NeTS: Small: Collaborative Research: A Service Centric Architecture for Efficient Spectral Utilization in Wireless Networks

该项目将从质疑无线网络的基本设计范式开始，在无线网络中，对于需要多种服务的大量用户来说，频谱资源有限。该项目的最终目标是将无线网络的应用基础从无线互联网扩展到可扩展的移动医疗、急救、安全应用、交通、工厂自动化和机器人。该项目的主要优势将是带来理论基础，以及系统层面的设计和算法，以开发一个可实现的网络。pi计划与其工业合作伙伴密切合作，以确保项目成果影响下一代无线网络。这项研究提出了一种全新的方法来解决频谱效率问题，它反映了随着网络从定义良好的用户和运营商的经典范式向网络是提供服务的工具这一概念的转变，网络哲学的本质正在发生变化。那么，未来以服务为中心的网络的主要目标是分发内容并提供有关正在进行的流程的最新信息。在过去的几年里，不同的无线服务数量的增加给供应商的网络带来了前所未有的压力，以至于当前的架构无法扩展以满足用户需求的指数级增长和服务的差异性。为了应对这一危机，本研究满足了从用户需求的静态视图到利用服务特性的垂直集成架构所需的范式转变。这个项目的主要目标是构建一个以服务为中心的无线网络。本文引入了全网络认知的概念来探讨这些服务的属性和差异以及网络节点的异质性。在物理层行使“真实认知”，网络中的节点将被假设为使用灵活的无线电操作，并且网络与无线电接入技术无关；然而，该网络的设计将利用这种灵活性。因此，全网认知的概念贯穿无线网络设计的多个层次，并在两个耦合的方向上重新审视核心网络的基础，一个是服务中心网络的调度，另一个是延迟敏感服务的网络供应。

This project will begin by questioning the basic design paradigms of wireless networks, where there are limited spectral resources for a large population of users needing a diverse set of services. The ultimate goal of the project is to expand the application base of wireless networks from wireless Internet, to include scalable mobile healthcare, first-responders, security applications, transportation, factory automation and robotics. The main strength of the project will be to bring theoretical foundations, as well as system level designs and algorithms to develop a realizable network. The PIs plan to work closely with their industrial partners to ensure that project outcomes impact next-generation wireless networks. This research presents a fundamentally novel approach to address spectrum efficiency that reflects the shifting nature of networking philosophy as networks migrate from the classical paradigm of well-defined users and operators to the notion that networking is a tool for the provision of services. Then the primary objective of future service centric networks is to distribute content and to provide fresh information about on-going processes. Over the last few years, the rise in the number of different wireless services has put unprecedented pressure on providers' networks, to the point that current architectures cannot scale to meet the exponential growth of users' demands and the dissimilarities in the services. To confront the crisis, this research meets the required paradigm shift away from a static view of users' needs and in accord with a vertically integrated architecture to harness features of the services. The driving vision in this project is to architect a wireless network with a prevailing service centric philosophy. The concept of network-wide cognition is introduced in this endeavor to explore attributes and disparities of these services as well as heterogeneity of network nodes. Exercising 'true cognition' at the physical layer, nodes in the network will be assumed to operate with flexible radios and that the network is agnostic to the radio access technology; however, the network will be designed to exploit this flexibility. Therefore, the concept of network- wide cognition substantiates across several layers of wireless network design and revisits core network foundations in two coupled thrusts one on scheduling for service centric networking and the other on network provision for delay sensitive services.