Overview and Measurement of Mobility in DASH7

Ayoub, Wael; Nouvel, Fabienne; Samhat, Abed Ellatif; Prévotet, Jean-Christophe; Mroué, Mohamad

doi:10.1109/ict.2018.8464846

Cited by 11 publications

(7 citation statements)

References 3 publications

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“…En relación al protocolo Dash7, su punto débil principal es su bajo alcance frente a otros protocolos. El alcance entre nodo y gateway es de 1 km, y puede extenderse hasta 2 km con el uso de un subcontrolador [9].…”

Section: Selección Del Protocolo De Comunicaciónunclassified

Sistema de comunicación de respaldo mediante tecnología LoRa con hardware y software abierto para aplicaciones de robótica de emergencias

Balmaceda¹,

Arrabal²,

Vázquez-Martín³

et al. 2021

Xlii Jornadas De Automática : Libro De Actas

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Los sistemas de comunicación entre nodos sensores y los equipos de búsqueda y rescate presentan posibles vulnerabilidades ante emergencias o catástrofes, como el fallo de la infraestructura del sistema o la saturación de la red. Por ello, es necesario evaluar alternativas para garantizar la disponibilidad del sistema y los datos necesarios para la estrategia del equipo. Los requerimientos de una red de largo alcance y bajo consumo apuntan a evaluar las distintas tecnologías que engloban las redes LPWAN (Low Power, Wide Area Network). Entre ellas, destaca el protocolo LoRaWAN (Long Range, Wide Area Network) por ofrecer una flexibilidad operativa que no tienen los demás. De lado del hardware, se realizó una selección de componentes abiertos para los nodos sensores y el gateway. Para conseguir una red ad-hoc se ha usado el proyecto ChirpStack como servidor de red y de aplicación. Finalmente, se ha integrado el software de aplicación QGIS con la base de datos PostgreSQL que almacena los datos en la misma tarjeta host del gateway. El sistema fue probado en las XV Jornadas Internacionales de la Universidad de Málaga sobre Seguridad, Emergencias y Catástrofes. El código y la documentación del sistema presentado en este artículo está disponible en https://github.com/jjflozano/BackUpCommLoRa.

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Section: Selección Del Protocolo De Comunicaciónunclassified

Sistema de comunicación de respaldo mediante tecnología LoRa con hardware y software abierto para aplicaciones de robótica de emergencias

Balmaceda¹,

Arrabal²,

Vázquez-Martín³

et al. 2021

Xlii Jornadas De Automática : Libro De Actas

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“…DASH7 supports star topologies with data rates of 13 kbps/16 channels, 50/8, and 166/4 [5]. Experiments show practical range of 900 m [17], which give DASH7 limited potential to patch coverage in rural scenarios. GoTenna adopts FSK and a proprietary Aspen Grove dissemination protocol to relay text messages and other low-rate data over multiple hops albeit with no guarantees on delay.…”

Section: Promise Of Infrastructure-less Networkmentioning

confidence: 99%

Beartooth Relay Protocol: Supporting Real-Time Application Streams over LoRa

Mekiker,

Wittie,

Jones

et al. 2020

Preprint

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The near-ubiquitous availability of wireless connectivity lets users take advantage of a large variety of mobile applications. This connectivity predominantly comes as cellular and WiFi, limiting users to available infrastructure. At the same time, commercial efforts for infrastructure-less connectivity do not support mobile application traffic. In this paper, we present a new LoRa radio and a relay protocol capable of supporting real-time application traffic on point-to-point and multihop connection. Our solution has the potential to extend mobile application functionality beyond infrastructure coverage areas.

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“…Messages from nodes to the sink are directly flooded. • D7AP networks consist of gateways and endpoints, and can optionally contain sub-controllers, thus also enabling tree topologies [10]. While gateways are permanently listening for packets, sub-controllers are allowed to sleep and are mainly used to relay packets.…”

Section: B Current Lpwan Technologiesmentioning

confidence: 99%

Towards Energy Efficient LPWANs through Learning-based Multi-hop Routing

Barrachina‐Muñoz

Adame

Bel

et al. 2019

2019 IEEE 5th World Forum on Internet of Things (WF-IoT)

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Low-power wide area networks (LPWANs) have been identified as one of the top emerging wireless technologies due to their autonomy and wide range of applications. Yet, the limited energy resources of battery-powered sensor nodes is a top constraint, especially in single-hop topologies, where nodes located far from the base station must conduct uplink (UL) communications in high power levels. On this point, multihop routings in the UL are starting to gain attention due to their capability of reducing energy consumption by enabling transmissions to closer hops. Nonetheless, a priori identifying energy efficient multi-hop routings is not trivial due to the unpredictable factors affecting the communication links in large LPWAN areas. In this paper, we propose epsilon multi-hop (EMH), a simple reinforcement learning (RL) algorithm based on epsilon-greedy to enable reliable and low consumption LPWAN multi-hop topologies. Results from a real testbed show that multi-hop topologies based on EMH achieve significant energy savings with respect to the default single-hop approach, which are accentuated as the network operation progresses.

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Overview and Measurement of Mobility in DASH7

Cited by 11 publications

References 3 publications

Sistema de comunicación de respaldo mediante tecnología LoRa con hardware y software abierto para aplicaciones de robótica de emergencias

Sistema de comunicación de respaldo mediante tecnología LoRa con hardware y software abierto para aplicaciones de robótica de emergencias

Beartooth Relay Protocol: Supporting Real-Time Application Streams over LoRa

Towards Energy Efficient LPWANs through Learning-based Multi-hop Routing

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