Interference management in multi-tier heterogeneous wireless networks

随着移动社交网络、无线多媒体和物联网等新的高带宽应用的普及，最新一代无线服务基础设施已经面临着严重的资源短缺，难以满足爆炸性的服务需求。作为回应，系统设计者和网络运营商推动了异质多层无线网络范例，其中较小的自治小区和中继器与传统的宏蜂窝同时部署。在设计和部署多层重叠基站和中继站方面存在许多挑战，特别是在日益流行的沉浸式和交互式多媒体应用对数据速率和信号干扰比提出严格要求的情况下。特别是，无线电干扰预计将成为下一代异质无线系统中理想的覆盖和容量的关键障碍。需要创新的干扰管理技术来对抗由多层环境中不同的、自主的和动态的发射机集产生的极其复杂的无线电活动模式。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存在，我们将与爱立信合作，研究下一代多层异质无线网络中干扰管理的理论和实践设计。尽管未来系统中存在复杂的异构性，但智能干扰抑制和缓解方案将允许有效利用有限的无线电资源，并为最终用户提供最佳的服务体验。我们将就如何设计和运营未来的异类无线系统制定实用的指导方针，以最佳地平衡服务性能和网络成本之间的平衡。这项研究的结果有望通过促进工程理论、技术方法和标准化政策来促进系统改进、成本降低、可持续增长和长期竞争力，从而使我们的行业合作伙伴和整个加拿大信息和通信行业受益。

With the emerging prevalence of new bandwidth-hungry applications, such as mobile social networking, wireless multimedia, and Internet of Things, the latest-generation wireless service infrastructure is already facing severe resource shortage in its struggle to satisfy the exploding service demands. In response, a heterogeneous multi-tier wireless networking paradigm, where smaller and autonomous cells and relays are deployed concurrently with the traditional macro cells, have been promoted by system designers and network operators. There are many challenges in the design and deployment of multiple tiers of overlapping base stations and relays, especially under the stringent data-rate and signal-to-interference requirements imposed by ever popular immersive and interactive multimedia applications. In particular, radio interference is expected to be a key barrier to desirable coverage and capacity in the next-generation heterogeneous wireless systems. Innovative interference management techniques are needed to counter the extremely complex radio activity patterns generated by the diverse, autonomous, and dynamic set of transmitters in the multi-tier environment. 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 into the theories and practical designs for interference management in next-generation multi-tier heterogeneous wireless networks. Intelligent interference suppression and mitigation schemes will allow efficient utilization of the limited radio resources despite the complex heterogeneity in future systems and provide optimal service experience to the end users. We will generate practical guidelines on how to design and operate future heterogeneous wireless systems, to optimally balance the tradeoff between service performance and networking cost. The outcomes of this 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.