ICT Lab, Instituto Nacional de Telecomunicações-Inatel, Av. João de Camargo 510, Centro, CEP 37540-000 Santa Rita do Sapucaí, Minas Gerais, Brazil.
Lab WOCA, Instituto Nacional de Telecomunicações-Inatel, Av. João de Camargo 510, Centro, CEP 37540-000 Santa Rita do Sapucaí, Minas Gerais, Brazil.
Sensors (Basel). 2018 Sep 19;18(9):3160. doi: 10.3390/s18093160.
We integrate, for the first time in the literature, the following ingredients to deal with emerging dynamic spectrum management (DSM) problem in heterogeneous wireless sensors and actuators networks (WSANs), Internet of things (IoT) and Wi-Fi: (i) named-based routing to provide provenance and location-independent access to control plane; (ii) temporary storage of control data for efficient and cohesive control dissemination, as well as asynchronous communication between software-controllers and devices; (iii) contract-based control to improve trust-ability of actions; (iv) service-defined configuration of wireless devices, approximating their configurations to real services needs. The work is implemented using NovaGenesis architecture and a proof-of-concept is evaluated in a real scenario, demonstrating our approach to automate radio frequency channel optimization in Wi-Fi and IEEE 802.15.4 networks in the 2.4 GHz bands. An integrated cognitive radio system provides the dual-mode best channel indications for novel DSM services in NovaGenesis. By reconfiguring Wi-Fi/IoT devices to best channels, the proposed solution more than doubles the network throughput, when compared to the case of mutual interference. Therefore, environments equipped with the proposal provide enhanced performance to their users.
我们首次整合了以下成分,以应对异构无线传感器和执行器网络(WSAN)、物联网(IoT)和 Wi-Fi 中新兴的动态频谱管理(DSM)问题:(i)基于名称的路由,为控制平面提供来源和位置独立的访问;(ii)控制数据的临时存储,以实现高效和连贯的控制分发,以及软件控制器和设备之间的异步通信;(iii)基于合同的控制,以提高行动的可信度;(iv)无线设备的服务定义配置,使它们的配置接近实际服务需求。这项工作是使用 NovaGenesis 架构实现的,并在真实场景中进行了概念验证,展示了我们在 2.4GHz 频段的 Wi-Fi 和 IEEE 802.15.4 网络中自动化射频信道优化的方法。一个集成的认知无线电系统为 NovaGenesis 中的新型 DSM 服务提供了双模最佳信道指示。通过将 Wi-Fi/IoT 设备重新配置到最佳信道,与相互干扰的情况相比,所提出的解决方案使网络吞吐量增加了一倍以上。因此,配备该方案的环境为其用户提供了增强的性能。