Managing your trees: Insights from a metropolitan-scale low-power wireless network

Abstract

such as IEEE 802.15.4, is envisioned as one key technology for wireless control and communication. In the context of the Advanced Metering Infrastructure (AMI), it serves as an energy-efficient communication technology for both communications at building-scale networks and city-scale networks. Understanding real-world challenges and key properties of 802.15.4 based networks is an essential requirement for both the research community and practitioners: When deploying and operating low-power wireless networks at metropolitan-scale, a deep knowledge is essential to ensure network availability and performance at production-level quality. Similarly, researchers require realistic network models when developing new algorithms and protocols.In this paper, we present new and real-world insights from a deployed metropolitan-scale low-power wireless network: It includes 300,000 individual wireless connected meters and covers a city with roughly 600,000 inhabitants. Our findings, for example, help to estimate real-world parameters such as the typical size of routing trees, their balance, and their dynamics over time. Moreover, these insights facilitate the understanding and the realistic calibration of simulation models in key properties such as reliability and throughput.

Optimum deployment of FiWi Networks using wireless sensors based on Universal Data Aggregation Points

“…De esta manera si consideramos lo antes señalado requerimos de un árbol de expansión multi-hop con el que se puede transportar la información punto multi punto (PMP) [6] [12] desde un concentrador UDAP a otro dependiendo de la cobertura que cada sub-radio disponga además de restringir el número de saltos máximo entre concentradores, pero con una sola finalidad de llegar hasta la radio base celular más cercana, la misma que se comportaría como enlace de última milla transportando la información hasta la oficina central, que en el caso de AMI sería una empresa de distribución eléctrica, mientras que para VANET a la empresa que genere las aplicaciones vehiculares. Con esta consideración advertimos la posibilidad de desplazar e intercambiar información entre redes domésticas (HAN) [13] [14], vecindarios (NAN) [15] [15], vehiculares (VANET) y metropolitanas (MAN) [7] [16]. Por lo tanto el objetivo es articular redes inalámbricas y redes ópticas FiWi que permitan aglutinar varios servicios a través de un punto de agregación de datos universal.…”