Routing, mobility management and network middleware for heterogeneous mobile wireless networks

异构移动无线网络的路由、移动管理和网络中间件

• 批准号: 250243-2007
• 负责人: Jaseemuddin, Muhammad
• 金额: $ 1.25万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=479535
• 关键词: Routing; mobility; management; network; middleware

Wireless Networks evolve over the years, driven by the development in radio access technology and the diversity of application demands, to 3G cellular networks, ad hoc networks, mesh networks, and more upcoming sensor networks. Diverse and evolving application requirements and usage scenarios indicate that a future wireless network would be a heterogeneous network formed by integrating the above access networks through a common platform of IP network. The objective of the proposed research is to investigate three problem areas in heterogeneous wireless networks: Routing, Mobility Management, and Network Middleware. Each of these problems is critical for future wireless networks. Also, we have opportunity of leveraging our current research and expertise in dealing with pressing issues related to these problems. Routing is a fundamental network service, which becomes complex for wireless networks due to a host of challenges related to mobility, power constraints, wireless link instability, and path interference. Smart antenna and sophisticated power control approach bring opportunities in improving link throughput and reducing the blockage of paths due to interference caused by ongoing communication in multi-hop wireless networks. However, it also brings complexity in the route control and selection process. Mobility management is critical for the performance of maintaining communication of mobile nodes. It becomes more complicated for high-speed and heterogeneous wireless networks. Conventional approach of applications accessing network services is through communication stack and socket API. Heterogeneity, mobility, ubiquity and unique characteristics of above access networks pose new challenges to the access and management of network services, which can no longer be provided by simple conventional mechanisms. Network middleware is important in providing a platform for the implementation of sophisticated algorithms and the facilitation of application development and deployment.

无线网络在无线接入技术的发展和应用需求的多样性的推动下，经过多年的发展，发展到了3G蜂窝网络、自组织网络、网状网络和更多即将到来的传感器网络。多样化和不断发展的应用需求和使用场景表明，未来的无线网络将是通过IP网络的公共平台整合上述接入网络形成的异质网络。这项研究的目标是研究异类无线网络中的三个问题：路由、移动性管理和网络中间件。所有这些问题对未来的无线网络都至关重要。此外，我们有机会利用我们目前的研究和专业知识来处理与这些问题有关的紧迫问题。路由是一项基本的网络服务，由于移动性、功率限制、无线链路不稳定和路径干扰等一系列挑战，使得无线网络变得复杂。智能天线和复杂的功率控制方法在提高链路吞吐量和减少多跳无线网络中由于持续通信造成的干扰而造成的路径阻塞方面带来了机会。然而，这也给路径控制和选择过程带来了复杂性。移动性管理是保证移动节点通信性能的关键。对于高速、异质的无线网络来说，这变得更加复杂。应用程序访问网络服务的传统方法是通过通信堆栈和套接字API。上述接入网络的异构性、移动性、无处不在和独特性对网络服务的接入和管理提出了新的挑战，而简单的传统机制已经不能提供这些挑战。网络中间件为复杂算法的实现提供了平台，为应用程序的开发和部署提供了便利。