NEDG: Cross-Layer Designs for Video Streaming in Multihop Wireless Mesh Networks

NEDG：多跳无线网状网络中视频流的跨层设计

• 批准号: 0831914
• 负责人: Prasant Mohapatra
• 金额: $ 20万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0831914&HistoricalAwards=false
• 关键词: NEDG; Cross; Layer; Designs; Video

Cross-Layer Designs for Streaming Video in Multihop Wireless Mesh NetworksAs unprecedented advances on wireless mesh networks continue, there is an increasing expectation on such networks to support content-rich multimedia communications (e.g., video and voice) in addition to simple data communications. Given the resource constraints and the uncertainties or variable nature of resource availability, quality of service (QoS) provisioning in wireless meshes is a challenging task. These constraints coupled with the requirements for supporting video traffic, layer-specific and isolated solutions are not adequate; hence, arises the need for cross-layer and integrated design approaches.In this project, the researcher will pursue cross-layer approaches to support video streaming over wireless mesh networks. The work will be primarily based on experimental studies, backed by theoretical analysis, and evaluated on an existing wide-area mesh test-bed. Intellectual components of the project are: (a) Experimental characterization of video streaming in wireless mesh networks; (b) Exploring cross-layer schemes for admission control and scheduling of video flows; (c) Exploiting packet retransmissions for quality enhancement of video streaming; (d) Experimental validation of the proposed schemes using the existing test-bed. The outcome of the project will have a broader impact on the society as well as the education and training of the students. Video streaming over wireless mesh would enhance and facilitate remote monitoring facilities and enable new applications. Several parts of the project will be integrated with the educational missions at UC Davis, both at graduate and undergraduate level. Dissemination of the results and inferences will also incite further research in the broader community.

在多跳无线网状网络中用于流传输视频的跨层设计随着无线网状网络上前所未有的进步的继续，对这种网络支持内容丰富的多媒体通信（例如，视频和语音）。由于无线网格的资源约束和资源可用性的不确定性或可变性，在无线网格中提供服务质量（QoS）是一项具有挑战性的任务。这些限制再加上支持视频流量的要求，层特定的和孤立的解决方案是不够的，因此，需要跨层和集成的设计approaches.In这个项目中，研究人员将追求跨层的方法来支持视频流在无线网状网络。这项工作将主要基于实验研究，以理论分析为支持，并在现有的广域网试验台上进行评估。该项目的智力组成部分是：（a）无线网状网络中的视频流的实验特性;（B）探索跨层方案的准入控制和视频流的调度;（c）利用数据包重传的视频流的质量增强;（d）使用现有的测试床的拟议方案的实验验证。该项目的成果将对社会以及学生的教育和培训产生更广泛的影响。通过无线网格传输的视频流将增强和促进远程监控设施，并实现新的应用。该项目的几个部分将与加州大学戴维斯分校的研究生和本科生教育任务相结合。结果和推论的传播也将在更广泛的社区中激发进一步的研究。