{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T00:39:00Z","timestamp":1780360740986,"version":"3.54.1"},"reference-count":31,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2020,8,5]],"date-time":"2020-08-05T00:00:00Z","timestamp":1596585600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003130","name":"Fonds Wetenschappelijk Onderzoek","doi-asserted-by":"publisher","award":["1S03821N"],"award-info":[{"award-number":["1S03821N"]}],"id":[{"id":"10.13039\/501100003130","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010661","name":"Horizon 2020","doi-asserted-by":"publisher","award":["769267"],"award-info":[{"award-number":["769267"]}],"id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.mdpi.com"],"crossmark-restriction":true},"short-container-title":["Sensors"],"abstract":"<jats:p>Recently, Semtech has released a Long Range (LoRa) chipset which operates at the globally available 2.4 GHz frequency band, on top of the existing sub-GHz, km-range offer, enabling hardware manufacturers to design region-independent chipsets. The SX1280 LoRa module promises an ultra-long communication range while withstanding heavy interference in this widely used band. In this paper, we first provide a mathematical description of the physical layer of LoRa in the 2.4 GHz band. Secondly, we investigate the maximum communication range of this technology in three different scenarios. Free space, indoor and urban path loss models are used to simulate the propagation of the 2.4 GHz LoRa modulated signal at different spreading factors and bandwidths. Additionally, we investigate the corresponding data rates. The results show a maximum range of 133 km in free space, 74 m in an indoor office-like environment and 443 m in an outdoor urban context. While a maximum data rate of 253.91 kbit\/s can be achieved, the data rate at the longest possible range in every scenario equals 0.595 kbit\/s. Due to the configurable bandwidth and lower data rates, LoRa outperforms other technologies in the 2.4 GHz band in terms of communication range. In addition, both communication and localization applications deployed in private LoRa networks can benefit from the increased bandwidth and localization accuracy of this system when compared to public sub-GHz networks.<\/jats:p>","DOI":"10.3390\/s20164366","type":"journal-article","created":{"date-parts":[[2020,8,5]],"date-time":"2020-08-05T15:13:18Z","timestamp":1596640398000},"page":"4366","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":67,"title":["LoRa 2.4 GHz Communication Link and Range"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4313-6744","authenticated-orcid":false,"given":"Thomas","family":"Janssen","sequence":"first","affiliation":[{"name":"IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6352-8943","authenticated-orcid":false,"given":"Noori","family":"BniLam","sequence":"additional","affiliation":[{"name":"IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0527-3871","authenticated-orcid":false,"given":"Michiel","family":"Aernouts","sequence":"additional","affiliation":[{"name":"IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0064-5020","authenticated-orcid":false,"given":"Rafael","family":"Berkvens","sequence":"additional","affiliation":[{"name":"IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1152-6617","authenticated-orcid":false,"given":"Maarten","family":"Weyn","sequence":"additional","affiliation":[{"name":"IDLab-Faculty of Applied Engineering, University of Antwerp-imec, Sint-Pietersvliet 7, 2000 Antwerp, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Sendra, S., Garc\u00eda, L., Lloret, J., Bosch, I., and Vega-Rodr\u00edguez, R. (2020). LoRaWAN Network for Fire Monitoring in Rural Environments. Electronics, 9.","DOI":"10.3390\/electronics9030531"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Mackey, A., and Spachos, P. (May, January 29). LoRa-based Localization System for Emergency Services in GPS-less Environments. Proceedings of the INFOCOM 2019\u2014IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), Paris, France.","DOI":"10.1109\/INFCOMW.2019.8845189"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"17179","DOI":"10.1109\/ACCESS.2020.2968057","article-title":"Low-Power Wide-Area Networks: Design Goals, Architecture, Suitability to Use Cases and Research Challenges","volume":"8","author":"Buurman","year":"2020","journal-title":"IEEE Access"},{"key":"ref_4","unstructured":"Cilfone, A., and Davoli, L. (2020). LoRaFarM: A LoRaWAN-Based Smart Farming Modular IoT Architecture. Sensors."},{"key":"ref_5","unstructured":"Semtech (2020, May 26). Semtech SX128x Long Range Datasheet. Available online: https:\/\/semtech.my.salesforce.com\/sfc\/p\/#E0000000JelG\/a\/2R000000HVET\/HfcgiChyabtiPTh6EjcDM6ZEwAOQV7IirEmRULgggMM."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Aernouts, M., BniLam, N., Podevijn, N., Plets, D., Joseph, W., Berkvens, R., and Weyn, M. (2020, January 20\u201323). Combining TDoA and AoA with a Particle Filter in an Outdoor LoRaWAN Network. Proceedings of the IEEE\/ION PLANSx Position, Location and Navigation Symposium (PLANS), Portland, OR, USA.","DOI":"10.1109\/PLANS46316.2020.9110172"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Augustin, A., Yi, J., Clausen, T., and Townsley, W. (2016). A Study of LoRa: Long Range & Low Power Networks for the Internet of Things. Sensors, 16.","DOI":"10.3390\/s16091466"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1561","DOI":"10.1109\/COMST.2018.2877382","article-title":"Internet of Mobile Things: Overview of LoRaWAN, DASH7, and NB-IoT in LPWANs standards and Supported Mobility","volume":"21","author":"Ayoub","year":"2019","journal-title":"IEEE Commun. Surv. Tutorials"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"3140","DOI":"10.1109\/TCOMM.2020.2974464","article-title":"Low Complexity LoRa Frame Synchronization for Ultra-Low Power Software-Defined Radios","volume":"68","author":"Bernier","year":"2020","journal-title":"IEEE Trans. Commun."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"5607","DOI":"10.1109\/TII.2019.2958620","article-title":"LoRaWAN Range Extender for Industrial IoT","volume":"16","author":"Sisinni","year":"2020","journal-title":"IEEE Trans. Ind. Informatics"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Janssen, T., Aernouts, M., Berkvens, R., and Weyn, M. (2018, January 24\u201327). Outdoor Fingerprinting Localization Using Sigfox. Proceedings of the 2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Nantes, France.","DOI":"10.1109\/IPIN.2018.8533826"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Barolli, L., Hellinckx, P., and Natwichai, J. (2019). Comparing Machine Learning Algorithms for RSS-Based Localization in LPWAN. International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC-2019), Springer International Publishing.","DOI":"10.1007\/978-3-030-33509-0"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Janssen, T., Weyn, M., and Berkvens, R. (2020, January 2\u20134). A Primer on Real-world RSS-based Outdoor NB-IoT Localization. Proceedings of the International Conference on Localization and GNSS (ICL-GNSS), Tampere, Finland.","DOI":"10.1109\/ICL-GNSS49876.2020.9115578"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1223","DOI":"10.1109\/TAP.2018.2880014","article-title":"Synchronization of multiple independent subarray antennas: An application for angle of arrival estimation","volume":"67","author":"BniLam","year":"2019","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_15","unstructured":"Bnilam, N., Joosens, D., Steckel, J., and Weyn, M. (April, January 31). Low Cost AoA Unit for IoT Applications. Proceedings of the 13th European Conference on Antennas and Propagation (EuCAP 2019), Krakow, Poland."},{"key":"ref_16","unstructured":"Semtech (2020, July 05). Application Note: Ranging with the SX1280 Transceiver. Available online: https:\/\/semtech.my.salesforce.com\/sfc\/p\/#E0000000JelG\/a\/44000000MDiH\/OF02Lve2RzM6pUw9gNgSJXbDNaQJ_NtQ555rLzY3UvY."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Wolf, F., Le Deroff, K., de Rivaz, S., Deparis, N., Dehmas, F., and Cances, J.P. (2019, January 23\u201324). Benchmarking of Narrowband LPWA Physical Layer Ranging Technologies. Proceedings of the 2019 16th Workshop on Positioning, Navigation and Communications (WPNC), Bremen, Germany.","DOI":"10.1109\/WPNC47567.2019.8970248"},{"key":"ref_18","first-page":"160","article-title":"Ambient interference effects in Wi-Fi networks","volume":"Volume 6091 LNCS","author":"Mahanti","year":"2010","journal-title":"International Conference on Research in Networking"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1007\/s11235-020-00658-w","article-title":"Performance analysis of LoRa in the 2.4 GHz ISM band: Coexistence issues with Wi-Fi","volume":"74","author":"Polak","year":"2020","journal-title":"Telecommun. Syst."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Karvonen, H., Pomalaza-R\u00e1ez, C., Mikhaylov, K., H\u00e4m\u00e4l\u00e4inen, M., and Iinatti, J. (2019). Experimental Performance Evaluation of BLE 4 Versus BLE 5 in Indoors and Outdoors Scenarios. Advances in Body Area Networks, Springer.","DOI":"10.1007\/978-3-030-02819-0_18"},{"key":"ref_21","unstructured":"Knight, M., and Seeber, B. (2016). Decoding LoRa: Realizing a Modern LPWAN with SDR. Proc. GNU Radio Conf., 1."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1818","DOI":"10.1109\/LSP.2017.2762960","article-title":"Frequency Shift Chirp Modulation: The LoRa Modulation","volume":"24","author":"Vangelista","year":"2017","journal-title":"IEEE Signal Process. Lett."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Robyns, P., Quax, P., Lamotte, W., and Thenaers, W. (2018, January 19\u201321). A multi-channel software decoder for the LoRa modulation scheme. Proceedings of the 3rd International Conference on Internet of Things, Big Data and Security (IoTBDS 2018), Funchal, Madeira, Portugal.","DOI":"10.5220\/0006668400410051"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Ghanaatian, R., Afisiadis, O., Cotting, M., and Burg, A. (2019, January 12\u201317). Lora Digital Receiver Analysis and Implementation. Proceedings of the 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brighton, UK.","DOI":"10.1109\/ICASSP.2019.8683504"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1406","DOI":"10.1109\/18.144727","article-title":"Generalized chirp-like polyphase sequences with optimum correlation properties","volume":"38","author":"Popovic","year":"1992","journal-title":"IEEE Trans. Inf. Theory"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"4024","DOI":"10.1109\/TCOMM.2014.2364597","article-title":"Analysis of the frequency offset effect on Zadoff-Chu sequence timing performance","volume":"62","author":"Hua","year":"2014","journal-title":"IEEE Trans. Commun."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1016\/j.aeue.2011.11.008","article-title":"Path loss model and prediction of range, power and throughput for 802.11n in large conference rooms","volume":"66","author":"Heereman","year":"2012","journal-title":"AEU-Int. J. Electron. Commun."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"535","DOI":"10.1007\/s11277-011-0467-4","article-title":"Simple Indoor Path Loss Prediction Algorithm and Validation in Living Lab Setting","volume":"68","author":"Plets","year":"2013","journal-title":"Wirel. Pers. Commun."},{"key":"ref_29","first-page":"7154","article-title":"The distribution of path loss exponent in 3D indoor environment","volume":"12","author":"Razali","year":"2017","journal-title":"Int. J. Appl. Eng. Res."},{"key":"ref_30","first-page":"1","article-title":"Comparison of Empirical Propagation Path Loss Models for Mobile Communication","volume":"5","author":"Mollel","year":"2014","journal-title":"Comput. Eng. Intell. Syst."},{"key":"ref_31","first-page":"23","article-title":"Channel Characterization and Propagation Models for LTE Path Loss Prediction in Urban and Suburban Ghana","volume":"11","author":"Iskander","year":"2019","journal-title":"Int. J. Wirel. Mob. Networks (IJWMN)"}],"updated-by":[{"DOI":"10.3390\/s20226428","type":"correction","label":"Correction","source":"publisher","updated":{"date-parts":[[2020,8,5]],"date-time":"2020-08-05T00:00:00Z","timestamp":1596585600000}}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/16\/4366\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,3]],"date-time":"2025-08-03T22:24:09Z","timestamp":1754259849000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/16\/4366"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,8,5]]},"references-count":31,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2020,8]]}},"alternative-id":["s20164366"],"URL":"https:\/\/doi.org\/10.3390\/s20164366","relation":{"correction":[{"id-type":"doi","id":"10.3390\/s20226428","asserted-by":"object"}]},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,8,5]]}}}