NeTS-WN: Collaborative Research: Toward High-Performance Mesh Networks

NeTS-WN：协作研究：迈向高性能网状网络

• 批准号: 0721313
• 负责人: Chunsheng Xin
• 金额: --
• 依托单位: Norfolk State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0721313&HistoricalAwards=false
• 关键词: NeTS; WN; Collaborative; Research; Toward

This project studies three fundamental problems to improve the performance of wireless mesh networks. (1) Managing delay and jitter. One fundamental problem affecting the performance of current mesh networks is the hop-by-hop relaying of data, resulting in significant per-hop and per-packet delay and/or jitter. This project designs a new MAC paradigm and a distributed method of scheduling data transmissions in a path-aware manner, to eliminate per-packet delay and jitter while minimizing per-hop delays. (2) Capacity analysis and utility optimization. As an augmentation to the large amount of simulation studies on multi-channelmulti-radio mesh networks, this project develops a general theoretical model to analyze both unicast and broadcast capacities of mesh networks, and applies the model to optimally assign channels to maximize capacity, as well as optimizing application-specific utility functions relevant to user-perceived network performance. (3) Channel assignment for dynamic spectrum access mesh networks. Recent advancement in cognitive radio technology and regulatory reform in spectrum policy offer dynamic spectrum access (DSA) capability to mesh networks via providing dynamically available channels. This project adopts a cross-layer and path-centric approach for assigning dynamic channels inDSA mesh networks to achieve high spectrum utilization and traffic throughput. Through developing innovative protocols, analysis and optimization models, this project promotes development of high-performance multi-radio, multi-channel, and DSA-capable mesh networks. The research on DSA mesh networks potentially facilitates the communication among different emergency management divisions in disaster rescues operations. This project also benefits the underrepresented minority students through education and research.

该项目研究了三个基本问题，以提高无线网络的性能。 （1）管理延迟和抖动。影响当前网络网络性能的一个基本问题是数据的跳跃中继，从而导致每跳和每包延迟和/或抖动。该项目设计了一种新的MAC范式和一种以途径感知方式调度数据传输的分布式方法，以消除每包延迟和抖动，同时最大程度地减少每跳延迟。 （2）能力分析和实用性优化。为了增强对多渠道Multi-Radio网络的大量模拟研究，该项目开发了一种一般理论模型来分析网格网络的单播和广播能力，并将该模型应用于最佳分配渠道以最大程度地利用能力，并最大程度地利用了相关的应用程序功能，并优化了相关的用户网络性能。 （3）动态频谱访问网格网络的通道分配。频谱策略的认知无线电技术和监管改革的最新进步提供了动态频谱访问（DSA），通过提供动态可用的渠道为网络网络提供了动态功能。该项目采用了一种以跨层和中心为中心的方法来分配动态通道INDSA网络网络，以实现高频谱利用率和流量吞吐量。 通过开发创新协议，分析和优化模型，该项目促进了高性能多拉迪奥，多渠道和具有DSA能力的网格网络的开发。关于DSA网络网络的研究有可能促进灾难救助操作中不同紧急管理部门之间的沟通。该项目还通过教育和研究使代表性不足的少数民族学生受益。