{"id":641,"date":"2023-03-14T10:17:07","date_gmt":"2023-03-14T10:17:07","guid":{"rendered":"https:\/\/vtechsolutions.vn\/blog\/?p=641"},"modified":"2023-10-25T02:52:26","modified_gmt":"2023-10-25T02:52:26","slug":"cong-nghe-chuan-wifi-5-la-gi","status":"publish","type":"post","link":"https:\/\/vtechsolutions.vn\/blog\/cong-nghe-chuan-wifi-5-la-gi\/","title":{"rendered":"Chu\u1ea9n Wifi 5 (802.11ac) l\u00e0 g\u00ec? Chu\u1ea9n Wifi 5 h\u01a1n g\u00ec so v\u1edbi Wifi 4?"},"content":{"rendered":"<p><a href=\"https:\/\/vtechsolutions.vn\/blog\/cong-nghe-chuan-wifi-5-la-gi\/\">Chu\u1ea9n Wifi 5 (802.11 ac)<\/a> l\u00e0 c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00f4ng d\u00e2y m\u1edbi ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Wifi th\u1ebf h\u1ec7 th\u1ee9 5 c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng v\u00e0 \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i h\u01a1n nhi\u1ec1u so v\u1edbi th\u1ebf h\u1ec7 ti\u1ec1n nhi\u1ec7m Wifi 4. Chi ti\u1ebft chu\u1ea9n <strong>Wifi 5 l\u00e0 g\u00ec?<\/strong> V\u00ec sao n\u00ean ch\u1ecdn chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 thay v\u00ec Wifi 4? VTech s\u1ebd cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft trong b\u00e0i vi\u1ebft n\u00e0y.<\/p>\n<div id=\"toc_container\" class=\"toc_light_blue no_bullets\"><p class=\"toc_title\">T&oacute;m t\u1eaft n\u1ed9i dung<\/p><ul class=\"toc_list\"><li><a href=\"#1_Wifi_5_la_gi\">1\/ Wifi 5 l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#2_Nhung_cong_nghe_nao_duoc_trang_bi_tren_chuan_Wifi_5\">2\/ Nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0o \u0111\u01b0\u1ee3c trang b\u1ecb tr\u00ean chu\u1ea9n Wifi 5<\/a><ul><li><a href=\"#22_Cong_nghe_Beamforming\">2.2\/ C\u00f4ng ngh\u1ec7 Beamforming<\/a><\/li><li><a href=\"#23_Cong_nghe_QAM_256\">2.3\/ C\u00f4ng ngh\u1ec7 QAM 256<\/a><\/li><li><a href=\"#24_Cong_nghe_luong_Stream\">2.4\/ C\u00f4ng ngh\u1ec7 lu\u1ed3ng Stream<\/a><\/li><li><a href=\"#25_Cong_nghe_Multi_User\">2.5\/ C\u00f4ng ngh\u1ec7 Multi User<\/a><\/li><\/ul><\/li><li><a href=\"#3_Nhung_dac_diem_noi_bat_cua_chuan_Wifi_5\">3\/ Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a chu\u1ea9n Wifi 5<\/a><ul><li><a href=\"#31_Bang_thong_rong_giup_tang_toc_do_truyen_tai\">3.1\/ B\u0103ng th\u00f4ng r\u1ed9ng gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i<\/a><\/li><li><a href=\"#32_Cong_nghe_Multi_User_da_nguoi_dung\">3.2\/ C\u00f4ng ngh\u1ec7 Multi User \u0111a ng\u01b0\u1eddi d\u00f9ng<\/a><\/li><li><a href=\"#33_Tam_phu_song_rong\">3.3\/ T\u1ea7m ph\u1ee7 s\u00f3ng r\u1ed9ng<\/a><\/li><li><a href=\"#34_Cong_nghe_chum_tin_hieu_Beamforming_trung_dich\">3.4\/ C\u00f4ng ngh\u1ec7 ch\u00f9m t\u00edn hi\u1ec7u Beamforming tr\u00fang \u0111\u00edch<\/a><\/li><li><a href=\"#35_Ho_tro_nhieu_luong_du_lieu\">3.5\/ H\u1ed7 tr\u1ee3 nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u<\/a><\/li><li><a href=\"#36_Co_the_tich_hop_voi_chuan_cu\">3.6\/ C\u00f3 th\u1ec3 t\u00edch h\u1ee3p v\u1edbi chu\u1ea9n c\u0169<\/a><\/li><\/ul><\/li><li><a href=\"#4_Chuan_Wifi_5_80211ac_vuot_troi_hon_chuan_Wifi_4_80211n_nhu_the_nao\">4\/ Chu\u1ea9n Wifi 5 (802.11ac) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n chu\u1ea9n Wifi 4 (802.11n) nh\u01b0 th\u1ebf n\u00e0o?<\/a><ul><li><a href=\"#41_Xet_ve_toc_do_truyen_du_lieu\">4.1\/ X\u00e9t v\u1ec1 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u<\/a><\/li><li><a href=\"#42_Xet_ve_tam_phu_song\">4.2\/ X\u00e9t v\u1ec1 t\u1ea7m ph\u1ee7 s\u00f3ng<\/a><\/li><li><a href=\"#43_Xet_ve_kha_nang_tuong_thich\">4.3\/ X\u00e9t v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/a><\/li><li><a href=\"#44_Xet_ve_pham_vi_truyen_du_lieu\">4.4\/ X\u00e9t v\u1ec1 ph\u1ea1m vi truy\u1ec1n d\u1eef li\u1ec7u<\/a><\/li><li><a href=\"#45_Xet_ve_gia_ca\">4.5\/ X\u00e9t v\u1ec1 gi\u00e1 c\u1ea3<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h2><span id=\"1_Wifi_5_la_gi\">1\/ Wifi 5 l\u00e0 g\u00ec?<\/span><\/h2>\n<p>C\u00f4ng ngh\u1ec7 <strong>Wifi 5<\/strong> c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 IEEE 802.11ac, Wifi ac, chu\u1ea9n Wifi 5, Wifi th\u1ebf h\u1ec7 th\u1ee9 5. \u0110\u00e2y l\u00e0 c\u00f4ng ngh\u1ec7 truy\u1ec1n m\u1ea1ng m\u1edbi ph\u00e1t tri\u1ec3n tr\u00ean n\u1ec1n t\u1ea3ng chu\u1ea9n Wifi 4 c\u0169, s\u1edf h\u1eefu \u0111\u1ea7y \u0111\u1ee7 \u01b0u \u0111i\u1ec3m v\u00e0 kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a phi\u00ean b\u1ea3n ti\u1ec1n nhi\u1ec7m.<\/p>\n<figure id=\"attachment_730\" aria-describedby=\"caption-attachment-730\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-730\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-la-gi-1024x472.jpg\" alt=\"Wifi 5 l\u00e0 c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n t\u1eeb n\u1ec1n t\u1ea3ng c\u1ee7a Wifi 4\" width=\"900\" height=\"414\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-la-gi-1024x472.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-la-gi-300x138.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-la-gi-768x354.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-la-gi.jpg 1305w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-730\" class=\"wp-caption-text\">Wifi 5 l\u00e0 c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n t\u1eeb n\u1ec1n t\u1ea3ng c\u1ee7a Wifi 4<\/figcaption><\/figure>\n<p>C\u00f4ng ngh\u1ec7 Wifi 5 \u0111em \u0111\u1ebfn kh\u1ea3 n\u0103ng truy\u1ec1n m\u1ea1ng nhanh h\u01a1n, \u1ed5n \u0111\u1ecbnh h\u01a1n, chuy\u1ec3n v\u00f9ng d\u1eef li\u1ec7u d\u1ec5 d\u00e0ng h\u01a1n. B\u00ean c\u1ea1nh \u0111\u00f3 Wifi th\u1ebf h\u1ec7 5 c\u00f2n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh h\u01a1n, h\u1ea1n ch\u1ebf s\u1ef1 c\u1ed1 m\u1ea1ng trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng. C\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c ra m\u1eaft v\u00e0o th\u00e1ng 12 n\u0103m 2013 v\u00e0 li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn \u0111\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng.<\/p>\n<h2><span id=\"2_Nhung_cong_nghe_nao_duoc_trang_bi_tren_chuan_Wifi_5\">2\/ Nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0o \u0111\u01b0\u1ee3c trang b\u1ecb tr\u00ean chu\u1ea9n Wifi 5<\/span><\/h2>\n<p>Chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 \u0111\u01b0\u1ee3c trang b\u1ecb nhi\u1ec1u c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i gi\u00fap t\u1ea1o m\u1ea1ng WLAN t\u1ed1t h\u01a1n v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n, \u0111\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng. C\u1ee5 th\u1ec3 l\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 Multi User, Beamforming, lu\u1ed3ng Stream v\u00e0 QAM. Chi ti\u1ebft t\u1eebng c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng tr\u00ean chu\u1ea9n Wifi 5 th\u1ebf n\u00e0o h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h3><span id=\"22_Cong_nghe_Beamforming\">2.2\/ C\u00f4ng ngh\u1ec7 Beamforming<\/span><\/h3>\n<p>Th\u1ef1c t\u1ebf c\u00f4ng ngh\u1ec7 Beamforming \u0111\u00e3 c\u00f3 \u1edf chu\u1ea9n 802.11n c\u0169 nh\u01b0ng ch\u01b0a th\u1ef1c s\u1ef1 t\u1ed1i \u01b0u. \u0110\u1ebfn c\u00f4ng ngh\u1ec7 Wifi th\u1ebf h\u1ec7 5 th\u00ec c\u00f4ng ngh\u1ec7 n\u00e0y m\u1edbi th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng t\u1ed1t, t\u0103ng tr\u1ea3i nghi\u1ec7m cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<p>N\u1ebfu nh\u01b0 Wifi th\u1ebf h\u1ec7 4 truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u1ed3ng \u0111\u1ec1u ra m\u1ecdi h\u01b0\u1edbng th\u00ec c\u00f4ng ngh\u1ec7 Beamforming gi\u00fap truy\u1ec1n t\u00edn hi\u1ec7u th\u00f4ng minh h\u01a1n. C\u00e1c thi\u1ebft b\u1ecb nh\u1eadn d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed, sau \u0111\u00f3 t\u00edn hi\u1ec7u truy\u1ec1n \u0111\u01b0\u1ee3c t\u1eadp trung truy\u1ec1n \u0111\u1ebfn h\u01b0\u1edbng c\u1ee5 th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb nh\u1eadn.<\/p>\n<p>Nh\u1edd c\u00f4ng ngh\u1ec7 Beamforming n\u00e0y m\u00e0 chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 c\u00f3 \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 truy\u1ec1n nhanh, ph\u1ea1m vi truy\u1ec1n r\u1ed9ng h\u01a1n c\u00e1c chu\u1ea9n m\u1ea1ng c\u0169. Ngo\u00e0i ra th\u00ec t\u00edn hi\u1ec7u m\u1ea1ng \u0111\u01b0\u1ee3c t\u1eadp trung n\u00ean kh\u1ecfe m\u1ea1nh, gi\u1ea3m t\u00ecnh tr\u1ea1ng nhi\u1ec5u khi c\u00f3 c\u00f9ng l\u00fac nhi\u1ec1u lu\u1ed3ng m\u1ea1ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h3><span id=\"23_Cong_nghe_QAM_256\">2.3\/ C\u00f4ng ngh\u1ec7 QAM 256<\/span><\/h3>\n<p>QAM l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Quadrature Amplitude Modulation, ngh\u0129a l\u00e0 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh bi\u00ean \u0111\u1ed9 vu\u00f4ng g\u00f3c c\u1ee7a t\u00edn hi\u1ec7u s\u00f3ng truy\u1ec1n. Th\u1ef1c t\u1ebf c\u00f4ng ngh\u1ec7 QAM v\u1eabn c\u00f3 \u1edf chu\u1ea9n Wifi 4 c\u0169 nh\u01b0ng \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn h\u01a1n \u1edf chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 m\u1edbi.<\/p>\n<p>C\u1ee5 th\u1ec3 Wifi 4 c\u00f3 c\u00f4ng ngh\u1ec7 64 QAM, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb ch\u1ec9 c\u00f3 th\u1ec3 g\u1eedi t\u1ed1i \u0111a 6 bit d\u1eef li\u1ec7u c\u00f9ng l\u00fac. Trong khi \u0111\u00f3 chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng ngh\u1ec7 256-QAM, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb g\u1eedi c\u00f9ng l\u00fac 8 bit d\u1eef li\u1ec7u. Nh\u1edd v\u1eady m\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n c\u1ee7a Wifi 5 cao h\u01a1n t\u1eeb 20 &#8211; 33% so v\u1edbi chu\u1ea9n Wifi ti\u1ec1n nhi\u1ec7m. Ng\u01b0\u1eddi d\u00f9ng s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c tr\u1ea3i nghi\u1ec7m m\u1ea1ng nhanh h\u01a1n, m\u01b0\u1ee3t m\u00e0 h\u01a1n.<\/p>\n<h3><span id=\"24_Cong_nghe_luong_Stream\">2.4\/ C\u00f4ng ngh\u1ec7 lu\u1ed3ng Stream<\/span><\/h3>\n<p>\u0110\u1ed9 tr\u1ec5 l\u1edbn l\u00e0 m\u1ed9t trong nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a chu\u1ea9n Wifi 4 c\u0169. C\u00f4ng ngh\u1ec7 lu\u1ed3ng Stream \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho chu\u1ea9n Wifi 5 m\u1edbi \u0111\u1ec3 kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y.<\/p>\n<p>C\u1ee5 th\u1ec3, chu\u1ea9n 802.11ac Wave 2 h\u1ed7 tr\u1ee3 4 lu\u1ed3ng kh\u00f4ng gian gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 v\u00e0 quy tr\u00ecnh giao ti\u1ebfp \u0111\u00e1ng k\u1ec3. K\u1ebft h\u1ee3p v\u1edbi c\u00f4ng ngh\u1ec7 \u0111a ng\u01b0\u1eddi d\u00f9ng Multi User, ng\u01b0\u1eddi d\u00f9ng m\u1ea1ng s\u1ebd nh\u1eadn ph\u1ea3n h\u1ed3i g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c v\u1edbi m\u1ecdi lo\u1ea1i y\u00eau c\u1ea7u. \u0110\u1ed9 tr\u1ec5 m\u1ea1ng \u0111\u01b0\u1ee3c gi\u1ea3m \u0111i \u0111\u00e1ng k\u1ec3.<\/p>\n<p>Ngo\u00e0i ra c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f2n gi\u00fap ph\u00e2n b\u1ed5 t\u00edn hi\u1ec7u truy\u1ec1n hi\u1ec7u qu\u1ea3 h\u01a1n, c\u00e1c thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m. Nh\u1edd v\u1eady m\u00e0 thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u00edt \u0111i\u1ec7n n\u0103ng h\u01a1n cho vi\u1ec7c k\u1ebft n\u1ed1i m\u1ea1ng, t\u1eeb \u0111\u00f3 t\u0103ng tu\u1ed5i th\u1ecd pin v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c.<\/p>\n<h3><span id=\"25_Cong_nghe_Multi_User\">2.5\/ C\u00f4ng ngh\u1ec7 Multi User<\/span><\/h3>\n<p>C\u00f4ng ngh\u1ec7 \u0111\u1ea7u ti\u00ean quan tr\u1ecdng m\u00e0 chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u00f3 l\u00e0 c\u00f4ng ngh\u1ec7 MIMO Multi User. C\u1ee5 th\u1ec3, c\u00f4ng ngh\u1ec7 n\u00e0y cho ph\u00e9p s\u1eed d\u1ee5ng nhi\u1ec1u b\u1ed9 ph\u00e1t v\u00e0 b\u1ed9 thu \u0111\u1ec3 g\u1eedi &#8211; nh\u1eadn c\u00f9ng l\u00fac nhi\u1ec1u t\u00edn hi\u1ec7u Wifi m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n \u0111\u01b0\u1eddng truy\u1ec1n.<\/p>\n<p>C\u00f4ng ngh\u1ec7 Multi User gi\u00fap t\u1ed1i \u01b0u h\u00f3a ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng Wifi. C\u00f9ng m\u1ed9t \u0111i\u1ec3m ph\u00e1t s\u00f3ng Access Point c\u00f3 th\u1ec3 cho nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng c\u00f9ng l\u00fac m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 truy\u1ec1n m\u1ea1ng thay v\u00ec m\u1ed9t ng\u01b0\u1eddi d\u00f9ng duy nh\u1ea5t nh\u01b0 Wifi 4.<\/p>\n<p><strong>&gt;&gt;&gt; Xem th\u00eam:<\/strong> <a href=\"https:\/\/vtechsolutions.vn\/blog\/he-thong-mang-may-tinh-la-gi\/\">H\u1ec7 th\u1ed1ng m\u1ea1ng m\u00e1y t\u00ednh l\u00e0 g\u00ec? V\u00ec sao c\u1ea7n x\u00e2y d\u1ef1ng m\u1ea1ng m\u00e1y t\u00ednh?<\/a><\/p>\n<h2><span id=\"3_Nhung_dac_diem_noi_bat_cua_chuan_Wifi_5\">3\/ Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a chu\u1ea9n Wifi 5<\/span><\/h2>\n<p>Wifi th\u1ebf h\u1ec7 5 \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba \u0111\u1ea7y \u0111\u1ee7 \u01b0u \u0111i\u1ec3m v\u00e0 c\u00e1c t\u00ednh n\u0103ng c\u1ee7a Wifi 4, h\u01a1n n\u1eefa c\u00f2n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt nhi\u1ec1u t\u00ednh n\u0103ng m\u1edbi \u1ea5n t\u01b0\u1ee3ng. Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a chu\u1ea9n Wifi 5 c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/p>\n<h3><span id=\"31_Bang_thong_rong_giup_tang_toc_do_truyen_tai\">3.1\/ B\u0103ng th\u00f4ng r\u1ed9ng gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i<\/span><\/h3>\n<p>Wifi 5 ho\u1ea1t \u0111\u1ed9ng tr\u00ean b\u0103ng t\u1ea7n 5 GHz, \u0111\u1ed9 r\u1ed9ng b\u0103ng th\u00f4ng l\u1edbn, \u0111a d\u1ea1ng l\u1ef1a ch\u1ecdn nh\u01b0: 20 MHz, 40 MHz, 60 MHz, 80 MHz, 120 MHz v\u00e0 160 MHz.<\/p>\n<p>B\u0103ng th\u00f4ng c\u1ee7a Wifi th\u1ebf h\u1ec7 5 t\u1ed1i \u0111a \u0111\u1ea1t t\u1edbi 160 MHz, l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi chu\u1ea9n 802.11n c\u0169. \u0110i\u1ec1u n\u00e0y ngh\u0129a l\u00e0 chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 ho\u1ea1t \u0111\u1ed9ng v\u1edbi s\u1ed1 k\u00eanh truy\u1ec1n \u00edt h\u01a1n nh\u01b0ng cho t\u1ed1c \u0111\u1ed9 truy\u1ec1n nh\u1eadn d\u1eef li\u1ec7u nhanh h\u01a1n.<\/p>\n<h3><span id=\"32_Cong_nghe_Multi_User_da_nguoi_dung\">3.2\/ C\u00f4ng ngh\u1ec7 Multi User \u0111a ng\u01b0\u1eddi d\u00f9ng<\/span><\/h3>\n<p>Wifi 4 c\u0169 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 Single User, ngh\u0129a l\u00e0 ch\u1ec9 m\u1ed9t ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi 1 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c nh\u1eadn truy\u1ec1n d\u1eef li\u1ec7u \u1edf c\u00f9ng 1 th\u1eddi \u0111i\u1ec3m. \u0110i\u1ec1u n\u00e0y khi\u1ebfn t\u1ed1c \u0111\u1ed9 truy\u1ec1n m\u1ea1ng ch\u1eadm \u0111i \u0111\u00e1ng k\u1ec3. Wifi 5 \u0111\u00e3 n\u00e2ng c\u1ea5p th\u00e0nh c\u00f4ng ngh\u1ec7 Multi User cho ph\u00e9p 1 \u0111i\u1ec3m truy c\u1eadp c\u00f3 nhi\u1ec1u anten truy\u1ec1n t\u00edn hi\u1ec7u. Do \u0111\u00f3 c\u00f3 th\u1ec3 nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u truy\u1ec1n tr\u00ean 1 b\u0103ng t\u1ea7n.<\/p>\n<figure id=\"attachment_731\" aria-describedby=\"caption-attachment-731\" style=\"width: 907px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-731\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nhieu-nguoi-dung-su-dung-wifi-5-cung-luc.jpg\" alt=\"Wifi 5 cho ph\u00e9p nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng s\u1eed d\u1ee5ng c\u00f9ng l\u00fac\" width=\"907\" height=\"626\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nhieu-nguoi-dung-su-dung-wifi-5-cung-luc.jpg 907w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nhieu-nguoi-dung-su-dung-wifi-5-cung-luc-300x207.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nhieu-nguoi-dung-su-dung-wifi-5-cung-luc-768x530.jpg 768w\" sizes=\"auto, (max-width: 907px) 100vw, 907px\" \/><figcaption id=\"caption-attachment-731\" class=\"wp-caption-text\">Wifi 5 cho ph\u00e9p nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng s\u1eed d\u1ee5ng c\u00f9ng l\u00fac<\/figcaption><\/figure>\n<h3><span id=\"33_Tam_phu_song_rong\">3.3\/ T\u1ea7m ph\u1ee7 s\u00f3ng r\u1ed9ng<\/span><\/h3>\n<p>Router chu\u1ea9n Wifi 5 c\u00f3 t\u1ea7m ph\u1ee7 s\u00f3ng r\u1ed9ng h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi nh\u1eefng chu\u1ea9n c\u0169, g\u1ea7n nh\u1ea5t l\u00e0 Wifi 4. C\u1ee5 th\u1ec3 t\u1ea7m ph\u1ee7 s\u00f3ng c\u1ee7a Wifi th\u1ebf h\u1ec7 5 l\u00e0 90 m\u00e9t, trong khi chu\u1ea9n Wifi 4 ph\u1ee7 s\u00f3ng r\u1ed9ng t\u1ed1i \u0111a ch\u1ec9 80 m\u00e9t.<\/p>\n<h3><span id=\"34_Cong_nghe_chum_tin_hieu_Beamforming_trung_dich\">3.4\/ C\u00f4ng ngh\u1ec7 ch\u00f9m t\u00edn hi\u1ec7u Beamforming tr\u00fang \u0111\u00edch<\/span><\/h3>\n<p>Thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng chu\u1ea9n Wifi 5 c\u00f3 c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh h\u01b0\u1edbng truy\u1ec1n nh\u1eadn t\u00edn hi\u1ec7u ch\u00f9m Beamforming. Nh\u1edd c\u00f4ng ngh\u1ec7 n\u00e0y m\u00e0 Router c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a thi\u1ebft b\u1ecb nh\u1eadn, c\u1ee5 th\u1ec3 l\u00e0 Laptop, \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng. T\u1eeb \u0111\u00f3 n\u0103ng l\u01b0\u1ee3ng t\u00edn hi\u1ec7u \u0111\u01b0\u1eddng t\u0103ng c\u01b0\u1eddng \u0111\u1ebfn h\u01b0\u1edbng thi\u1ebft b\u1ecb \u0111\u00edch, gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u nhanh v\u00e0 ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<h3><span id=\"35_Ho_tro_nhieu_luong_du_lieu\">3.5\/ H\u1ed7 tr\u1ee3 nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u<\/span><\/h3>\n<p>Lu\u1ed3ng d\u1eef li\u1ec7u (Spatial Stream) trong c\u00e1c chu\u1ea9n m\u1ea1ng \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i b\u1eb1ng c\u00f4ng ngh\u1ec7 MIMO \u0111a anten. Wifi 5 cho ph\u00e9p thi\u1ebft b\u1ecb c\u00f3 t\u1ed1i \u0111a 8 \u0103ng ten c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t \u0111i c\u00f9ng l\u00fac 8 lu\u1ed3ng t\u00edn hi\u1ec7u. \u01afu \u0111i\u1ec3m n\u00e0y cho th\u1ea5y kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 x\u1eed l\u00fd \u0111a lu\u1ed3ng v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a chu\u1ea9n m\u1ea1ng 802.11ac.<\/p>\n<h3><span id=\"36_Co_the_tich_hop_voi_chuan_cu\">3.6\/ C\u00f3 th\u1ec3 t\u00edch h\u1ee3p v\u1edbi chu\u1ea9n c\u0169<\/span><\/h3>\n<p>Router chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 v\u1eabn h\u1ed7 tr\u1ee3 c\u00e1c chu\u1ea9n c\u0169 k\u1ebft h\u1ee3p. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u00f9y ch\u1ecdn s\u1eed d\u1ee5ng b\u0103ng t\u1ea7n 5 GHz (c\u1ee7a chu\u1ea9n Wifi 5) hay b\u0103ng t\u1ea7n 2.4 GHz (c\u1ee7a chu\u1ea9n Wifi 4) ho\u1eb7c ph\u00e1t song song \u0111\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 truy\u1ec1n cao nh\u1ea5t. Nh\u1edd v\u1eady thi\u1ebft b\u1ecb ph\u00e1t c\u00f3 b\u0103ng t\u1ea7n c\u1ed9ng d\u1ed3n l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ph\u00e1t ch\u1ec9 c\u00f3 chu\u1ea9n Wifi 4.<\/p>\n<h2><span id=\"4_Chuan_Wifi_5_80211ac_vuot_troi_hon_chuan_Wifi_4_80211n_nhu_the_nao\">4\/ Chu\u1ea9n Wifi 5 (802.11ac) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n chu\u1ea9n Wifi 4 (802.11n) nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/h2>\n<p>C\u00f3 th\u1ec3 n\u00f3i chu\u1ea9n Wifi 5 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n so v\u1edbi chu\u1ea9n Wifi 4 c\u0169 v\u1ec1 nhi\u1ec1u ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 nh\u01b0 t\u1ed1c \u0111\u1ed9, ph\u1ea1m vi, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch hay gi\u00e1 c\u1ea3. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n<h3><span id=\"41_Xet_ve_toc_do_truyen_du_lieu\">4.1\/ X\u00e9t v\u1ec1 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u<\/span><\/h3>\n<p><strong>Chu\u1ea9n Wifi 4:<\/strong> t\u1ed1c \u0111\u1ed9 truy\u1ec1n th\u1ea5p, t\u1ed1i \u0111a l\u00e0 600 Mb\/s.<\/p>\n<p><strong>Chu\u1ea9n Wifi 5:<\/strong> t\u1ed1c \u0111\u1ed9 truy\u1ec1n nhanh g\u1ea5p 3 l\u1ea7n so v\u1edbi chu\u1ea9n Wifi 4 c\u00f9ng s\u1ed1 lu\u1ed3ng (s\u1ed1 stream) truy\u1ec1n. T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a \u0111\u1ea1t 1730 Mb\/s.<\/p>\n<figure id=\"attachment_728\" aria-describedby=\"caption-attachment-728\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-728\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi5-uu-diem-vuot-troi-hon-wifi-4.jpg\" alt=\"Wifi 5 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i h\u01a1n Wifi 4\" width=\"900\" height=\"485\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi5-uu-diem-vuot-troi-hon-wifi-4.jpg 1021w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi5-uu-diem-vuot-troi-hon-wifi-4-300x162.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi5-uu-diem-vuot-troi-hon-wifi-4-768x414.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-728\" class=\"wp-caption-text\">Wifi 5 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i h\u01a1n Wifi 4<\/figcaption><\/figure>\n<h3><span id=\"42_Xet_ve_tam_phu_song\">4.2\/ X\u00e9t v\u1ec1 t\u1ea7m ph\u1ee7 s\u00f3ng<\/span><\/h3>\n<p><strong>Chu\u1ea9n Wifi 4:<\/strong> ch\u1ec9 \u0111\u1ea1t t\u1ea7m ph\u1ee7 s\u00f3ng t\u1ed1i \u0111a 80 m\u00e9t.<\/p>\n<p><strong>Chu\u1ea9n Wifi 5:<\/strong> T\u1ea7m ph\u1ee7 s\u00f3ng r\u1ed9ng t\u1ed1i \u0111a 90 m\u00e9t.<\/p>\n<h3><span id=\"43_Xet_ve_kha_nang_tuong_thich\">4.3\/ X\u00e9t v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/span><\/h3>\n<p><strong>Chu\u1ea9n Wifi 4:<\/strong> T\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 Wifi 4 (802.11g).<\/p>\n<p><strong>Chu\u1ea9n Wifi 5:<\/strong> T\u01b0\u01a1ng th\u00edch v\u1edbi c\u1ea3 thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 Wifi th\u1ebf h\u1ec7 th\u1ee9 5 l\u1eabn c\u00e1c chu\u1ea9n c\u0169, g\u1ed3m c\u1ea3 b\/g\/n.<\/p>\n<h3><span id=\"44_Xet_ve_pham_vi_truyen_du_lieu\">4.4\/ X\u00e9t v\u1ec1 ph\u1ea1m vi truy\u1ec1n d\u1eef li\u1ec7u<\/span><\/h3>\n<p><strong>Chu\u1ea9n Wifi 4:<\/strong> Ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c tr\u00ean c\u1ea3 hai b\u0103ng t\u1ea7n 2.4 GHz v\u00e0 5 GHz. Router h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean b\u0103ng t\u1ea7n k\u00e9p th\u00ec c\u1ea3 hai b\u0103ng t\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t s\u00f3ng c\u00f9ng nhau.<\/p>\n<p><strong>Chu\u1ea9n Wifi 5:<\/strong> Ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c tr\u00ean c\u1ea3 hai b\u0103ng t\u1ea7n 2.4 GHz v\u00e0 5 GHz. Router ch\u1ea1y 2 b\u0103ng t\u1ea7n c\u00f9ng l\u00fac th\u00ec s\u1ebd chia ra b\u0103ng t\u1ea7n 2.4 GHz ph\u00e1t wifi n, b\u0103ng t\u1ea7n 5 GHz ph\u00e1t wifi ac.<\/p>\n<h3><span id=\"45_Xet_ve_gia_ca\">4.5\/ X\u00e9t v\u1ec1 gi\u00e1 c\u1ea3<\/span><\/h3>\n<p>Chu\u1ea9n Wifi 4 c\u00f3 gi\u00e1 th\u00e0nh r\u1ebb h\u01a1n so v\u1edbi chu\u1ea9n Wifi 5 do ra \u0111\u1eddi tr\u01b0\u1edbc v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn. Gi\u00e1 th\u00e0nh c\u1ee7a chu\u1ea9n Wifi 5 s\u1ebd gi\u1ea3m d\u1ea7n khi \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn h\u01a1n.<\/p>\n<p>C\u00f3 th\u1ec3 th\u1ea5y chu\u1ea9n Wifi 5 ph\u00e1t tri\u1ec3n v\u00e0 c\u1ea3i ti\u1ebfn t\u1eeb phi\u00ean b\u1ea3n ti\u1ec1n nhi\u1ec7m n\u00ean s\u1edf h\u1eefu \u0111\u1ea7y \u0111\u1ee7 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a chu\u1ea9n c\u0169 Wifi 4. H\u01a1n n\u1eefa chu\u1ea9n m\u1edbi c\u00f3 l\u1ee3i th\u1ebf v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng chuy\u1ec3n v\u00f9ng linh ho\u1ea1t h\u01a1n nhi\u1ec1u. S\u1eed d\u1ee5ng chu\u1ea9n Wifi th\u1ebf h\u1ec7 th\u1ee9 5 m\u1edbi v\u1eabn c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi chu\u1ea9n c\u0169, \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng s\u1eed d\u1ee5ng v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 truy\u1ec1n.<\/p>\n<p><strong>&gt;&gt;&gt; Xem th\u00eam: <\/strong><a href=\"https:\/\/vtechsolutions.vn\/blog\/chuan-wifi-6-la-gi\/\">Chu\u1ea9n Wifi 6 (802.11ax) l\u00e0 g\u00ec? So s\u00e1nh chu\u1ea9n wifi 6 v\u00e0 wifi 5<\/a><\/p>\n<figure id=\"attachment_729\" aria-describedby=\"caption-attachment-729\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-729\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-mang-den-toc-do-toi-uu-hon.jpg\" alt=\"WIFI 5 mang \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 t\u1ed1i \u01b0u h\u01a1n\" width=\"800\" height=\"800\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-mang-den-toc-do-toi-uu-hon.jpg 800w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-mang-den-toc-do-toi-uu-hon-300x300.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-mang-den-toc-do-toi-uu-hon-150x150.jpg 150w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi-5-mang-den-toc-do-toi-uu-hon-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-729\" class=\"wp-caption-text\">Wifi 5 \u0111em \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m m\u1ea1ng t\u1ed1i \u01b0u h\u01a1n<\/figcaption><\/figure>\n<p>M\u1eb7c d\u00f9 v\u1eady Wifi th\u1ebf h\u1ec7 5 s\u1ebd \u0111\u1ea1t kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng t\u1ed1i \u01b0u nh\u1ea5t tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng h\u1ed7 tr\u1ee3 cho n\u00f3. Trong khi \u0111\u00f3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a Vi\u1ec7t Nam hi\u1ec7n ch\u01b0a ph\u00e1t tri\u1ec3n \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng chu\u1ea9n Wifi 5, do v\u1eady t\u1ed1c \u0111\u1ed9 truy\u1ec1n ch\u01b0a \u0111\u1ea1t m\u1ee9c cao t\u1ed1i \u0111a tr\u00ean 1 Gbps. M\u1eb7c d\u00f9 v\u1eady th\u00ec chu\u1ea9n m\u1ea1ng m\u1edbi n\u00e0y v\u1eabn ph\u00f9 h\u1ee3p cho m\u1ea1ng gia \u0111\u00ecnh, v\u0103n ph\u00f2ng, c\u01a1 s\u1edf kinh doanh,&#8230; Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 tr\u1ea3i nghi\u1ec7m t\u1ed1c \u0111\u1ed9 m\u1ea1ng nhanh, l\u00e0m vi\u1ec7c m\u01b0\u1ee3t m\u00e0 h\u01a1n.<\/p>\n<p>Nh\u01b0 v\u1eady chu\u1ea9n Wifi th\u1ebf h\u1ec7 5 c\u00f4ng ngh\u1ec7 m\u1edbi v\u1edbi nhi\u1ec1u c\u1ea3i ti\u1ebfn v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n so v\u1edbi chu\u1ea9n Wifi 4 c\u0169 \u0111ang d\u00f9ng ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Tin r\u1eb1ng trong t\u01b0\u01a1ng lai g\u1ea7n c\u00f4ng ngh\u1ec7 m\u1ea1ng m\u1edbi n\u00e0y s\u1ebd s\u1edbm ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam. N\u1ebfu c\u00f3 th\u1eafc m\u1eafc kh\u00e1c v\u1ec1 chu\u1ea9n Wifi 5 c\u0169ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng, h\u00e3y li\u00ean h\u1ec7 v\u1edbi VTech \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nh\u00e9.<\/p>\n<p><strong>Tham kh\u1ea3o th\u00eam:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/phan-biet-su-khac-nhau-giua-access-point-router-va-modem\/#4_So_sanh_su_khac_biet_giua_Access_Point_Router_va_Modem\">So s\u00e1nh s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa Access Point, Router v\u00e0 Modem<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/so-do-he-thong-mang-la-gi\/#4_4_loai_so_do_mang_co_ban_va_uu_nhuoc_diem_tung_loai\">4 lo\u1ea1i s\u01a1 \u0111\u1ed3 m\u1ea1ng c\u01a1 b\u1ea3n v\u00e0 \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m t\u1eebng lo\u1ea1i<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/quy-trinh-lap-dat-he-thong-mang\/#3_Nhung_luu_y_khi_lap_dat_he_thong_mang\">Nh\u1eefng l\u01b0u \u00fd khi l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng m\u1ea1ng<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Chu\u1ea9n Wifi 5 (802.11 ac) l\u00e0 c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00f4ng d\u00e2y m\u1edbi ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Wifi th\u1ebf h\u1ec7 th\u1ee9 5 c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng v\u00e0 \u01b0u \u0111i\u1ec3m<\/p>\n","protected":false},"author":1,"featured_media":728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181,5],"tags":[],"class_list":["post-641","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-he-thong-thiet-bi-mang","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Chu\u1ea9n Wifi 5 (802.11ac) l\u00e0 g\u00ec? Chu\u1ea9n Wifi 5 h\u01a1n g\u00ec so v\u1edbi Wifi 4?<\/title>\n<meta name=\"description\" content=\"Chu\u1ea9n Wifi 5 (802.11ac) l\u00e0 g\u00ec? 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C\u00f4ng ngh\u1ec7 m\u1ea1ng Wifi th\u1ebf h\u1ec7 5 c\u00f3 c\u1ea3i ti\u1ebfn g\u00ec v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi c\u00f4ng ngh\u1ec7 Wifi th\u1ebf h\u1ec7 4?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vtechsolutions.vn\/blog\/cong-nghe-chuan-wifi-5-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"VTech Solutions\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-14T10:17:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-25T02:52:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/wifi5-uu-diem-vuot-troi-hon-wifi-4.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1021\" \/>\n\t<meta property=\"og:image:height\" content=\"550\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"adminVtech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"adminVtech\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"12 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/cong-nghe-chuan-wifi-5-la-gi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/cong-nghe-chuan-wifi-5-la-gi\/\"},\"author\":{\"name\":\"adminVtech\",\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/#\/schema\/person\/5b468e8e6d63d28ea4323d7a9b675cfd\"},\"headline\":\"Chu\u1ea9n Wifi 5 (802.11ac) l\u00e0 g\u00ec? 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