Ultra-Wideband Based Next-Generation Wireless Networking

网络的下一个爆炸性增长将来自将数十亿低成本、低功耗的传感器、效应器和智能设备连接在一起。出于移动性、易于部署、美观性和成本的考虑，这些设备将主要通过无线方式进行通信。即使这样的网络一开始是作为特殊用途的本地网络，人们也预期它们将以多种方式结合在一起。它们肯定会通过网关连接到更广阔的有线互联网。这个项目的目标是找到合适的架构，在无线连接的新环境中实现类似互联网的收益。为了使无线网络支持广泛的应用和适合大规模部署，它们需要具备以下特点：(1)可以忽略干扰，允许与在共享频谱上运行的其他独立无线系统和平共存；(2)管理节点间的干扰，实现高效、公平的带宽共享；(3)支持网络节点移动性的动态节能路由和分组中继算法；(4)可扩展性，支持大量异构设备和链路；（五）精确定位能力，为重要设备提供位置信息；(6)鲁棒且节能的网络协议，可以容忍某些网络节点的故障；(7)超低功耗无线收发器，保证能量有限节点的寿命；(8)能够广泛部署的小型低成本无线收发器。本课题是在超宽带（UWB）无线信令和多跳路由的背景下对上述问题进行研究。研究旨在实现多个目标，开发(1)有效的算法，以确定在异构节点网络中跟踪设备位置所涉及的基本权衡；(2)在这种网络中路由数字通信的可靠和有效的协议，并探索这种系统的基本容量限制；(3)具有网络能量和位置感知的分布式信号处理算法，利用应用层的相关性来减少整个网络层次的资源消耗；(4)超低功耗、高度集成的单芯片CMOS架构，用于UWB收发器；(5)将基于fpga的内部测试平台（作为数字后端）与AetherWire公司的UWB模拟前端相结合的集成测试环境。最终将有ether Wire Inc.的大约30个UWB节点进行测试，从而进一步发现此类网络涉及的问题。

The next explosive growth in networks will come from connecting together billions of low cost, low power sensors, effectors, and smart devices. These will be communicating primarily through wireless means for reasons of mobility, ease of deployment, aesthetics, and cost. Even if such networks start out as special purpose local networks, people anticipate that they will come together in many ways. They will certainly be interconnected with each other through gateways to the broader wired Internet. The goal in this proposed project is to find the right architecture to enable Internet-like gains in the new context of wireless connectivity. In order for wireless networks to support a wide range of applications and be suitable for mass deployment, they will need to posses the following characteristics: (1) negligible interference that allows peaceful co-existence with other independent wireless systems operating over the shared spectrum; (2) managing interference between nodes to efficiently and fairly share bandwidth; (3) dynamic and energy efficient routing and packet relaying algorithms that support mobility of network nodes; (4) scalability to support a large number of heterogeneous devices and links; (5) precise positioning capabilities to provide location information for the devices for which this is important; (6) robust and energy efficient network protocols that tolerate failure of some network nodes; (7) extremely low power wireless transceivers to ensure longevity for the energy-limited nodes; and (8) small and low cost wireless transceivers to enable widespread deployment. This proposal is to study the above in the context of ultra-wideband (UWB) wireless signaling and multi-hop routing. Research is intended to achieve multiple objectives, Develop (1) Efficient algorithms to determine the fundamental tradeoffs involved in tracking the positions of devices within a network of heterogeneous nodes; (2) Robust and efficient protocols for routing digital communications within such networks and explore the fundamental capacity limits of such systems; (3) Distributed signal processing algorithms that are network-energy and position aware to take advantage of correlations at the application layer to reduce resource consumption throughout the network hierarchy; (4) Extremely low power, highly integrated single-chip CMOS architecture to UWB transceivers, and (5) An integrated test environment by combining an in-house FPGA-based testbed (as the digital back-end) with UWB analog front-end from AetherWire Inc. This will ultimately have approximately 30 UWB nodes from Aether Wire Inc. to test and therefore further discover issues involved with such networks.