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Challenge: Unlicensed LPWANs Are Not Yet the Path to Ubiquitous Connectivity

Authors:

Longfei Shangguan,

Prabal DuttaAuthors Info & Claims

MobiCom '19: The 25th Annual International Conference on Mobile Computing and Networking

Article No.: 43, Pages 1 - 12

https://doi.org/10.1145/3300061.3345444

Published: 11 October 2019 Publication History

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Abstract

Low-power wide-area networks (LPWANs) are a compelling answer to the networking challenges faced by many Internet of Things devices. Their combination of low power, long range, and deployment ease has motivated a flurry of research, including exciting results on backscatter and interference cancellation that further lower power budgets and increase capacity. But despite the interest, we argue that unlicensed LPWAN technologies can only serve a narrow class of Internet of Things applications due to two principal challenges: capacity and coexistence. We propose a metric, bit flux, to describe networks and applications in terms of throughput over a coverage area. Using bit flux, we find that the combination of low bit rate and long range restricts the use case of LPWANs to sparse sensing applications. Furthermore, this lack of capacity leads networks to use as much available bandwidth as possible, and a lack of coexistence mechanisms causes poor performance in the presence of multiple, independently-administered networks. We discuss a variety of techniques and approaches that could be used to address these two challenges and enable LPWANs to achieve the promise of ubiquitous connectivity.

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Cited By

Shahid MKrishnaswamy B(2024)BYOG : Multi-Channel, Real-time LoRaWAN Gateway Testbed using General-purpose Software Defined RadioProceedings of the ACM on Networking10.1145/36562992:CoNEXT2(1-17)Online publication date: 13-Jun-2024
https://dl.acm.org/doi/10.1145/3656299
Li CRen YTong SSiam SZhang MWang JLiu YCao ZOkoshi TKo JLiKamWa R(2024)ChirpTransformer: Versatile LoRa Encoding for Low-power Wide-area IoTProceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services10.1145/3643832.3661861(479-491)Online publication date: 3-Jun-2024
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Guo YNiu JZhou XGu TLi YFang D(2024)Power-Efficient Transmissions in LoRa Uplink SystemsIEEE Transactions on Vehicular Technology10.1109/TVT.2024.3371157(1-13)Online publication date: 2024
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Index Terms

Challenge: Unlicensed LPWANs Are Not Yet the Path to Ubiquitous Connectivity
1. Networks
  1. Network performance evaluation
  2. Network types
    1. Wireless access networks

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cover image ACM Conferences

MobiCom '19: The 25th Annual International Conference on Mobile Computing and Networking

August 2019

1017 pages

ISBN:9781450361699

DOI:10.1145/3300061

General Chairs:
Sharad Agarwal
Microsoft
,
Ben Greenstein
Google
,
Aruna Balasubramanian
Stony Brook University
,
Program Chairs:
Shyam Gollakota
University of Washington
,
Xinyu Zhang
University of California, San Diego

Copyright © 2019 Owner/Author.

This work is licensed under a Creative Commons Attribution International 4.0 License.

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SIGMOBILE: ACM Special Interest Group on Mobility of Systems, Users, Data and Computing

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Published: 11 October 2019

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MobiCom '19: The 25th Annual International Conference on Mobile Computing and Networking

October 21 - 25, 2019

Los Cabos, Mexico

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Cited By

Shahid MKrishnaswamy B(2024)BYOG : Multi-Channel, Real-time LoRaWAN Gateway Testbed using General-purpose Software Defined RadioProceedings of the ACM on Networking10.1145/36562992:CoNEXT2(1-17)Online publication date: 13-Jun-2024
https://dl.acm.org/doi/10.1145/3656299
Li CRen YTong SSiam SZhang MWang JLiu YCao ZOkoshi TKo JLiKamWa R(2024)ChirpTransformer: Versatile LoRa Encoding for Low-power Wide-area IoTProceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services10.1145/3643832.3661861(479-491)Online publication date: 3-Jun-2024
https://dl.acm.org/doi/10.1145/3643832.3661861
Guo YNiu JZhou XGu TLi YFang D(2024)Power-Efficient Transmissions in LoRa Uplink SystemsIEEE Transactions on Vehicular Technology10.1109/TVT.2024.3371157(1-13)Online publication date: 2024
https://doi.org/10.1109/TVT.2024.3371157
Shao CMuta OTsukamoto KLee WWang XNkomo MDandekar K(2024)Toward Improved Energy Fairness in CSMA-Based LoRaWANIEEE/ACM Transactions on Networking10.1109/TNET.2024.341891332:5(4382-4397)Online publication date: Oct-2024
https://doi.org/10.1109/TNET.2024.3418913
Wang JTong SXu ZXie P(2024)Real-Time Concurrent LoRa Transmissions Based on Peak TrackingIEEE Transactions on Mobile Computing10.1109/TMC.2024.336579723:10(9582-9594)Online publication date: Oct-2024
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Watson JDespres TTan APatil SDutta PPopa R(2024)Nebula: A Privacy-First Platform for Data Backhaul2024 IEEE Symposium on Security and Privacy (SP)10.1109/SP54263.2024.00092(3184-3202)Online publication date: 19-May-2024
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Shao CMuta ODu QDandekar KWang X(2024)Multiple Access in Large-Scale LoRaWAN: Challenges, Solutions, and Future PerspectivesIEEE Consumer Electronics Magazine10.1109/MCE.2022.318251813:5(36-46)Online publication date: Sep-2024
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Yu FZheng XLiu LMa HCosta XHassanieh HAsadi ACox LPerino DWidmer JGiustiniano D(2023)Enabling Concurrency for Non-orthogonal LoRa ChannelsProceedings of the 29th Annual International Conference on Mobile Computing and Networking10.1145/3570361.3613268(1-15)Online publication date: 2-Oct-2023
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Xia XHou NZheng YGu T(2023)PCube: Scaling LoRa Concurrent Transmissions with Reception DiversitiesACM Transactions on Sensor Networks10.1145/354557118:4(1-25)Online publication date: 7-Mar-2023
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