A survey on the viability of confirmed traffic in a LoRaWAN

dc.contributor.authorMarais, Jaco Morne
dc.contributor.authorAbu-Mahfouz, Adnan Mohammed
dc.contributor.authorHancke, Gerhard P.
dc.contributor.emailu11024063@tuks.co.zaen_ZA
dc.date.accessioned2020-06-03T13:11:14Z
dc.date.available2020-06-03T13:11:14Z
dc.date.issued2020-01-16
dc.description.abstractInternet of Things (IoT) deployments are on the rise globally with Low Power Wide Area Networks (LPWAN) providing the wireless networks needed for this expansion. One of these technologies namely Long Range Wide Area Network (LoRaWAN) has proven to be a very popular choice. The LoRaWAN protocol allows for confirmed traffic from the end device to the gateway (uplink) and the reverse (downlink), increasing the number of IoT use cases that it can support. However, this comes at a cost as downlink traffic severely impacts scalability due to in part a gateway's duty cycle restrictions. This paper highlights some of the use cases that require confirmed traffic, examines the recent works focused on LoRaWAN confirmed traffic and discusses the mechanism with which is implemented. It was found that confirmed traffic is viable in small networks, especially when data transfer is infrequent. Additionally, the following aspects negatively impact the viability of confirmed traffic in large networks: the duty cycle restrictions placed on gateways, the use of spreading factor 12 for receive window 2 transmissions, a high maximum number of transmissions (NbTrans) and the ACK_TIMEOUT transmission backoff interval. The paper also raises and suggests solutions to open research challenges that must be overcome to increase the viability of confirmed traffic.en_ZA
dc.description.departmentElectrical, Electronic and Computer Engineeringen_ZA
dc.description.librarianam2020en_ZA
dc.description.sponsorshipThe Council for Scientific and Industrial Research of South Africa and Telkom.en_ZA
dc.description.urihttp://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639en_ZA
dc.identifier.citationMarais, J.M., Abu-Mahfouz, A.M. & Hancke, G.P. 2020, 'A survey on the viability of confirmed traffic in a LoRaWAN', IEEE Access, vol. 8, pp. 9296-9311.en_ZA
dc.identifier.issn2169-3536 (online)
dc.identifier.other10.1109/ACCESS.2020.2964909
dc.identifier.urihttp://hdl.handle.net/2263/74855
dc.language.isoenen_ZA
dc.publisherInstitute of Electrical and Electronics Engineersen_ZA
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 Licenseen_ZA
dc.subjectInternet of things (IoT)en_ZA
dc.subjectLow power wide area network (LPWAN)en_ZA
dc.subjectWireless networksen_ZA
dc.subjectLong range wide area network (LoRaWAN)en_ZA
dc.titleA survey on the viability of confirmed traffic in a LoRaWANen_ZA
dc.typeArticleen_ZA

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