NeTS: Small: Collaborative Research: Mobile Content Distribution in Vehicular Ad Hoc Networks

NeTS：小型：协作研究：车载自组织网络中的移动内容分发

• 批准号: 1117084
• 负责人: Wenjing Lou
• 金额: $ 27.21万
• 依托单位: Worcester Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2011-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1117084&HistoricalAwards=false
• 关键词: NeTS; Small; Collaborative; Research; Mobile; NeTS; Small; Collaborative; Research; Mobile

Mobile content distribution (MCD) is an important emerging application in vehicular ad hoc networks (VANETs). Its high and stable data rate requirement puts significant stress on the severely bandwidth-limited and highly mobile VANETs. Symbol level network coding (SLNC) provides better error-resilience and in turn higher spatial reusability for wireless transmission. It thus is a promising approach for the very bandwidth-hungry MCD networks. This project focuses on two main fundamental problems related to exploiting SLNC for MCD in VANETs. First, a theoretic study on the network capacity and performance bounds achievable by SLNC in mobile wireless networks is carried out. A new model is proposed to characterize the SLNC operation in a flow network setting. Key factors that impact the achievable throughput are identified. Methods to derive accumulated throughput for a mobile receiver following certain mobility pattern are investigated. The second research focus is on the design of distributed and localized algorithms and protocols for MCD networks using SLNC. A suite of new network protocols for SLNC-based MCD network are proposed in order to maximize the throughput of the MCD network.

移动内容分布（MCD）是车辆临时网络（VANETS）中的重要新兴应用。其高稳定的数据速率需求对严重带宽限制和高度移动的货物剂施加了重大压力。符号级别网络编码（SLNC）提供了更好的错误 - 可重复使用无线传输的空间可重复性。因此，这是一种非常有前途的MCD网络的有前途的方法。该项目着重于与将SLNC用于Vanets中的MCD有关的两个主要基本问题。首先，对SLNC在移动无线网络中可以实现的网络容量和性能界限进行了理论研究。提出了一种新模型来表征流动网络设置中的SLNC操作。确定影响可实现吞吐量的关键因素。研究了根据某些移动性模式来得出移动接收器累积吞吐量的方法。第二个研究重点是使用SLNC的MCD网络的分布式和局部算法和协议的设计。为了最大程度地提高MCD网络的吞吐量，提出了针对基于SLNC的MCD网络的新网络协议套件。