today's traditional network to a software-centric, cost-effective, and QoS friendly architecture that would offer carrier-grade quality guarantees while minimizing network capital and operational expenses. In order to accomplish this, my research program will focus on the following short-term objectives over the five-year period: (1) Developing a software-centric architecture through Software Defined Networking (SDN) and Network Function Virtualization (NFV) that can guarantee QoS and offers cost reductions; (2) Developing access network policies and guidelines that lead to a reduction in network size; (3) Developing network edge-centric content delivery that would allow the contents to be located close to the end user; and (4) Developing necessary traffic engineering algorithms for ensuring services/applications are supported with the best possible QoS while minimizing the network infrastructure cost. By leveraging the results from the above research themes/objectives, my research will propose a software-centric architecture which will have a profound impact on the development of a cost-effective network with better QoS support. The expected outcomes of this research project will benefit the broader research community working towards an SDN/NFV based cost-effective network infrastructure, network operators (i.e., ISPs), the end users/customers, and overall, the Canadian Telecom market. The major benefits of this research program are: (1) The novel network architectures, hybrid optimization algorithms, and end-to-end network routing that will be developed through this research program will provide the cornerstone for a game-changing solution and for future research to build upon. (3) Network operators will be able to offer better QoS for its offered services to their customers. (3) Cost reduction will assist the operators in becoming more competitive in the marketplace, and the customers will enjoy affordable prices for their subscribed services. (4) My HQPs will gain relevant experience and develop the skills needed by the Canadian Information and Communication Technology (ICT) market.