[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-504624-105":59,"doc-detail-504624-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","fast-and-light-bandwidth-testing-for-internet-users","Fast and Light Bandwidth Testing for Internet Users","","Bandwidth testing measures end-host access bandwidth, which is essential for network-aware content delivery. Existing bandwidth testing services are slow and expensive because their designs suppress measurement noise using excessive temporal and spatial redundancy, increasing runtime and client data consumption and often requiring large deployments. FastBTS accelerates and reduces cost while preserving accuracy by exploiting noise via fuzzy rejection sampling, elastic probing, denoised sampling, and multihoming with server selection. With only 30 servers, it matches state-of-the-art accuracy using far less infrastructure and data.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/fast-and-light-bandwidth-testing-for-internet-users/504624/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/fast-and-light-bandwidth-testing-for-internet-users/504624.png","ImageObject",300,407,{"name":92,"@type":93},"McGucket","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-12","2026-10-03",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What problem does FastBTS address in bandwidth testing services?","Question",{"text":112,"@type":113},"FastBTS targets the slowness and high cost of existing bandwidth testing services, which come from methodologies that use excessive temporal and spatial redundancy to handle measurement noise.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is the key idea behind FastBTS’s noise handling?",{"text":117,"@type":113},"FastBTS accommodates and exploits noise rather than repetitively and exhaustively suppressing it, using a fuzzy rejection sampling framework.",{"name":119,"@type":110,"acceptedAnswer":120},"How does FastBTS achieve high accuracy with fewer servers?",{"text":121,"@type":113},"FastBTS builds an end-to-end testing system with elastic bandwidth probing, denoised sampling from high-fidelity windows, and support for server selection and multihoming, enabling comparable accuracy with only about 30 test servers.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},504624,1791275420,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":39,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":36},1236954412713,"https://us-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Fast and Light Bandwidth Testing for Internet Users  \nXinlei Yang 1⇤ , Xianlong Wang1⇤ , Zhenhua Li1 , Yunhao Liu 1 Feng Qian2 , Liangyi Gong 1 , Rui Miao3 , Tianyin Xu4  \n1 Tsinghua University 2 University of Minnesota 3Alibaba Group 4 UIUC  \nAbstract  \nBandwidth testing measures the access bandwidth of end hosts, which is crucial to emerging Internet applications for network-aware content delivery. However, today’s bandwidth testing services (BTSes) are slow and costly—the tests take along time to run, consume excessive data usage at the client side, and/or require large-scale test server deployments. Theinefficiency and high cost of BTSes root in their methodologies that use excessive temporal and spatial redundancies for combating noises in Internet measurement.  \nThis paper presents FastBTS to make BTS fast and cheap while maintaining high accuracy. The key idea of FastBTSis to accommodate and exploit the noise rather than repetitively and exhaustively suppress the impact of noise. This is achieved by a novel statistical sampling framework (termed fuzzy rejection sampling) . We build FastBTS as an end-toend BTS that implements fuzzy rejection sampling based on elastic bandwidth probing and denoised sampling from highfidelity windows, together with server selection and multihoming support. Our evaluation shows that with only 30 test servers, FastBTS achieves the same level of accuracy compared to the state-of-the-art BTS ( [SpeedTest](SpeedTest.net)[.](SpeedTest.net)[net](SpeedTest.net)) that deploys ⇠ 12,000 servers. Most importantly, FastBTS makes bandwidth tests 5 .6⇥ faster and 10 .7 ⇥ more data-efficient.  \n1 Introduction  \nAccess link bandwidth of Internet users commonly constitutes the bottleneck of Internet content delivery, especially for emerging applications like AR/VR. In traditional residential broadband networks, the access bandwidth is largely stable and matches ISPs’ service plans [9, 14, 15] . In recent years, however, it becomes less transparent and more dynamic, driven by virtual network operators (VNOs), user mobility, and infrastructure dynamics [21] .  \nTo effectively measure the access bandwidth, bandwidth testing services (BTSes) have been widely developed and deployed. BTSes serve as a core component of many applications that conduct network-aware content delivery [1, 31] . BTSes’ data are cited in government reports, trade press [37], and ISPs’ advertisements [29]; they play a key role in ISP customers’ decision making [39] . During COVID-19, BTSes are top “home networking tips” to support telework [11, 12] . The following lists a few common use cases of BTSes:  \n⇤ Co-primary authors. Zhenhua Li is the corresponding author.  \n• VNO has been a popular operation model that resells network services from base carrier(s) . The shared nature of VNOs and their complex interactions with the base carriers make it challenging to ensure service qualities [69, 72, 78] . Many ISPs and VNOs today either build their own BTSes [2], or recommend end users to use public BTSes. For example, [SpeedTest](SpeedTest.net)[.](SpeedTest.net)[net](SpeedTest.net), a popular BTS, serves more than 500M unique visitors per year [4] .  \n• Wireless access is becoming ubiquitous, exhibiting heterogeneous and dynamic performance. To assist users to locate good coverage areas, cellular carriers offer “performance maps” [16], and several commercial products (e.g., WiFiMaster used by 800M mobile devices [31]) employ crowd-sourced measurements to probe bandwidth.  \n• Emerging bandwidth-hungry apps (e.g., UHD videos and VR/AR), together with bandwidth-fluctuating access networks (e.g., 5G), make BTSes an integral component of modern mobile platforms. For example, the newly released Android 11 provides 5G apps with a bandwidth estimation API that offers “a rough guide of the expected peak bandwidth for the first hop of the given transport [20] .”  \nMost of today’s BTSes work in three steps: (1) setup,(2) bandwidth probing, and (3) bandwidth e","cbCaibVDu3jYB6Np","https://ap.wps.com/l/cbCaibVDu3jYB6Np","pdf",1548693,16,"English","# Introduction\n## Bandwidth testing services and use cases\n## How bandwidth testing works\n## Challenges: measurement noise\n## Limitations of existing approaches","[{\"question\":\"What problem does FastBTS address in bandwidth testing services?\",\"answer\":\"FastBTS targets the slowness and high cost of existing bandwidth testing services, which come from methodologies that use excessive temporal and spatial redundancy to handle measurement noise.\"},{\"question\":\"What is the key idea behind FastBTS’s noise handling?\",\"answer\":\"FastBTS accommodates and exploits noise rather than repetitively and exhaustively suppressing it, using a fuzzy rejection sampling framework.\"},{\"question\":\"How does FastBTS achieve high accuracy with fewer servers?\",\"answer\":\"FastBTS builds an end-to-end testing system with elastic bandwidth probing, denoised sampling from high-fidelity windows, and support for server selection and multihoming, enabling comparable accuracy with only about 30 test servers.\"}]","Fast and Light Bandwidth Testing for Internet Users | PDF",1791071298]