Medium access control protocols for millimeter wave cognitive networks with directional antennas

尽管研究人员正在努力开发高效的无线技术，但无线网络最终总是面临超出其能力的容量需求。随着容量需求的预期数量级增长，以及机器对机器（M2M）通信的增加，这一趋势将继续下去。为了满足不断增长的无线接入需求，研究人员考虑了几种关键技术。在此背景下，本研究计划特别考虑通过开发和分析未来毫米波无线网络的介质访问控制（MAC）技术来优化整体网络效率，其中定向天线用于减轻传播损耗。巨大的毫米波频谱可以使数据速率提高数倍，并有效地部署连续无线网络。此外，毫米波网络具有许多特性，这使得使用带有认知无线电的动态频谱接入（DSA）的操作成为一种有前途的方法，可以根据需要有效地部署异构网络以共享这一巨大的频谱。因此，本研究计划的总体目标是提供和分析MAC技术，以使多个设备集群在不同的无线通信网络中，每个设备具有不同的服务质量要求和能力，以有效地共享广泛的毫米波频谱。更具体地说，将开发考虑使用定向天线的传感技术，设计适应毫米波通信现实的异构网络动态频谱分配算法，并提出和分析具有定向天线设备的异构多波段毫米波认知无线电网络的MAC协议，并更好地与行业采用的网络架构兼容。优化工具、启发式算法和仿真工具将在这项工作中使用，以实现这些目标。***目前毫米波无线网络的MAC协议通常是针对微波频率开发的协议的直接改编，并且没有考虑到广大毫米波频谱的特殊性。因此，预计拟议的研究项目将为不断发展的毫米无线网络领域做出重大研究贡献，预计毫米无线网络将成为未来提供额外无线容量的主要方法。这些结果将引起无线服务提供商、设备制造商、标准化组织和研究团体的兴趣。因此，它应该有助于在未来的高速无线网络中成功集成认知毫米波无线电和定向天线技术

Despite ongoing research efforts to develop efficient wireless techniques, wireless networks always eventually face capacity demands exceeding their capabilities. This trend will continue with orders of magnitude expected growth in capacity demands and also an important shift with increasing machine-to-machine (M2M) communications. To properly serve the continuing demands for wireless access, several key technologies are considered by the research community. In this context, this research program specifically contemplates optimizing overall network efficiency with the development and analysis of medium access control (MAC) techniques for future millimeter wave wireless networks where directional antennas are used to mitigate the propagation loss. The vast millimeter wave spectrum then enables multi-fold data rate increase and the efficient deployment of contiguous wireless networks. Furthermore, millimeter wave networks have a number of properties that make operations using dynamic spectrum access (DSA) with cognitive radios a promising approach to efficiently deploy on a per need basis heterogeneous networks to share this vast spectrum.***The general objective of this research program is thus to provide and analyze MAC techniques to enable multiple devices clustered in different wireless communication networks, each with various quality of service requirements and capabilities, to efficiently share the broad millimeter wave spectrum. More specifically, sensing techniques considering the use of directional antennas will be developed, dynamic spectrum allocation algorithms for heterogeneous networks and adapted to the reality of millimeter wave communications will be devised, and MAC protocols for heterogeneous multi-band millimeter wave cognitive radios networks with devices equipped with directional antennas, and preferably compatible with network architectures adopted by the industry, will be proposed and analyzed. Optimization tools, heuristics algorithms, and simulation tools will be used in this work to achieve those objectives.***Current MAC protocols for millimeter wave wireless networks are generally straightforward adaptations of protocols developed for microwave frequencies and have not been designed taking into account the particularities of the vast millimeter wave spectrum. It is therefore expected that the proposed research project will yield significant research contributions to the growing field of millimeter wireless networks, foreseen as the main approach to provide additional wireless capacity in the future. Those results will be of interest to wireless service providers, equipment manufacturers, standardization organizations and the research community. As such, it should contribute to the successful integration of cognitive millimeter wave radios and directional antenna techniques in future high-speed wireless networks.**