The HetHetNets Framework for 5G+ Wireless Networks: Highly Heterogeneous Traffic, Unprecedented Congestion, and Novel Solutions

5G 无线网络 HetHetNets 框架：高度异构的流量、前所未有的拥塞和新颖的解决方案

• 批准号: RGPIN-2016-06275
• 负责人: Yanikomeroglu, Halim
• 金额: $ 3.93万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=708939
• 关键词: HetHetNets; Framework; 5G+; Wireless; Networks

Since the development of 4G LTE standards around 2010, the research communities both in academia and industry have been brainstorming to predict the use cases and scenarios around 2020, to determine the corresponding technical requirements, and to develop the enabling technologies, protocols, and network architectures towards the next-generation (5G) wireless standardization. This exploratory phase is winding down as the 5G standardization phase approaches. The first wave of 5G standards are expected to be developed during the 2017-18 timeframe, to be approved by ITU during the 2019-2020 timeframe, and to become operational in the early 2020s. As such, it is time to reinitiate a similar brainstorming endeavour towards the beyond-5G wireless networks; we refer to such networks as 5G+ in order to include the evolution of the 5G standards in 2020s and to perform the groundwork for those to be developed towards 2030. The proposed research program is geared towards the fundamental problem of the supply-demand mismatch in 5G+ wireless networks. This problem has different significance based on the context and discipline. In the wireless context, the supply is the potential rate that the access network can provide and the demand is the traffic generated by the users and devices. If the total demand in space and time is less than the total potential supply, this results in an obvious shortage. In this case, there is little that can be done, except for either reducing the demand or increasing the supply, or both. A more interesting and relevant case occurs when the network experiences shortage (congestion) despite the total potential supply (in space and time) exceeds the total demand (in space and time). This situation manifests itself when there is a mismatch; i.e., when the demand does not arise where the supply is. In order to analyze the severity of the mismatch problem, it should be checked whether the supply can be storable (in time) or transportable/transferable (in space) in an efficient manner. If the answer is yes to these questions, then the mismatch problem can easily be alleviated. On the other hand, a negative answer signals a difficult problem. In wireless networks, the supply-demand mismatch constitutes a highly critical and serious situation due to the fact that, in general, the supply can neither be stored nor transported. Within the very broad 5G+ paradigm, the objective of the proposed research program is two-fold: Theme I: Developing models to capture the highly heterogeneous traffic scenarios of the future. Theme II: Developing novel and possibly disruptive solutions to alleviate the impact of the resulting unprecedented congestion scenarios in HetHetNets. The proposed research program will contribute to Canada's remaining as an important and competent player in the global ICT area with the creation of the necessary knowledge base and the training of highly-qualified personnel.

自2010年前后制定4G LTE标准以来，学术界和工业界的研究团体一直在集思广益，预测2020年左右的用例和场景，确定相应的技术要求，并开发面向下一代（5G）无线标准化的使能技术、协议和网络架构。 随着 5G 标准化阶段的临近，这一探索阶段即将结束。第一波 5G 标准预计将在 2017-18 年期间制定，并在 2019-2020 年期间获得国际电联批准，并在 2020 年代初投入运营。因此，现在是时候重新启动针对超 5G 无线网络的类似集思广益努力了；我们将此类网络称为 5G+，以便将 2020 年代 5G 标准的演变纳入其中，并为 2030 年制定的标准奠定基础。 拟议的研究计划旨在解决5G+无线网络供需不匹配的根本问题。根据背景和学科的不同，这个问题具有不同的意义。在无线环境中，供应是接入网络可以提供的潜在速率，需求是用户和设备生成的流量。 如果空间和时间上的总需求小于总潜在供给，就会导致明显的短缺。在这种情况下，除了减少需求或增加供应或两者兼而有之之外，几乎无能为力。当网络经历短缺（拥塞）时，尽管总潜在供应（在空间和时间上）超过总需求（在空间和时间上），会出现一个更有趣且相关的情况。当不匹配时，这种情况就会显现出来；即，当供应所在的地方没有出现需求时。为了分析失配问题的严重性，应该检查供应是否可以有效地存储（及时）或可运输/转移（空间）。如果这些问题的答案是肯定的，那么失配问题就很容易得到缓解。另一方面，否定的答案则表明问题很困难。在无线网络中，供应与需求的不匹配构成了非常关键和严重的情况，因为通常供应既不能被存储也不能被运输。 在非常广泛的 5G+ 范式中，拟议研究计划的目标有两个： 主题一：开发模型来捕捉未来高度异构的交通场景。 主题二：开发新颖且可能具有颠覆性的解决方案，以减轻 HetHetNets 中由此产生的前所未有的拥塞情况的影响。 拟议的研究计划将通过建立必要的知识库和培训高素质人员，帮助加拿大继续成为全球信息通信技术领域的重要和有能力的参与者。