大规模物联网中多层次立体异构网络拓扑研究

[摘要] 物联网中的多层次立体异构网络可以将机器所产生的数据局部收集至数据采集器并连接到基础设施网络和云端，为用户提供基于物联网的智慧信息服务。针对多层次异构网络的模型HetNet，给出了多层次立体异构网络模型 HetNet的时间延迟闭合式的一般情形。结果表明通过布置高效率数据采集器，信息可以从机器传输到云端，从而大幅降低平均延迟。这为下一代无线服务提供商的多层次异构物联网网络的设计提供了有力的支持。

[关键词] 物联网；多层次立体异构网络；数据采集器；时间延迟

[Abstract] In the machine-to-machine multilayer heterogeneous network, the data produced by a machine can be constellated to data aggregators and connected to the infrastructure network and cloud terminal. This can provide the intelligence information service based on the Internet of Things to the users. In this paper, our mathematical analysis provides general analytical closed-form end-to-end delay of HetNet, the model of multilayer heterogeneous network. The results show that by the arrangement of the high-efficiency data aggregator, the information can be sent from machine to cloud terminal and greatly reduce average delay. It also provides strong support for the design of multilayer heterogeneous network of wireless network service provider of next generation.

[Keywords] machine-to-machine; multi-layer heterogeneous network architecture; data aggregator; time delay