Cross-layer design and optimization for next generation wireless networks

无线通信的最新进展表明，无线网络中各层之间的交互作用非常重要，而无线网络的固有特性决定了跨层设计的必要性。虽然已经针对无线网络中的跨层设计做了一些工作，但是大多数先前的工作集中于单个空中接口标准，诸如蜂窝网络。然而，在下一代无线网络中，无线设备配备有用于不同空中接口标准的多个无线收发器，以满足对广域、局域和个人区域无线网络的不同需求。此外，对用于下一代无线网络的认知无线电的兴趣激增，其中无线设备可以感知其环境并适应具有多个传输协议的许多频带。在此框架中，需要考虑不同空中接口标准中不同层的交互以开发优化集成无线网络的性能的高效且有效的算法，这提出了重大的技术挑战。本研究提案的目标是在此框架的基础上解决重要的研究问题。我们的长期目标是研究具有认知智能的无线网络，通过空中接口共同跨越物理层、数据链路层、网络层、传输层和应用层。这项工作的研究方法将采用数学建模和分析技术来评估新方案的有效性。我们还将通过实验性的实施和评估来确定我们的计划的实用性。拟议的工作将有助于通过下一代及以后的无线网络技术的进步。这项工作产生的一些技术和技巧可能会影响新兴技术标准的发展或导致新技术标准的制定。有些结果可能适合商业化。拟议的研究还将有助于培训信息技术、通信和无线网络领域的高素质人员。

Recent advances in wireless communications show that the interactions of different layers play an important role in wireless networks, and cross-layer design is necessary due to the intrinsic characteristics of wireless networks. Although some work has been done for cross-layer design in wireless networks, most of previous work concentrates on a single air interface standard such as a cellular network. However, in next generation wireless networks, wireless devices are equipped with multiple wireless transceivers for different air interface standards to satisfy the different needs for wide area, local area and personal area wireless networks. Moreover, there has been an explosion of interest in cognitive radio for next generation wireless networks, in which wireless devices can sense their environment and adapt to many frequency bands with multiple transmission protocols. In this framework, the need to consider the interactions of different layers in different air interface standards to develop efficient and effective algorithms that optimize the performance of the integrated wireless networks presents significant technical challenges. The objectives of this research proposal are to address important research problems based on this framework. Our long-term goal involves the study of wireless networks with cognitive intelligence over the air interface jointly across physical, data-link, network, transport and application layers. The research methodology of the work will employ mathematical modeling and analysis techniques to evaluate the effectiveness of the novel schemes. We will also ascertain the practicality of our schemes by pursuing experimental implementations and evaluations. The proposed work will contribute to the advancement of wireless networking technologies through the next generation and beyond. Some of the technologies and techniques resulting from the work may impact the evolution of emerging technical standards or lead to the development of new technical standards. Some results may be suitable for commercialization. The proposed research will also contribute to the training of highly qualified personnel in the information technology, communications and wireless networks fields.