Resource Management for High Performance Reliable Wireless Networking

高性能可靠无线网络的资源管理

• 批准号: RGPIN-2014-05458
• 负责人: Harms, Janelle
• 金额: $ 2.19万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=567188
• 关键词: Resource; Management; Performance; Reliable; Wireless

The core of my research is to develop resource management mechanisms for wireless networks in order to meet user requirements and provide reliable service. Networks must accommodate a wide range of applications. These applications have different resource requirements and different performance expectations. Managing resources in wireless networks is challenging because they have bandwidth, energy and processing constraints and they are more error-prone. Users expect to have reliable, timely delivery of services. However, these services may occur over heterogeneous wired and wireless networks. Therefore, providing network services over wireless networks with quality and reliability is a challenging problem. My research involves designing protocols for resource management for wireless networks. I use simulation, analysis and empirical studies to evaluate the performance of the mechanisms. The following research directions are proposed in this application. In wireless networks, the competition for shared access to the network is a bottleneck to meeting user requirements and providing reliable service. 1) In the 1st proposed project, new flow control and scheduling mechanisms will be designed and evaluated for multi-hop multi-packet reception ad hoc wireless networks. Promising new developments regarding multi-packet reception and multi-packet transmission at the physical layer have the potential to improve interference-related loss at the link layer. However, in previous work, we identified bottleneck issues when existing link layer access protocols are used with this technology for multi-hop wireless networks. With our proposed work, we will be able to reach the full potential of the expanded reception capability of nodes and vastly reduce the bottleneck issues of the link layer in shared environments. 2) Another critical issue with link layer access is the problem of noise interference in urban wireless networks where many wireless networks (and other equipment with interfering signals) co-exist. In the 2nd project, the problem of how nodes classify this outside interference and coordinate this knowledge adaptively with their neighbours to improve communication is addressed. In the future, even more networks and technology will co-exist. Therefore, the mechanisms designed in Project 2 are needed to allow nodes to adapt to different environments and improve reliability performance. 3) In previous work, we have developed a control framework for providing fair access to resources in contention-based link layer wireless protocols. We have also designed virtual topologies for reliable data delivery. In Project 3, this work will be combined to produce comprehensive data delivery mechanisms that include routing, reliable transmission and controlled link access. Mobility and fairness will also be considered. Virtual topologies for placement of resources serve an important role in applications such as mobile cloud computing where timely access and the placement of information is of critical importance. Reliable delivery of data over different wired and wireless networks is required for seamless service to applications. These are the contributions of the proposed work in Project 3. In summary, the ultimate goal of networking is to provide reliable service that meets the needs of the many applications that use the network. In wireless networks, the link layer which handles access to the transmission medium, is a bottleneck to good performance. This research address the issues at this layer by providing mechanisms to significantly improve performance, including increased reliability, increased throughput, reduced delay and increased fairness.

我研究的核心是开发无线网络的资源管理机制，以满足用户需求并提供可靠的服务。网络必须适应广泛的应用。这些应用程序具有不同的资源要求和不同的性能期望。管理无线网络中的资源具有挑战性，因为它们具有带宽、能量和处理限制，并且更容易出错。用户期望获得可靠、及时的服务。然而，这些服务可以通过异构有线和无线网络进行。因此，通过无线网络提供高质量和可靠的网络服务是一个具有挑战性的问题。我的研究涉及设计无线网络资源管理协议。我使用模拟、分析和实证研究来评估机制的性能。本申请提出以下研究方向。在无线网络中，网络共享访问的竞争是满足用户需求和提供可靠服务的瓶颈。 1) 在第一个拟议项目中，将为多跳多数据包接收自组织无线网络设计和评估新的流量控制和调度机制。关于物理层多数据包接收和多数据包传输的有希望的新发展有可能改善链路层的干扰相关损耗。然而，在之前的工作中，我们发现了当现有链路层访问协议与该技术用于多跳无线网络时出现的瓶颈问题。通过我们提出的工作，我们将能够充分发挥节点扩展接收能力的潜力，并大大减少共享环境中链路层的瓶颈问题。 2) 链路层接入的另一个关键问题是城市无线网络中的噪声干扰问题，其中许多无线网络（以及其他具有干扰信号的设备）共存。在第二个项目中，解决了节点如何对外部干扰进行分类并与其邻居自适应地协调这些知识以改善通信的问题。未来，更多的网络和技术将共存。因此，需要项目2中设计的机制来让节点适应不同的环境，提高可靠性性能。 3）在之前的工作中，我们开发了一个控制框架，用于在基于竞争的链路层无线协议中提供对资源的公平访问。我们还设计了虚拟拓扑以实现可靠的数据传输。在项目 3 中，这项工作将结合起来产生全面的数据传输机制，包括路由、可靠传输和受控链路访问。还将考虑流动性和公平性。用于资源放置的虚拟拓扑在移动云计算等应用中发挥着重要作用，其中信息的及时访问和放置至关重要。为应用程序提供无缝服务需要通过不同的有线和无线网络可靠地传输数据。这些是项目 3 中拟议工作的贡献。总之，网络的最终目标是提供可靠的服务，满足使用网络的许多应用程序的需求。在无线网络中，处理传输介质访问的链路层是良好性能的瓶颈。这项研究通过提供显着提高性能的机制来解决这一层的问题，包括提高可靠性、提高吞吐量、减少延迟和提高公平性。