Robust Smart Utility Network in Challenging Conditions

由IEEE 802.15.4g定义的智能计量公用事业网络（SUN）使智能电网中的控制和信息数据的无线传输能够用于包括智能计量的各种应用。Trilliant Networks（Canada）Inc.目前，在客户服务水平协议（SLA）要求、每平方公里智能电表设备密度等非常苛刻的条件下，以及在非常具有挑战性的环境中，如地下区域、高层建筑，智能仪表和数据采集节点使用无线网状拓扑互连，以扩大通信范围，并满足高达一万个单元的高密度设置每平方公里。这些设备使用IEEE 802.15.4g和多区域多速率正交频分复用（MR-OFDM），其中可以支持从50 kbps到800 kbps的多个数据速率。Trilliant Networks（Canada）Inc.将来也将使用频移键控（FSK）的新设备。与Trilliant Networks（Canada）Inc.合作，我们将进行系统的研究，以清楚地分析一种技术与另一种技术在典型部署中的行为。此外，为了提高这两种技术的性能，我们将开发一种noveltechnique的速率自适应，是非计算要求，是强大的对零星的损失，同时响应严重的信道变化，并考虑到网状拓扑的网络。该技术将很容易部署，而无需对现有的Trilliant网络（加拿大）公司进行昂贵的硬件重新设计。我们将把该技术集成到Trilliant Networks（Canada）Inc的测试台设备中，并进行现场测试以验证结果。该项目取得的进展将为Trilliant Networks（Canada）Inc.提供重要的竞争优势。并为智能电网的前沿技术做出贡献，为加拿大在该领域的全球领导地位提供机会。

A Smart metering utility network (SUN), as defined by IEEE 802.15.4g, enables the wireless transfer of controland information data in smart grids for diverse applications, including smart metering. Trilliant Networks(Canada) Inc. currently deploys smart metering solutions in very demanding conditions in terms of customerService Level Agreement (SLA) requirements, density of smart meter devices per square km, as well as in verychallenging environments such as underground areas, high rise buildings, etc. Smart meters and data collectionnodes are interconnected using a wireless mesh topology to expand communication range and cater to highdensity setups reaching up to ten thousand units per square kilometer. These devices use IEEE 802.15.4g withmulti-regional multiple-rate orthogonal frequency division multiplexing (MR-OFDM), where multiple datarates from 50kbps up to 800kbps can be supported. New devices using Frequency-shift keying (FSK) will alsobe used in future by Trilliant Networks (Canada) Inc. In collaboration with Trilliant Networks (Canada) Inc.,we will perform a systemic study to clearly analyze the behavior of one technology versus the other in typicaldeployments. Further, in order to enhance the performance of both used technologies, we will develop a noveltechnique for rate adaptation that is non-computationally demanding, is robust against sporadic losses whilebeing responsive to severe channel changes, and that takes into account the mesh topology of the network. Thetechnique will be readily deployable without a costly hardware redesign of existing Trilliant Networks(Canada) Inc. equipment, and is aimed to significantly enhance the performance of the smart meteringnetworks.We will integrate the technique into Trilliant Networks (Canada) Inc test bed equipment, and we will conductfield tests to validate the results. The advancements made in this project will provide an important competitiveedge for Trilliant Networks (Canada) Inc. and contribute to leading edge technology for smart grids, providingCanada with an opportunity for global leadership in the area.