TY  - RPRT
A1  - Loh, Frank
A1  - Geißler, Stefan
A1  - Hoßfeld, Tobias
T1  - LoRaWAN Network Planning in Smart Environments: Towards Reliability, Scalability, and Cost Reduction
T2  - Würzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)
N2  - The goal in this work is to present a guidance for LoRaWAN planning to improve overall reliability for message transmissions and scalability. At the end, the cost component is discussed. Therefore, a five step approach is presented that helps to plan a LoRaWAN deployment step by step: Based on the device locations, an initial gateway placement is suggested followed by in-depth frequency and channel access planning. After an initial planning phase, updates for channel access and the initial gateway planning is suggested that should also be done periodically during network operation. Since current gateway placement approaches are only studied with random channel access, there is a lot of potential in the cell planning phase. Furthermore, the performance of different channel access approaches is highly related on network load, and thus cell size and sensor density. Last, the influence of different cell planning ideas on expected costs are discussed.
KW  - Datennetz
KW  - LoRaWan
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-280829
ER  - 
TY  - RPRT
A1  - Nguyen, Kien
A1  - Loh, Frank
A1  - Hoßfeld, Tobias
T1  - Challenges of Serverless Deployment in Edge-MEC-Cloud
T2  - KuVS Fachgespräch - Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS’23)
N2  - The emerging serverless computing may meet Edge Cloud in a beneficial manner as the two offer flexibility and dynamicity in optimizing finite hardware resources. However, the lack of proper study of a joint platform leaves a gap in literature about consumption and performance of such integration. To this end, this paper identifies the key questions and proposes a methodology to answer them.
KW  - Edge-MEC-Cloud
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-322025
ER  - 
TY  - RPRT
A1  - Loh, Frank
A1  - Raffeck, Simon
A1  - Geißler, Stefan
A1  - Hoßfeld, Tobias
T1  - Paving the Way for an Energy Efficient and Sustainable Future Internet of Things
T2  - KuVS Fachgespräch - Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS’23)
N2  - In this work, we describe the network from data collection to data processing and storage as a system based on different layers. We outline the different layers and highlight major tasks and dependencies with regard to energy consumption and energy efficiency. With this view, we can outwork challenges and questions a future system architect must answer to provide a more sustainable, green, resource friendly, and energy efficient application or system. Therefore, all system layers must be considered individually but also altogether for future IoT solutions. This requires, in particular, novel sustainability metrics in addition to current Quality of Service and Quality of Experience metrics to provide a high power, user satisfying, and sustainable network.
KW  - Internet of Things
KW  - energy efficiency
KW  - sustainability
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-322161
ER  -