TY - GEN
T1 - Design considerations for time-slotted lora(Wan)
AU - Zorbas, Dimitrios
N1 - Funding Information:
LoRa(WAN) time-slotted communications have been only superficially studied in the literature. None of the previously mentioned works presents a complete time-slotted solution including a registration mechanism, the computation of the schedule and its dissemination (if any), acknowledgments, as well as performance guarantees in terms of delay and packet delivery ratio. Moreover, the majority of the works have not been tested experimentally but are based on theoretical hypotheses and computer simulations. A radical and complete solution to allow long range time-slotted communications is still not available. 6 Conclusions LoRaWAN is a long distance IoT protocol designed for deployment simplicity and energy efficiency. However, due to its Aloha MAC, it is not suitable for applications that require very high reliability and guaranteed delay such as the Industrial IoT applications. Switching to a time-slotted MAC is not an easy task mainly due to the characteristics of the LoRa physical layer and the radio duty cycle regulations. In this paper, all those parameters and characteristics that need to be taken into account when designing such a LoRa(WAN)-based time-slotted approach are described. Moreover, a time-slotted frame structure is proposed based on the experience acquired by developing an experimental time-slotted LoRa platform. Acknowledgements This publication has emanated from research conducted with the financial support of Science Foundation Ireland (SFI) and is co-funded under the European Regional Develop- ment Fund under Grant Number 13/RC/2077 and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 713567.
Publisher Copyright:
© 2020 the authors.
PY - 2020
Y1 - 2020
N2 - One of the most common issues in wireless networks is the problem of increasing the network capacity by alleviating or eliminating collisions with the minimum possible cost. The combination of time division protocols together with efficient slot allocation mechanisms is an effective way to achieve scalability and provide high reliability. In this paper, I describe the parameters that must be taken into account when designing LoRa(WAN)-based time-slotted protocols. I show that the LoRaWAN case differs from any other synchronous wireless solution mainly due to the characteristics of the LoRa physical layer and the regional radio duty cycle restrictions. I also propose a frame structure which has been adopted during the implementation of a time-slotted LoRa approach.
AB - One of the most common issues in wireless networks is the problem of increasing the network capacity by alleviating or eliminating collisions with the minimum possible cost. The combination of time division protocols together with efficient slot allocation mechanisms is an effective way to achieve scalability and provide high reliability. In this paper, I describe the parameters that must be taken into account when designing LoRa(WAN)-based time-slotted protocols. I show that the LoRaWAN case differs from any other synchronous wireless solution mainly due to the characteristics of the LoRa physical layer and the regional radio duty cycle restrictions. I also propose a frame structure which has been adopted during the implementation of a time-slotted LoRa approach.
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M3 - Conference contribution
SN - 9780994988645
T3 - International Conference on Embedded Wireless Systems and Networks
SP - 271
EP - 276
BT - International Conference on Embedded Wireless Systems and Networks, EWSN 2020
A2 - Julien, Christine
A2 - Valois, Fabrice
PB - Junction Publishing
T2 - International Conference on Embedded Wireless Systems and Networks, EWSN 2020
Y2 - 17 February 2020 through 19 February 2020
ER -