SENSORS: Theory and Practice of Sensor Network Architectures

在我们的世界中充满了传感器网络，需要对以可扩展和资源有效的方式连接和管理传感器节点与通信网络的技术有基本的了解。和实施，集成了无线网络和多用户通信领域的研究专长，并提供了许多操作，提高学生在传感器网络领域的研究和教育的能力，在本科生和研究生水平。传感器网络实践的主导趋势是考虑一个密集的微小传感器节点的集合，这些节点具有有限的计算和通信能力，所有这些节点都通过a .at或ad hoc连接，无线网络。然而，多用户通信的理论研究表明，通过复杂的协调多用户节点可以获得显著改善的性能，这需要更通用的无线电、层次结构，甚至可能是稀疏的有线连接。因此，所提出的研究的目标是：1）识别允许实现理论上已经研究过的复杂传输方案的网络架构，2）在传感器网络的背景下分析这些方案，并采用跨层方法设计新的方案; 3）实现这些方案，并在realtestbed上验证它们的行为。该项目的智力价值在于提高了对无线网络的重要新兴类别的理解，并试图将理论与实践结合起来。在理论上提出的战略和实际实施的战略之间不断扩大的差距，对于理解和提高这些战略的性能和寿命至关重要。资源受限的网络。通过严格的分析方法，对网络信息理论的新兴领域做出贡献，导致能量-e. cient和延迟受限协议设计的实质性进展。更广泛的影响部分地通过整合教学和研究的努力表现出来。硬件平台上的实验在研究和教育中起着不可或缺的作用。它将用于验证，以及为本科生和研究生项目，为学生提供了一个真实的传感器网络试验台的实践经验。该项目将使必要的硬件的收购。两个新开发的研究生课程多用户通信和无线网络将贝内于这个项目。预计，通过这种密切的联系，研究和教育交叉施肥彼此在这个建议的框架内。此外，由于所提出的体系结构和相关问题延续到其它重要的网络类别，因此来自该研究的结果将对更广泛的无线网络类别产生影响，包括多跳蜂窝网络，这可能很快成为我们社会的一个主要部分的重要性。更广泛的影响也将通过广泛传播的结果，并通过目前和未来与其他大学的互动。1

Populating our world with networks of sensors requires fundamental understanding of tech-niques for connecting and managing sensor nodes with a communication network in scalableand resource-e .cient ways.The proposed research involves a comprehensive program of sensornetwork architecture,design,evaluation,and implementation that integrates research expertisein the areas of wireless networking and multiuser communications and provides numerous op-portunities for enhancing student research and education in the area of sensor networks,at bothundergraduate and graduate levels.The dominant trend in sensor network practice is to consider a dense collection of tiny sensornodes with limited computation and communication capabilities,all connected via a .at,orad hoc,wireless network.Yet theoretical studies in multiuser communications suggest thatsubstantially improved performance can be obtained through sophisticated coordination amongnodes,requiring more versatile radios,hierarchy,and perhaps even sparse wired connectivity.Thus,the objectives of the proposed research are to:1)identify network architectures thatpermit the implementation of sophisticated transmission schemes that have been theoreticallystudied,2)analyze such schemes in the context of sensor networks and design new ones adoptinga cross-layer approach and 3)implement these schemes and verify their behavior on a realtestbed.The intellectual merit of the project lies in the improved understanding of an importantemerging class of wireless networks,and in the attempt to unite theory and practice.Clos-ing the widening gap between theoretically proposed strategies and practically implementedones is crucial to understanding and improving the performance and lifetime of these resource-constrained networks.Through a rigorous analytic approach,contributions to the emerging areaof network information theory are expected,leading to substantial advances in energy-e .cientand delay-constrained protocol design.The broader impact is manifested in part through an e .ort to integrate teaching and research.Experimentation on a hardware platform plays an integral role in both research and education.It will be used for veri .cation,as well as for undergraduate and graduate projects that providestudents with hands-on experience in a real sensor network testbed.This project will enablethe acquisition of the necessary hardware.Two newly developed graduate courses on multiusercommunications and wireless networking will bene .t greatly from this project.It is anticipatedthat by such close linking,research and education cross-fertilize each other within the frameworkof this proposal.Further,since the proposed architectures and related issues carry over to otherimportant classes of networks,the .ndings from this research will have an impact on a muchbroader class of wireless networks,including multihop cellular networks,that may soon becomesigni .cant for a major part of our society.The broader impact will also be felt through a broaddissemination of results and through current and future interactions with other universities.A-1