Multi-tier wireless networking with massive MIMO**

随着5G无线标准化计划在2020年到来，以及向下一代演进的初步概念的进一步出现，我们见证了无线服务和应用的巨大发展。物联网、增强现实、移动多媒体、移动云计算和移动数据分析等新技术和应用环境正在创造新的服务需求，这些需求强调了当前无线基础设施的容量。为了提高服务容量和提高无线频谱效率，多层接入和大规模MIMO策略在新型无线系统设计中被广泛认为是至关重要的。它们都为网络运营商提高服务质量、增加业务灵活性、降低运营成本带来了新的机遇。爱立信是世界上最大的电信创新者之一，在加拿大拥有强大的研究和业务，我们将与爱立信合作，研究大规模MIMO系统的多层无线网络的理论和实际设计。低复杂度但有效的资源管理和传输调度方案将允许有效利用有限的无线电资源，尽管未来系统中存在复杂的异构性，并将为最终用户提供最佳的服务体验。通过数学分析、计算机模拟和系统实验，我们将生成关于如何设计和操作下一代无线系统的实用指南，以最佳地平衡服务性能和网络成本之间的权衡。因此，拟议研究的结果预计将有利于我们的行业合作伙伴和加拿大信息和通信行业，通过促进工程理论，技术方法和标准化政策，可以导致系统改进，成本降低，可持续增长和长期竞争力。******

With the planned arrival of 5G wireless standardization in year 2020 and further emergence of initial concepts for its evolution toward the next generation, we have witnessed drastic development in wireless services and applications. New technologies and application environments, such as the Internet of Things, augmented reality, mobile multimedia, mobile cloud computing, and mobile data analytics, are creating service demands that stress the capacity of current wireless infrastructure. With a goal of increasing service capacity and increasing wireless spectral efficiency, two strategies that are widely regarded as being critically important in the design of new wireless systems are multi-tier access and massive MIMO. They both bring new opportunities for network operators to improve service quality, increase service flexibility, and reduce operation cost. In collaboration with Ericsson, one of the largest telecommunication innovators in the world with a strong research and business presence in Canada, we will investigate the theories and practical designs of multi-tier wireless networking with massive MIMO systems. Low-complexity but effective resource management and transmission scheduling schemes will allow efficient utilization of the limited radio resources despite the complex heterogeneity in future systems and will provide optimal service experience to the end users. Through mathematical analysis, computer simulation, and system experimentation, we will generate practical guidelines on how to design and operate future-generation wireless systems to optimally balance the tradeoff between service performance and networking cost. Thus, the outcomes of the proposed research are expected to benefit both our industry partner and the Canadian information and communication industry at large, by promoting engineering theory, technical methods, and standardization policies that can lead to system improvement, cost reduction, sustainable growth, and long-term competitiveness.******