Cross Layer Communication Module for Ultrawideband Wireless Sensor Networks

集成、混合和复杂系统基于超宽带无线多媒体传感器网络的跨层通信模块智能优点：廉价硬件的可用性，如互补金属氧化物半导体（CMOS）相机和麦克风，能够从环境中捕获多媒体内容，促进了无线多媒体传感器网络（wmsn）的发展。wmsn由无线连接的设备组成，这些设备允许检索视频和音频流、静止图像和标量传感器数据。wmsn的实现需要对传感器网络范式进行重新思考，考虑到需要提供具有预定义服务质量（QoS）水平的多媒体内容的机制。鉴于这些挑战，本项目的目标是为wmsn中的多媒体流量开发一种新颖的跨层模块。将研究几个关键元素，以提供QoS并利用wmsn中存在的相关性。将首先开发wmsn的架构。然后，开发一个跨层控制器单元，实现对网络层QoS的支持。为了捕捉wmsn中存在的相关性，将开发一个理论框架。基于该框架，将开发一个应用感知的跨层模块，其目标是在相关节点之间建立路由，以实现网络内处理，进一步提高网络的能源效率。我们的通信模块将通过将超宽带（UWB）协议栈不同层处理的功能之间的跨层交互与关联感知多媒体处理技术相结合，为wmsn中的异构应用程序提供QoS，该技术将用于根据应用程序需求减少网络内传输的数据量。更广泛的影响：这项研究有可能影响无线多媒体传感器网络的研究和技术。佐治亚理工学院的首席研究员将在两节课上介绍无线多媒体传感器网络的主题，并从研究中获得大量信息。该项目将支持两名研究生。在模拟器的背景下开发跨层协议套件将为未来的研究人员提供一个评估平台。拟议工作的结果将发表在会议和期刊上。

Integrative, Hybrid and Complex SystemsIan F. AkyildizGeorgia Institute of TechnologyCross-layer Communication Module for Ultra Wide Band Based Wireless Multimedia Sensor NetworksIntellectual Merit: The availability of inexpensive hardware, such as complementary metal oxide semiconductor (CMOS) cameras and microphones that are able to capture multimedia content from the environment, has fostered the development of wireless multimedia sensor networks (WMSNs). WMSNs consist of wirelessly-connected devices that allow retrieving video and audio streams, still images, and scalar sensor data. The realization of WMSNs requires the sensor network paradigm to be rethought in view of the need for mechanisms to deliver multimedia content with a predefined level of quality of service (QoS). In view of these challenges, the objective of this project is to develop a novel cross-layer module for multimedia traffic in WMSNs. Several key elements will be investigated to provide QoS and to exploit the correlation that is present in WMSNs. The architecture of WMSNs will be first developed. Then, a cross-layer controller unit, which enforces network layer QoS support, will be developed. To capture the correlation present in WMSNs, a theoretical framework will be developed. Based on this framework, an application-aware cross-layer module will be developed, with the goal of establishing routes between correlated nodes to enable in-network processing and further improve the energy efficiency of the network. Our communication module will deliver QoS to heterogeneous applications in WMSNs by combining cross-layer interactions among functionalities handled at different layers of an ultra-wideband (UWB) protocol stack with correlation-aware multimedia processing techniques, which will be used to reduce in-network the amount of data to be transmitted according to application requirements.Broader Impact: The research has the potential to impact wireless multimedia sensor network research and technology. Topics on wireless multimedia sensor networks with ample input from the research will be introduced in two classes taught by the principal investigator at Georgia Tech. The project will support two graduate students. The development of a cross-layer protocol suite in the context of a simulator will serve as an evaluation platform for future researchers. The results from the proposed work will be published in conferences and journals.