{"id":17980,"date":"2025-11-21T01:42:58","date_gmt":"2025-11-21T09:42:58","guid":{"rendered":"https:\/\/www.lansitec.com\/?p=17980"},"modified":"2025-11-24T11:51:23","modified_gmt":"2025-11-24T03:51:23","slug":"how-to-calculate-the-network-capacity-of-lorawan","status":"publish","type":"post","link":"https:\/\/www.lansitec.com\/fr\/blogs\/comment-calculer-la-capacite-du-reseau-lorawan\/","title":{"rendered":"Comment calculer la capacit\u00e9 du r\u00e9seau LoRaWAN\u00a0?"},"content":{"rendered":"\n<p>To calculate the network capacity of <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a>, several technical factors must be considered, including channel bandwidth, spreading factor (SF), data rate, message size, duty cycle limitations, number of <a href=\"https:\/\/www.lansitec.com\/de\/gateways\/\">gateways<\/a>, and the message transmission frequency of devices. Below is a detailed step-by-step guide to help estimate <a href=\"https:\/\/www.lansitec.com\/de\/blogs\/optimierung-der-lorawan-netzwerkkapazitat\/\">LoRaWAN network capacity<\/a>:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Identify Key Parameters<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bandwidth (BW): <\/strong>Typically 125 kHz.<\/li>\n\n\n\n<li><strong>Spreading Factor (SF):<\/strong> <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> supports SF7 to SF12, where higher SF values mean lower data rates and longer transmission times.<\/li>\n\n\n\n<li><strong>Data Rate (DR): <\/strong>Determined by the bandwidth and SF; different DR values result in different transmission times.<\/li>\n\n\n\n<li><strong>Payload Size: <\/strong>Usually measured in bytes, assuming 12 bytes here.<\/li>\n\n\n\n<li><strong>Message Transmission Frequency:<\/strong> Assume each device sends 10 messages per day.<\/li>\n\n\n\n<li><strong>Duty Cycle Limitation: <\/strong>Assume 1% (a typical restriction in Europe).<\/li>\n\n\n\n<li><strong>Number of Channels: <\/strong>Assume 8 channels.<\/li>\n\n\n\n<li><strong>Number of Devices: <\/strong>This is the parameter we need to estimate.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2) Calculate the Transmission Time for a Single Message<\/h3>\n\n\n\n<p>Use the following formula to calculate the airtime of a single LoRa message:<br>[T<sub>msg<\/sub> = Symbol Time \u00d7 (Payload Symbols +Preamble Length)]<br>Where Symbol Time depends on SF and BW, and Payload Symbols are related to the payload size and coding rate (CR).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symbol Time<\/strong> = (2<sup>SF<\/sup>\/BW)<\/li>\n\n\n\n<li><strong>Payload Symbols <\/strong>depend on CR and the payload size.<\/li>\n<\/ul>\n\n\n\n<p>For example, with a 125 kHz bandwidth and SF12, sending a 12-byte message may take about 1.5 seconds (this is an approximation, and specific values can be calculated using specialized tools).<\/p>\n\n\n\n<p>A simple way to calculate this number is to use the tool below.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.semtech.com\/design-support\/lora-calculator\" rel=\"nofollow noopener\" target=\"_blank\">https:\/\/www.semtech.com\/design-support\/lora-calculator<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3) Calculate the Maximum Number of Messages Per Channel<\/h3>\n\n\n\n<p>Assuming the channel is working at the maximum duty cycle:<\/p>\n\n\n\n<p>[N<sub>max per channel <\/sub>=T<sub>available<\/sub>\/T<sub>msg<\/sub>]<\/p>\n\n\n\n<p>Where is the total available time in a day (typically 24 hours multiplied by 3600 seconds) and the duty cycle limit (e.g., 1%).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4) Calculate the Maximum Number of Messages Per Gateway<\/h3>\n\n\n\n<p>If there are 8 channels:<\/p>\n\n\n\n<p>[N<sub>max per gateway <\/sub>= N<sub>max per channel<\/sub> \u00d7 8]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5) Estimate the Maximum Number of Devices<\/h3>\n\n\n\n<p>Assuming each device sends 10 messages per day:<\/p>\n\n\n\n<p>[N<sub>devices<\/sub> = N<sub>max per gateway<\/sub>\/Daily Messages per Device]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6) Final Network Capacity Estimation<\/h3>\n\n\n\n<p>By following the steps above, you can estimate the theoretical maximum capacity of a <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> network. However, the actual capacity is typically lower due to real-world factors such as device distribution, signal interference, package confliction and transmission failure rates. In practice, the actual capacity of an 8-channel gateway might range from several thousand to tens of thousands of devices.<\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If the transmission time (T_&#8221;msg&#8221; ) for a single message is 1.5 seconds and the duty cycle is 1%, then one channel can handle approximately 576 messages per day.<\/li>\n\n\n\n<li>Across 8 channels, this totals around 4608 messages per day.<\/li>\n\n\n\n<li>If each device sends 10 messages per day, the gateway can support approximately 460 devices. We recommend to use ~15% of the total capacity of a gateway to avoid repeatedly package conflicts and lost.<\/li>\n<\/ul>\n\n\n\n<p>This calculation method can be applied to various <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> deployment scenarios, with specific values varying based on network configuration and environmental conditions. Please <a href=\"https:\/\/www.lansitec.com\/contact-us\/\" data-type=\"page\" data-id=\"752\">contact us<\/a> to get the \u201c<strong>8 Channel <a href=\"https:\/\/www.lansitec.com\/de\/blogs\/optimierung-der-lorawan-netzwerkkapazitat\/\">LoRaWAN Network Capacity<\/a> Evaluation Tool<\/strong>\u201d<\/p>\n\n\n<div class=\"vlp-link-container vlp-layout-basic wp-block-visual-link-preview-link\"><a href=\"https:\/\/www.lansitec.com\/blogs\/optimizing-lorawan-network-capacity\/\" class=\"vlp-link\" title=\"Optimizing LoRaWAN Network Capacity - Lansitec\" rel=\"nofollow\" target=\"_blank\"><\/a><div class=\"vlp-layout-zone-side\"><div class=\"vlp-block-2 vlp-link-image\"><img decoding=\"async\" src=\"https:\/\/www.lansitec.com\/wp-content\/uploads\/2025\/11\/Optimizing-LoRaWAN-Network-Capacity.jpg\" style=\"max-width: 150px; max-height: 150px\" alt=\"\" title=\"\"><\/div><\/div><div class=\"vlp-layout-zone-main\"><div class=\"vlp-block-0 vlp-link-title\">Optimizing <a href=\"https:\/\/www.lansitec.com\/de\/blogs\/optimierung-der-lorawan-netzwerkkapazitat\/\">LoRaWAN Network Capacity<\/a> &#8211; Lansitec<\/div><div class=\"vlp-block-1 vlp-link-summary\">A <a href=\"https:\/\/www.lansitec.com\/de\/blogs\/optimierung-der-lorawan-netzwerkkapazitat\/\">LoRaWAN network capacity<\/a> refers to the maximum number of devices a <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> network can handle simultaneously, essentially its ability to efficiently transmit data from a large number of low-power IoT devices within a specific geographical area.<\/div><\/div><\/div>\n\n<div class=\"vlp-link-container vlp-layout-basic wp-block-visual-link-preview-link\"><a href=\"https:\/\/www.lansitec.com\/blogs\/what-factors-influence-lorawan-network-capacity\/\" class=\"vlp-link\" title=\"What Factors Influence LoRaWAN Network Capacity? - Lansitec\" rel=\"nofollow\" target=\"_blank\"><\/a><div class=\"vlp-layout-zone-side\"><div class=\"vlp-block-2 vlp-link-image\"><img decoding=\"async\" src=\"https:\/\/www.lansitec.com\/wp-content\/uploads\/2025\/11\/What-Factors-Influence-LoRaWAN-Network-Capacity.jpg\" style=\"max-width: 150px; max-height: 150px\" alt=\"\" title=\"\"><\/div><\/div><div class=\"vlp-layout-zone-main\"><div class=\"vlp-block-0 vlp-link-title\">What Factors Influence <a href=\"https:\/\/www.lansitec.com\/de\/blogs\/optimierung-der-lorawan-netzwerkkapazitat\/\">LoRaWAN Network Capacity<\/a>? &#8211; Lansitec<\/div><div class=\"vlp-block-1 vlp-link-summary\">The frequency band and bandwidth used by <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> directly affect data transmission speed and capacity. A wider bandwidth allows for more data transmission but<\/div><\/div><\/div>\n\n<div class=\"vlp-link-container vlp-layout-basic wp-block-visual-link-preview-link\"><a href=\"https:\/\/www.lansitec.com\/blogs\/how-to-increase-the-capacity-of-a-lorawan-network\/\" class=\"vlp-link\" title=\"How To Increase The Capacity of A LoRaWAN Network? - Lansitec\" rel=\"nofollow\" target=\"_blank\"><\/a><div class=\"vlp-layout-zone-side\"><div class=\"vlp-block-2 vlp-link-image\"><img decoding=\"async\" src=\"https:\/\/www.lansitec.com\/wp-content\/uploads\/2025\/11\/How-To-Increase-The-Capacity-of-A-LoRaWAN-Network.jpg\" style=\"max-width: 150px; max-height: 150px\" alt=\"\" title=\"\"><\/div><\/div><div class=\"vlp-layout-zone-main\"><div class=\"vlp-block-0 vlp-link-title\">How To Increase The Capacity of A <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> Network? &#8211; Lansitec<\/div><div class=\"vlp-block-1 vlp-link-summary\">To increase the capacity of a <a href=\"https:\/\/www.lansitec.com\/de\/lorawan\/\">LoRaWAN<\/a> network, several strategies can be employed:<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>To calculate the network capacity of LoRaWAN, several technical factors must be considered, including channel bandwidth, spreading factor (SF), data rate, message size, duty cycle limitations, number of gateways, and the message transmission frequency of devices. Below is a detailed step-by-step guide to help estimate LoRaWAN network capacity: 1) Identify Key Parameters 2) Calculate the&hellip;&nbsp;<a href=\"https:\/\/www.lansitec.com\/fr\/blogs\/comment-calculer-la-capacite-du-reseau-lorawan\/\" rel=\"bookmark\">Lire la suite \u00bb<span class=\"screen-reader-text\">Comment calculer la capacit\u00e9 du r\u00e9seau LoRaWAN\u00a0?<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":17994,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[268],"tags":[],"class_list":["post-17980","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iot-faqs"],"_links":{"self":[{"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/posts\/17980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/comments?post=17980"}],"version-history":[{"count":0,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/posts\/17980\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/media\/17994"}],"wp:attachment":[{"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/media?parent=17980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/categories?post=17980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lansitec.com\/fr\/wp-json\/wp\/v2\/tags?post=17980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}