Mobility and Resource Management for Multimedia Mobile Computing

多媒体移动计算的移动性和资源管理

• 批准号: 9704404
• 负责人: Zygmunt Haas
• 金额: $ 15万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-01 至 2003-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9704404&HistoricalAwards=false
• 关键词: Mobility; Resource; Management; Multimedia; Mobile

Project URL: http://www.ee.gatech.edu/research/labs/bwn/projects/nsf http://www.ee.cornell.edu/~haas/nsf.html In this proposal, we deal with two central issues in Multimedia Mobile Computing, namely Mobility Management and Connection Admission. More specifically, we ask the questions of how to efficiently locate users within massively accessed internet (we refer to a network of networks as an internet), based on the micro-networking communication environment and how to limit the multimedia connection admission in such an environment, as to guarantee quality of service to already accepted connections. Our approach is based on the idea of User Mobility Profile (UMP). As a user roams within an internet, the system continuously collects information on the users' mobility and connection patterns. This information is used to anticipate the future location of the active users, thus, reduces the search space and, consequently, the cost of locating the user. This is achieved through the dynamic calculation of location area. In our approach, the location area is defined per mobile and is calculated, using the UMP, ``on the fly,'' as the user roams between different networks. Calculation of the location area is done as to minimize the user's mobility management cost. Furthermore, the statistical knowledge of users' future positions embedded within the UMP allows prediction of resource utilization and, thus, reduces the probability of resource shortage. The result is that multimedia connections can be supported with a much stricter Quality-of-Service (QoS) guarantees. To achieve the goal of guaranteed QoS, we employ a new concept, called the Shadow Clique, which is the representation of the probability of user's future locations, given its current position in the network. The Shadow Clique is, in fact, a digest of the UMP and allows easy and fast determination of the future resource requirements in different network s. In our research we will address the following issues using both analytical and simulation tools: 1. The optimal strategy for UMP information reporting and collection 2. The use of the UMP for reducing the registration requirements and the user location costs 3. Methods for grouping the networks into paging groups, as to reduce the mobile paging costs, subject to delay constraints 4. The use of the UMP to create the Shadow Clique digest 5. The use of the Shadow Clique concept to predict the future network resource utilization 6. The use of the Shadow Clique concept in the Connection Admission algorithm It is obvious that as the six topics are highly related, a close collaborative interaction and continuous exchange of information and results is essential for the success of this project. To estimate the potential impact of our work, one must envisage the future use of the Internet services and the mobile applications. These are responsible for much of the recent research in the Mobile Multimedia field. However, before a wide-spread use of the mobile applications can be realized, the fundamental questions of how to manage the mobility of such large volume of users and how to manage the resources for multimedia communication need to be addressed. Our proposal is a significant step in this direction.

项目网址：http://www.ee.gatech.edu/research/labs/bwn/projects/nsf http://www.ee.cornell.edu/~haas/nsf.html 在本建议中，我们处理两个中心问题， 多媒体移动的计算，即 移动性管理和连接准入。 更具体地说，我们问的问题是 如何在大规模访问的因特网（我们指的是网络的网络）中有效地定位用户 作为互联网），基于微网络 通信环境 以及如何限制多媒体连接许可 在这样的环境中， 保证已接受连接的服务质量。 我们的方法是基于这样的想法， 用户移动性配置文件（UMP）。 当用户在因特网内漫游时， 系统不断收集 关于用户的移动性和连接模式的信息。 这些信息用于预测未来 因此，活动用户的定位减小了搜索空间，并因此减小了定位用户的成本。 这是通过位置的动态计算来实现的 区在我们的方法中，位置区域定义为 移动的，并使用UMP计算，"在飞行中，“当用户在不同的 网络.完成位置区域的计算 以最小化用户的移动性管理成本。此外，用户的统计知识 未来嵌入UMP的职位允许 资源利用率的预测，因此， 降低了资源短缺的概率。 其结果是，多媒体连接可以通过 更严格的服务质量（QoS）保证。 为了达到保证QoS的目标，我们采用了 一个新的概念，叫做影子集团， 也就是概率的表示 用户未来的位置， 鉴于其在网络中的当前位置。 实际上，影子集团 UMP的摘要，并允许轻松快速地确定 不同网络中的未来资源需求。 在我们的研究中，我们将使用分析和模拟工具解决以下问题： 1. UMP信息报告和收集的最佳策略 2.利用统一市场机制减少注册要求， 用户位置成本 3.用于将网络分组为寻呼组的方法， 降低移动的寻呼成本，服从延迟约束 4.使用UMP创建影子集团摘要 5.使用影子集团概念来预测未来网络 资源利用 6.影子集团概念的使用 连接接纳算法 显然，由于这六个主题高度相关， 互动和不断交流信息和成果至关重要 这个项目的成功。 为了评估我们工作的潜在影响， 人们必须设想未来的使用 互联网服务和移动的应用。 这些都是造成最近 移动的多媒体研究 领域然而，在广泛使用 可以实现移动的应用， 如何管理如此大量用户的移动性以及如何管理资源的问题 多媒体通信需要解决的问题。 我们的建议是朝着这个方向迈出的重要一步。