Acceso al sitio web del Consejo de Políticas de Infraestructura
REVISTA
Computers

   
Inicio  /  Computers  /  Vol: 10 Par: 4 (2021)  /  Artículo
ARTÍCULO
TITULO

LoRa Channel Characterization for Flexible and High Reliability Adaptive Data Rate in Multiple Gateways Networks

Ulysse Coutaud    
Martin Heusse and Bernard Tourancheau    

Resumen

We characterize the LoRa channel in terms of multi-path fading, loss burstiness, and assess the benefits of Forward Error Correction as well as the influence of frame length. We make these observations by synthesizing extensive experimental measurements realized with The Things Network in a medium size city. We then propose to optimize the LoRaWAN Adaptive Data Rate algorithm based on this refined LoRa channel characterization and taking into account the LoRaWAN inherent macro-diversity from multi-gateway reception. Firstly, we propose ??????opt ADR opt , which adjusts Spreading Factor and frame repetition number to maintain the communication below a target Packet Error Rate ceiling with optimized Time-On-Air. Secondly, we propose ??????IFECC ADR IFECC , an extension of ??????opt ADR opt in case an Inter-Frame Erasure Correction Code is available. The resulting protocol provides very high reliability even over low quality channels, with comparable Time on Air and similar downlink usage as the currently deployed mechanism. Simulations corroborate the analysis, both over a synthetic random wireless link and over replayed real-world packet transmission traces.

Palabras claves

PÁGINAS
pp. 0 - 0

 Artículos similares

       
 
Kai Sun, Ziyin Wu, Mingwei Wang, Jihong Shang, Zhihao Liu, Dineng Zhao and Xiaowen Luo    
Polymetallic nodules are spherical or ellipsoidal mineral aggregates formed naturally in deep-sea environments. They contain a variety of metallic elements and are important solid mineral resources on the seabed. How best to quickly and accurately identi... ver más

 
Sharoon Saleem, Fawad Hussain and Naveed Khan Baloch    
Network on Chip (NoC) has emerged as a potential substitute for the communication model in modern computer systems with extensive integration. Among the numerous design challenges, application mapping on the NoC system poses one of the most complex and d... ver más
Revista: Algorithms

 
Ivan S. Maksymov and Ganna Pogrebna    
We propose a quantum-mechanical model that represents a human system of beliefs as the quantised energy levels of a physical system. This model represents a novel perspective on opinion dynamics, recreating a broad range of experimental and real-world da... ver más
Revista: Information

 
Md Saiful Islam and Fei Liu    
In the realm of artificial intelligence, knowledge graphs have become an effective area of research. Relationships between entities are depicted through a structural framework in knowledge graphs. In this paper, we propose to build a domain-specific medi... ver más
Revista: Information

 
António Pedro Branco, Cátia Vaz and Alexandre P. Francisco    
There are several tools available to infer phylogenetic trees, which depict the evolutionary relationships among biological entities such as viral and bacterial strains in infectious outbreaks or cancerous cells in tumor progression trees. These tools re... ver más
Revista: Algorithms