CAREER: Cross-Layer Protocols for Robust and Scalable Heterogeneous Wireless Networks

无线网络的未来将是不同的，使用具有各种功能和限制的各种空中接口。它将通过一个能够感知人们的存在和背景并对他们的需求敏感的数字环境来增强人们的能力。不幸的是，今天的空中接口只是共存，在使它们合作以提供强大、安全和可扩展的网络方面几乎没有取得什么成就。两个主要问题阻碍了这类网络的成功部署：资源的限制以及不同设备之间通信的健壮性和安全性的脆弱性。这些问题的复杂性和严重性随着网络的规模和组成网络的设备的多样性而增加。该项目研究跨层通信协议和资源管理策略的设计和原型，以适应环境中的变化(流量特征、信道质量、拓扑和移动性、能量和对手攻击)。该方法基于广义冲突图、线性规划、编码和信息论等理论概念，同时也基于跨层资源代价度量、自适应物理层和竞争感知路由的启发式技术。该项目考虑了一种跨层方法来增强对对手的健壮性。该项目的成果有两个：用于健壮、可扩展和安全通信的跨层算法和协议，以及包括模拟器和原型在内的评估工具。为“环境智能”开发一种创新的网络技术，将是一个充满活力、包容、安全和生产力的社会发展的重要推动因素，在这个社会中，获取服务和信息是廉价、透明的，最重要的是安全。

The future of wireless networking will be heterogeneous, making use of various air interfaces with a wide variety of capabilities and constraints. It will empower people through a digital environment that is aware of their presence and context and sensitive to their needs. Unfortunately, today's air interfaces merely co-exist, and very little has been achieved in making them co-operate to provide robust, secure, and scalable networks. Two main issues hinder the successful deployment of such networks: limitation of resources and vulnerability of robustness and security of communications among heterogeneous devices. The complexity and criticality of these issues increase with the size of the network and the variety of the devices that compose it. This project investigates the design and prototyping of cross-layer communication protocols and resource-management strategies to accommodate variations in the environment (traffic characteristics, channel quality, topology and mobility, energy, and adversary attacks). The approach is based on theoretical concepts such as generalized conflict-graphs, linear programming, coding and information theory, but also heuristic techniques for cross-layer resources cost-metrics, adaptive physical-layer, and contention-aware routing. The project considers a cross-layer approach to robustness against adversaries. The outcomes of the project are two fold: cross-layer algorithms and protocols for robust, scalable and secure communication, and evaluation tools including simulators and prototypes. The development of an innovative networking technology for "ambient intelligence" will be a significant enabling factor in the development of a vibrant, inclusive, safe, and productive society where access to services and information is cheap, transparent, and, most importantly, secure.