{"id":479336,"date":"2023-08-09T10:33:53","date_gmt":"2023-08-09T10:33:53","guid":{"rendered":""},"modified":"2023-09-05T11:18:37","modified_gmt":"2023-09-05T11:18:37","slug":"time-division-multiplexing","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/time-division-multiplexing\/","title":{"rendered":"Gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian"},"content":{"rendered":"<p>Gh\u00e9p k\u00eanh ph\u00e2n chia theo th\u1eddi gian (TDM) l\u00e0 ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u \u0111\u1ed9c l\u1eadp tr\u00ean \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u chung b\u1eb1ng c\u00e1c c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a \u1edf m\u1ed7i \u0111\u1ea7u c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n, sao cho m\u1ed7i t\u00edn hi\u1ec7u ch\u1ec9 xu\u1ea5t hi\u1ec7n tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n m\u1ed9t ph\u1ea7n th\u1eddi gian trong m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn. m\u00f4 h\u00ecnh xen k\u1ebd. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u c\u1ee7a m\u00f4i tr\u01b0\u1eddng truy\u1ec1n v\u01b0\u1ee3t qu\u00e1 t\u1ed1c \u0111\u1ed9 c\u1ee7a t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n<p>Gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb cu\u1ed1i th\u1ebf k\u1ef7 19 khi \u0111i\u1ec7n b\u00e1o l\u00e0 ph\u01b0\u01a1ng th\u1ee9c li\u00ean l\u1ea1c ph\u1ed5 bi\u1ebfn. Tuy nhi\u00ean, h\u00ecnh th\u1ee9c TDM d\u1ec5 nh\u1eadn bi\u1ebft \u0111\u1ea7u ti\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o gi\u1eefa th\u1ebf k\u1ef7 20 cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i.<\/p>\n<ul>\n<li><strong>th\u1eadp ni\u00ean 1870<\/strong>: Nh\u1eefng th\u1eed nghi\u1ec7m ban \u0111\u1ea7u v\u1ec1 qu\u1ea3n l\u00fd t\u00edn hi\u1ec7u d\u1ef1a tr\u00ean th\u1eddi gian trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n b\u00e1o.<\/li>\n<li><strong>1962<\/strong>: \u0110\u01b0\u1eddng T1 \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u s\u1eed d\u1ee5ng TDM \u0111\u1ec3 th\u1ef1c hi\u1ec7n nhi\u1ec1u cu\u1ed9c g\u1ecdi tho\u1ea1i qua m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn duy nh\u1ea5t.<\/li>\n<li><strong>th\u1eadp ni\u00ean 1970<\/strong>: S\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a TDM tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng vi\u1ec5n th\u00f4ng, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c m\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1.<\/li>\n<\/ul>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<p>TDM bao g\u1ed3m vi\u1ec7c chia m\u00f4i tr\u01b0\u1eddng truy\u1ec1n th\u00f4ng th\u00e0nh nhi\u1ec1u khe th\u1eddi gian, m\u1ed7i khe \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh cho m\u1ed9t lu\u1ed3ng ho\u1eb7c k\u00eanh d\u1eef li\u1ec7u kh\u00e1c nhau. Ph\u1ea7n n\u00e0y kh\u00e1m ph\u00e1 c\u00e1c c\u01a1 ch\u1ebf, bi\u1ebfn th\u1ec3 v\u00e0 nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n.<\/p>\n<h3>C\u01a1 h\u1ecdc:<\/h3>\n<ul>\n<li><strong>Khe th\u1eddi gian<\/strong>: K\u00eanh \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u khe th\u1eddi gian v\u00e0 m\u1ed7i khe \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang cho m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u kh\u00e1c nhau.<\/li>\n<li><strong>Gh\u00e9p k\u00eanh<\/strong>: D\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u k\u00eanh \u0111\u01b0\u1ee3c xen k\u1ebd v\u00e0 truy\u1ec1n qua ph\u01b0\u01a1ng ti\u1ec7n d\u00f9ng chung.<\/li>\n<li><strong>T\u00e1ch k\u00eanh<\/strong>: \u0110\u1ea7u nh\u1eadn s\u1ebd t\u00e1ch c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u k\u1ebft h\u1ee3p v\u1ec1 d\u1ea1ng ban \u0111\u1ea7u.<\/li>\n<\/ul>\n<h3>C\u00e1c bi\u1ebfn th\u1ec3:<\/h3>\n<ul>\n<li><strong>TDM \u0111\u1ed3ng b\u1ed9 (STDM)<\/strong>: C\u1ed1 \u0111\u1ecbnh c\u00e1c khe th\u1eddi gian cho m\u1ed7i k\u00eanh, b\u1ea5t k\u1ec3 d\u1eef li\u1ec7u c\u00f3 s\u1eb5n \u0111\u1ec3 truy\u1ec1n hay kh\u00f4ng.<\/li>\n<li><strong>TDM kh\u00f4ng \u0111\u1ed3ng b\u1ed9 (ATDM)<\/strong>: C\u00e1c khe th\u1eddi gian \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 \u0111\u1ed9ng d\u1ef1a tr\u00ean nhu c\u1ea7u.<\/li>\n<\/ul>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian: TDM ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>Hi\u1ec3u c\u1ea5u tr\u00fac b\u00ean trong \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m tra c\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i:<\/p>\n<ul>\n<li><strong>B\u1ed9 gh\u00e9p k\u00eanh (MUX)<\/strong>: K\u1ebft h\u1ee3p nhi\u1ec1u t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o th\u00e0nh m\u1ed9t lu\u1ed3ng \u0111\u1ea7u ra xen k\u1ebd.<\/li>\n<li><strong>B\u1ed9 t\u00e1ch k\u00eanh (DEMUX)<\/strong>: T\u00e1ch c\u00e1c t\u00edn hi\u1ec7u xen k\u1ebd th\u00e0nh c\u00e1c lu\u1ed3ng ri\u00eang l\u1ebb ban \u0111\u1ea7u.<\/li>\n<\/ul>\n<h3>\u0110ang l\u00e0m vi\u1ec7c:<\/h3>\n<ol>\n<li><strong>Nh\u1eadp d\u1eef li\u1ec7u<\/strong>: M\u1ed9t s\u1ed1 lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o MUX.<\/li>\n<li><strong>Ph\u00e2n b\u1ed5 khe th\u1eddi gian<\/strong>: M\u1ed7i lu\u1ed3ng \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 m\u1ed9t khe th\u1eddi gian c\u1ee5 th\u1ec3.<\/li>\n<li><strong>S\u1ef1 k\u1ebft h\u1ee3p<\/strong>: MUX xen k\u1ebd c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u, g\u1eedi ch\u00fang qua k\u00eanh.<\/li>\n<li><strong>T\u00e1ch bi\u1ec7t<\/strong>: DEMUX \u1edf \u0111\u1ea7u nh\u1eadn s\u1ebd ph\u00e2n t\u00e1ch d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c xen k\u1ebd th\u00e0nh c\u00e1c lu\u1ed3ng g\u1ed1c.<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian<\/h2>\n<ul>\n<li><strong>Hi\u1ec7u qu\u1ea3<\/strong>: Cho ph\u00e9p t\u1eadn d\u1ee5ng t\u1ed1i \u0111a dung l\u01b0\u1ee3ng c\u1ee7a k\u00eanh.<\/li>\n<li><strong>Uy\u1ec3n chuy\u1ec3n<\/strong>: Ch\u1ee9a nhi\u1ec1u lo\u1ea1i d\u1eef li\u1ec7u v\u00e0 t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: D\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng v\u1edbi c\u00e1c k\u00eanh b\u1ed5 sung.<\/li>\n<li><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/strong>: Y\u00eau c\u1ea7u t\u00ednh to\u00e1n th\u1eddi gian v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian: B\u1ea3ng v\u00e0 danh s\u00e1ch<\/h2>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>STDM<\/td>\n<td>C\u00e1c khe th\u1eddi gian c\u1ed1 \u0111\u1ecbnh; mang t\u00ednh quy\u1ebft \u0111\u1ecbnh<\/td>\n<td>\u0110i\u1ec7n tho\u1ea1i, \u0110\u00e0i ph\u00e1t thanh<\/td>\n<\/tr>\n<tr>\n<td>ATDM<\/td>\n<td>Khe th\u1eddi gian \u0111\u1ed9ng; linh ho\u1ea1t<\/td>\n<td>M\u1ea1ng m\u00e1y t\u00ednh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p c\u1ee7a ch\u00fang<\/h2>\n<ul>\n<li><strong>C\u00f4ng d\u1ee5ng<\/strong>: Vi\u1ec5n th\u00f4ng, m\u1ea1ng m\u00e1y t\u00ednh, truy\u1ec1n h\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1.<\/li>\n<li><strong>C\u00e1c v\u1ea5n \u0111\u1ec1<\/strong>: S\u1ef1 c\u1ed1 \u0111\u1ed3ng b\u1ed9 h\u00f3a, kh\u00f4ng hi\u1ec7u qu\u1ea3 khi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u1ea5p, tri\u1ec3n khai ph\u1ee9c t\u1ea1p.<\/li>\n<li><strong>C\u00e1c gi\u1ea3i ph\u00e1p<\/strong>: K\u1ef9 thu\u1eadt \u0111\u1ed3ng b\u1ed9 h\u00f3a n\u00e2ng cao, s\u1eed d\u1ee5ng ATDM \u0111\u1ec3 ph\u00e2n b\u1ed5 \u0111\u1ed9ng, thi\u1ebft k\u1ebf m\u00f4-\u0111un \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a.<\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 nh\u1eefng so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>TDM<\/th>\n<th>Gh\u00e9p k\u00eanh ph\u00e2n chia t\u1ea7n s\u1ed1 (FDM)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n b\u1ed5<\/td>\n<td>D\u1ef1a tr\u00ean th\u1eddi gian<\/td>\n<td>D\u1ef1a tr\u00ean t\u1ea7n s\u1ed1<\/td>\n<\/tr>\n<tr>\n<td>Uy\u1ec3n chuy\u1ec3n<\/td>\n<td>Trung b\u00ecnh \u0111\u1ebfn cao<\/td>\n<td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian<\/h2>\n<ul>\n<li><strong>T\u00edch h\u1ee3p v\u1edbi m\u1ea1ng quang<\/strong>: T\u0103ng c\u01b0\u1eddng truy\u1ec1n d\u1eef li\u1ec7u.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng TDM th\u00f4ng minh<\/strong>: S\u1eed d\u1ee5ng AI \u0111\u1ec3 ph\u00e2n b\u1ed5 \u0111\u1ed9ng.<\/li>\n<li><strong>C\u00f4ng ngh\u1ec7 TDM xanh<\/strong>: Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p k\u00eanh ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi gh\u00e9p k\u00eanh ph\u00e2n chia th\u1eddi gian<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy, gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng TDM \u0111\u1ec3 qu\u1ea3n l\u00fd k\u1ebft n\u1ed1i m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. B\u1eb1ng c\u00e1ch ph\u00e2n b\u1ed5 c\u00e1c khe th\u1eddi gian c\u1ee5 th\u1ec3 cho c\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau c\u1ee7a m\u00e1y kh\u00e1ch, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a b\u0103ng th\u00f4ng v\u00e0 duy tr\u00ec vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u tr\u01a1n tru.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.itu.int\/rec\/T-REC-G.704\/en\" target=\"_new\" rel=\"noopener nofollow\">Khuy\u1ebfn ngh\u1ecb ITU-T G.704<\/a>: Ti\u00eau chu\u1ea9n cho TDM.<\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/\" target=\"_new\" rel=\"noopener\">D\u1ecbch v\u1ee5 OneProxy<\/a>: C\u00e1c \u1ee9ng d\u1ee5ng TDM c\u1ee7a OneProxy.<\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\" target=\"_new\" rel=\"noopener nofollow\">C\u00e1c b\u00e0i vi\u1ebft c\u1ee7a IEEE v\u1ec1 TDM<\/a>: Nghi\u00ean c\u1ee9u v\u00e0 xu\u1ea5t b\u1ea3n v\u1ec1 TDM.<\/li>\n<\/ul>","protected":false},"featured_media":479337,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479336","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Time-division Multiplexing: A Comprehensive Overview<\/mark>","faq_items":[{"question":"What is Time-division Multiplexing (TDM)?","answer":"<p>Time-division multiplexing (TDM) is a technique that transmits multiple data signals over a single communication medium by dividing the medium into time slots. Each slot carries a different data stream, allowing multiple channels to share the same physical transmission line.<\/p>"},{"question":"What is the history of Time-division Multiplexing?","answer":"<p>TDM originated with early experiments in telegraphy in the 1870s, but the recognizable form of TDM was developed in the mid-20th century. It was widely adopted with the introduction of T1 lines in 1962 and subsequently expanded across digital telecommunications networks.<\/p>"},{"question":"How does Time-division Multiplexing work?","answer":"<p>TDM works by allocating specific time slots to different data streams. A multiplexer (MUX) at the transmission end interleaves these streams and sends them over the channel. A demultiplexer (DEMUX) at the receiving end separates them into original streams.<\/p>"},{"question":"What are the key features of Time-division Multiplexing?","answer":"<p>The key features of TDM include its efficiency in utilizing a channel's capacity, flexibility in accommodating various data types and rates, scalability, and complexity due to precise timing and synchronization requirements.<\/p>"},{"question":"What are the different types of Time-division Multiplexing?","answer":"<p>There are two main types of TDM: Synchronous TDM (STDM), which uses fixed time slots for each channel, and Asynchronous TDM (ATDM), which allocates time slots dynamically based on demand.<\/p>"},{"question":"How is Time-division Multiplexing used, and what are common problems and solutions?","answer":"<p>TDM is used in telecommunications, computer networks, and digital broadcasting. Common problems include synchronization issues and inefficiency during low traffic. Solutions involve advanced synchronization techniques and using ATDM for dynamic allocation.<\/p>"},{"question":"What are the future perspectives related to Time-division Multiplexing?","answer":"<p>Future perspectives include integration with optical networks, intelligent TDM systems using AI for dynamic allocation, and the development of energy-efficient, green TDM technologies.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with Time-division Multiplexing?","answer":"<p>Proxy servers such as OneProxy can utilize TDM to manage connections efficiently by allocating specific time slots for different client requests, optimizing bandwidth, and maintaining smooth data transmission.<\/p>"},{"question":"Where can I find more information about Time-division Multiplexing?","answer":"<p>For more detailed information, you can refer to ITU-T Recommendation G.704, OneProxy\u2019s official website, and IEEE\u2019s research papers and publications on TDM. Links to these resources are provided in the related links section of the main article.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479336\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479337"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}