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Mitigating Inter-network Interference in LoRa Networks
RISE - Research Institutes of Sweden, ICT, SICS. Uppsala University, Sweden. (Computer Systems Laboratory)ORCID-id: 0000-0002-2586-8573
Lancaster University, UK.
Lancaster University, UK.
2017 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Long Range (LoRa) is a popular technology used to constructLow-Power Wide-Area Networks (LPWAN). Giventhe popularity of LoRa it is likely that multiple independentLoRa networks are deployed in close proximity. In this situation,neighbouring networks interfere and methods have tobe found to combat this interference. In this paper we investigatethe use of directional antennae and the use of multiplebase stations as methods of dealing with inter-network interference.Directional antennae increase signal strength atreceivers without increasing transmission energy cost. Thus,the probability of successfully decoding the message in aninterference situation is improved. Multiple base stationscan alternatively be used to improve the probability of receivinga message in a noisy environment. We compare theeffectiveness of these two approaches via simulation. Ourfindings show that both methods are able to improve LoRanetwork performance in interference settings. However, theresults show that the use of multiple base stations clearly outperformsthe use of directional antennae. For example, in asetting where data is collected from 600 nodes which are interferedby four networks with 600 nodes each, using threebase stations improves the Data Extraction Rate (DER) from0.24 to 0.56 while the use of directional antennae providesan increase to only 0.32.

sted, utgiver, år, opplag, sider
2017.
Emneord [en]
LoRa, Low-Power Wide-Area Network, Interference
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-32981OAI: oai:DiVA.org:ri-32981DiVA, id: diva2:1170466
Konferanse
MadCom: New Wireless Communication Paradigms for the Internet of Things, Uppsala, Sweden
Tilgjengelig fra: 2018-01-03 Laget: 2018-01-03 Sist oppdatert: 2018-07-04bibliografisk kontrollert

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