{"id":525501,"date":"2026-01-29T14:51:42","date_gmt":"2026-01-29T07:51:42","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=525501"},"modified":"2026-01-29T14:51:42","modified_gmt":"2026-01-29T07:51:42","slug":"wifi-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/wifi-la-gi\/","title":{"rendered":"WiFi l\u00e0 g\u00ec? Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c chu\u1ea9n WiFi v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft"},"content":{"rendered":"

WiFi l\u00e0 g\u00ec l\u00e0 c\u00e2u h\u1ecfi quen thu\u1ed9c v\u1edbi h\u1ea7u h\u1ebft ng\u01b0\u1eddi d\u00f9ng c\u00f4ng ngh\u1ec7 hi\u1ec7n nay, \u0111\u1eb7c bi\u1ec7t khi WiFi \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong h\u1ecdc t\u1eadp, l\u00e0m vi\u1ec7c v\u00e0 gi\u1ea3i tr\u00ed. Nh\u1edd WiFi, ch\u00fang ta c\u00f3 th\u1ec3 truy c\u1eadp Internet m\u1ecdi l\u00fac, m\u1ecdi n\u01a1i m\u00e0 kh\u00f4ng c\u1ea7n d\u00e2y c\u00e1p r\u01b0\u1eddm r\u00e0. T\u1eeb \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh x\u00e1ch tay \u0111\u1ebfn tivi th\u00f4ng minh hay thi\u1ebft b\u1ecb nh\u00e0 th\u00f4ng minh, t\u1ea5t c\u1ea3 \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ea1ng WiFi \u0111\u1ec3 v\u1eadn h\u00e0nh m\u01b0\u1ee3t m\u00e0. V\u1eady WiFi th\u1ef1c ch\u1ea5t l\u00e0 g\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?\u00a0<\/span><\/p>\n

WiFi l\u00e0 g\u00ec?<\/span><\/h2>\n

WiFi l\u00e0 c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00f4ng d\u00e2y cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed k\u1ebft n\u1ed1i Internet ho\u1eb7c k\u1ebft n\u1ed1i v\u1edbi nhau th\u00f4ng qua s\u00f3ng v\u00f4 tuy\u1ebfn. WiFi ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean chu\u1ea9n IEEE 802.11 v\u00e0 s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1 ph\u1ed5 bi\u1ebfn l\u00e0 2.4GHz, 5GHz ho\u1eb7c 6GHz \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u. Thay v\u00ec ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1p m\u1ea1ng v\u1eadt l\u00fd, ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb v\u1edbi b\u1ed9 ph\u00e1t WiFi (router) l\u00e0 c\u00f3 th\u1ec3 truy c\u1eadp Internet m\u1ed9t c\u00e1ch nhanh ch\u00f3ng. Nh\u1edd t\u00ednh ti\u1ec7n l\u1ee3i, linh ho\u1ea1t v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng, WiFi hi\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong gia \u0111\u00ecnh, v\u0103n ph\u00f2ng, qu\u00e1n c\u00e0 ph\u00ea, tr\u01b0\u1eddng h\u1ecdc v\u00e0 nhi\u1ec1u kh\u00f4ng gian c\u00f4ng c\u1ed9ng kh\u00e1c.<\/span><\/p>\n

\"wifi-la-gi-2\"<\/picture><\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng WiFi<\/span><\/h2>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng WiFi l\u00e0 g\u00ec v\u1ec1 b\u1ea3n ch\u1ea5t d\u1ef1a tr\u00ean vi\u1ec7c truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u b\u1eb1ng s\u00f3ng v\u00f4 tuy\u1ebfn. Tr\u01b0\u1edbc ti\u00ean, \u0111\u01b0\u1eddng truy\u1ec1n Internet t\u1eeb nh\u00e0 m\u1ea1ng s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u1ebfn modem ho\u1eb7c router WiFi. Thi\u1ebft b\u1ecb n\u00e0y c\u00f3 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u Internet c\u00f3 d\u00e2y th\u00e0nh s\u00f3ng WiFi v\u00e0 ph\u00e1t ra m\u00f4i tr\u01b0\u1eddng xung quanh.<\/span><\/p>\n

\"wifi-la-gi-3\"<\/picture><\/p>\n

Khi c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u0111i\u1ec7n tho\u1ea1i, laptop hay m\u00e1y t\u00ednh b\u1ea3ng b\u1eadt WiFi, ch\u00fang s\u1ebd d\u00f2 t\u00ecm v\u00e0 k\u1ebft n\u1ed1i \u0111\u1ebfn router th\u00f4ng qua s\u00f3ng v\u00f4 tuy\u1ebfn ph\u00f9 h\u1ee3p. D\u1eef li\u1ec7u t\u1eeb thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, g\u1eedi \u0111\u1ebfn router, sau \u0111\u00f3 truy\u1ec1n ra Internet v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra trong th\u1eddi gian r\u1ea5t ng\u1eafn, gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 c\u1ea3m gi\u00e1c truy c\u1eadp Internet t\u1ee9c th\u00ec. Ph\u1ea1m vi v\u00e0 t\u1ed1c \u0111\u1ed9 WiFi ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng su\u1ea5t router, chu\u1ea9n WiFi s\u1eed d\u1ee5ng c\u0169ng nh\u01b0 v\u1eadt c\u1ea3n trong kh\u00f4ng gian.<\/span><\/p>\n

C\u00e1c chu\u1ea9n WiFi ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/span><\/h2>\n

\u0110\u1ec3 hi\u1ec3u r\u00f5 WIFI l\u00e0 g\u00ec v\u00e0 v\u00ec sao t\u1ed1c \u0111\u1ed9 m\u1ea1ng \u1edf m\u1ed7i thi\u1ebft b\u1ecb l\u1ea1i kh\u00e1c nhau, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n n\u1eafm \u0111\u01b0\u1ee3c c\u00e1c chu\u1ea9n WiFi ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. M\u1ed7i chu\u1ea9n WiFi \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ebf h\u1ec7 c\u00f4ng ngh\u1ec7, quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac.\u00a0<\/span><\/p>\n

Chu\u1ea9n WiFi 4 (802.11n)<\/span><\/h3>\n

WiFi 4, hay c\u00f2n g\u1ecdi l\u00e0 chu\u1ea9n 802.11n, l\u00e0 m\u1ed9t trong nh\u1eefng chu\u1ea9n WiFi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a Internet kh\u00f4ng d\u00e2y. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 chu\u1ea9n WiFi m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi ti\u1ebfp x\u00fac \u0111\u1ea7u ti\u00ean t\u1ea1i gia \u0111\u00ecnh ho\u1eb7c v\u0103n ph\u00f2ng nh\u1ecf. WiFi 4 ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu tr\u00ean b\u0103ng t\u1ea7n 2.4GHz v\u00e0 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 th\u00eam 5GHz trong m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb.<\/span><\/p>\n

\"wifi-la-gi-4\"<\/picture><\/p>\n

T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a l\u00fd thuy\u1ebft c\u1ee7a WiFi 4 \u0111\u1ea1t kho\u1ea3ng 600 Mbps, tuy nhi\u00ean trong \u0111i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf th\u01b0\u1eddng th\u1ea5p h\u01a1n do nhi\u1ec5u s\u00f3ng v\u00e0 v\u1eadt c\u1ea3n. \u01afu \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a chu\u1ea9n n\u00e0y l\u00e0 ph\u1ea1m vi ph\u1ee7 s\u00f3ng r\u1ed9ng, xuy\u00ean t\u01b0\u1eddng t\u1ed1t v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb c\u0169. Tuy nhi\u00ean, do b\u0103ng t\u1ea7n 2.4GHz d\u1ec5 b\u1ecb nhi\u1ec5u t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c, WiFi 4 kh\u00f3 \u0111\u00e1p \u1ee9ng t\u1ed1t nhu c\u1ea7u s\u1eed d\u1ee5ng Internet t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n nay, \u0111\u1eb7c bi\u1ec7t khi c\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f9ng l\u00fac.<\/span><\/p>\n

Chu\u1ea9n WiFi 5 (802.11ac)<\/span><\/h3>\n

WiFi 5 l\u00e0 b\u01b0\u1edbc n\u00e2ng c\u1ea5p quan tr\u1ecdng gi\u00fap ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u r\u00f5 h\u01a1n WIFI l\u00e0 g\u00ec trong k\u1ef7 nguy\u00ean Internet t\u1ed1c \u0111\u1ed9 cao. Chu\u1ea9n WiFi n\u00e0y ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu tr\u00ean b\u0103ng t\u1ea7n 5GHz, mang l\u1ea1i t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n v\u00e0 gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u00ecnh tr\u1ea1ng nhi\u1ec5u s\u00f3ng. T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a c\u1ee7a WiFi 5 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn 3.5 Gbps trong \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng.<\/span><\/p>\n

\"wifi-la-gi-5\"<\/picture><\/p>\n

M\u1ed9t \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a WiFi 5 l\u00e0 c\u00f4ng ngh\u1ec7 MU-MIMO, cho ph\u00e9p router giao ti\u1ebfp v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac thay v\u00ec l\u1ea7n l\u01b0\u1ee3t nh\u01b0 c\u00e1c chu\u1ea9n c\u0169. Nh\u1edd \u0111\u00f3, tr\u1ea3i nghi\u1ec7m xem video 4K, ch\u01a1i game online hay h\u1ecdp tr\u1ef1c tuy\u1ebfn tr\u1edf n\u00ean m\u01b0\u1ee3t m\u00e0 h\u01a1n. Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a WiFi 5 l\u00e0 ph\u1ea1m vi ph\u1ee7 s\u00f3ng ng\u1eafn h\u01a1n so v\u1edbi WiFi 4 v\u00e0 kh\u1ea3 n\u0103ng xuy\u00ean t\u01b0\u1eddng k\u00e9m h\u01a1n do s\u1eed d\u1ee5ng b\u0103ng t\u1ea7n cao.<\/span><\/p>\n

Chu\u1ea9n WiFi 6 (802.11ax)<\/span><\/h3>\n

WiFi 6 l\u00e0 chu\u1ea9n WiFi hi\u1ec7n \u0111\u1ea1i, gi\u00fap \u0111\u1ecbnh ngh\u0129a l\u1ea1i kh\u00e1i ni\u1ec7m WIFI l\u00e0 g\u00ec trong m\u00f4i tr\u01b0\u1eddng c\u00f3 m\u1eadt \u0111\u1ed9 thi\u1ebft b\u1ecb cao. Chu\u1ea9n n\u00e0y h\u1ed7 tr\u1ee3 c\u1ea3 hai b\u0103ng t\u1ea7n 2.4GHz v\u00e0 5GHz, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t so v\u1edbi WiFi 5. T\u1ed1c \u0111\u1ed9 l\u00fd thuy\u1ebft c\u1ee7a WiFi 6 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn 9.6 Gbps.<\/span><\/p>\n

\"wifi-la-gi-6\"<\/picture><\/p>\n

WiFi 6 n\u1ed5i b\u1eadt v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 OFDMA v\u00e0 MU-MIMO c\u1ea3i ti\u1ebfn, cho ph\u00e9p nhi\u1ec1u thi\u1ebft b\u1ecb truy c\u1eadp m\u1ea1ng c\u00f9ng l\u00fac m\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi gia \u0111\u00ecnh th\u00f4ng minh, v\u0103n ph\u00f2ng l\u1edbn ho\u1eb7c chung c\u01b0 \u0111\u00f4ng ng\u01b0\u1eddi. Ngo\u00e0i ra, WiFi 6 c\u00f2n gi\u00fap ti\u1ebft ki\u1ec7m pin cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng nh\u1edd c\u01a1 ch\u1ebf qu\u1ea3n l\u00fd truy\u1ec1n d\u1eef li\u1ec7u th\u00f4ng minh. Nh\u01b0\u1ee3c \u0111i\u1ec3m duy nh\u1ea5t l\u00e0 y\u00eau c\u1ea7u thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i ph\u1ea3i h\u1ed7 tr\u1ee3 WiFi 6 \u0111\u1ec3 ph\u00e1t huy t\u1ed1i \u0111a hi\u1ec7u qu\u1ea3.<\/span><\/p>\n

Chu\u1ea9n WiFi 6E v\u00e0 WiFi 7 (th\u1ebf h\u1ec7 m\u1edbi)<\/span><\/h3>\n

Khi t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n WIFI l\u00e0 g\u00ec, ng\u01b0\u1eddi d\u00f9ng s\u1ebd g\u1eb7p c\u00e1c chu\u1ea9n WiFi th\u1ebf h\u1ec7 m\u1edbi nh\u01b0 WiFi 6E v\u00e0 WiFi 7. WiFi 6E m\u1edf r\u1ed9ng th\u00eam b\u0103ng t\u1ea7n 6GHz, gi\u00fap gi\u1ea3m t\u1eafc ngh\u1ebdn m\u1ea1ng v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i \u0111\u00e1ng k\u1ec3. Trong khi \u0111\u00f3, WiFi 7 \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng mang l\u1ea1i t\u1ed1c \u0111\u1ed9 v\u01b0\u1ee3t tr\u1ed9i l\u00ean \u0111\u1ebfn h\u00e0ng ch\u1ee5c Gbps c\u00f9ng \u0111\u1ed9 tr\u1ec5 c\u1ef1c th\u1ea5p.<\/span><\/p>\n

\"wifi-la-gi-7\"<\/picture><\/p>\n

C\u00e1c chu\u1ea9n WiFi n\u00e0y h\u01b0\u1edbng \u0111\u1ebfn nhu c\u1ea7u s\u1eed d\u1ee5ng Internet cao c\u1ea5p nh\u01b0 ch\u01a1i game \u0111\u00e1m m\u00e2y, th\u1ef1c t\u1ebf \u1ea3o (VR), th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng (AR) v\u00e0 h\u1ec7 sinh th\u00e1i nh\u00e0 th\u00f4ng minh to\u00e0n di\u1ec7n. Tuy nhi\u00ean, do chi ph\u00ed thi\u1ebft b\u1ecb c\u00f2n cao v\u00e0 ch\u01b0a ph\u1ed5 bi\u1ebfn r\u1ed9ng r\u00e3i, WiFi 6E v\u00e0 WiFi 7 hi\u1ec7n ch\u1ee7 y\u1ebfu xu\u1ea5t hi\u1ec7n \u1edf ph\u00e2n kh\u00fac cao c\u1ea5p.<\/span><\/p>\n

Vi\u1ec7t Nam hi\u1ec7n nay \u0111ang s\u1eed d\u1ee5ng chu\u1ea9n WiFi n\u00e0o?<\/span><\/h2>\n

Hi\u1ec7n nay \u1edf Vi\u1ec7t Nam, khi n\u00f3i \u0111\u1ebfn WIFI l\u00e0 g\u00ec v\u00e0 c\u00e1c chu\u1ea9n WiFi ph\u1ed5 bi\u1ebfn, h\u1ea7u h\u1ebft h\u1ed9 gia \u0111\u00ecnh, v\u0103n ph\u00f2ng v\u00e0 khu c\u00f4ng c\u1ed9ng \u0111\u1ec1u s\u1eed d\u1ee5ng chu\u1ea9n WiFi 5 (802.11ac) v\u00e0 WiFi 6 (802.11ax) tr\u00ean c\u00e1c router v\u00e0 thi\u1ebft b\u1ecb truy c\u1eadp Internet. WiFi 5 v\u1eabn c\u00f2n r\u1ea5t ph\u1ed5 bi\u1ebfn do gi\u00e1 th\u00e0nh thi\u1ebft b\u1ecb h\u1ee3p l\u00fd, kh\u1ea3 n\u0103ng cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u xem video HD, l\u01b0\u1edbt web v\u00e0 h\u1ecdc tr\u1ef1c tuy\u1ebfn. Tuy nhi\u00ean v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng Internet ng\u00e0y c\u00e0ng t\u0103ng, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c gia \u0111\u00ecnh c\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f9ng l\u00fac, chu\u1ea9n WiFi 6 \u0111ang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec h\u1ed7 tr\u1ee3 k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh h\u01a1n, t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 t\u1ed1t trong kh\u00f4ng gian \u0111\u00f4ng thi\u1ebft b\u1ecb.<\/span><\/p>\n

\"wifi-la-gi-8\"<\/picture><\/p>\n

\u1ede c\u00e1c tuy\u1ebfn Internet c\u00f4ng c\u1ed9ng nh\u01b0 qu\u00e1n c\u00e0 ph\u00ea, kh\u00e1ch s\u1ea1n, trung t\u00e2m th\u01b0\u01a1ng m\u1ea1i, WiFi 5 v\u1eabn chi\u1ebfm \u01b0u th\u1ebf do \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed th\u1ea5p; nh\u01b0ng trong c\u00e1c khu \u0111\u00f4 th\u1ecb l\u1edbn nh\u01b0 H\u00e0 N\u1ed9i, TP.HCM, Quy Nh\u01a1n, \u0110\u00e0 N\u1eb5ng\u2026 nhi\u1ec1u n\u01a1i \u0111\u00e3 trang b\u1ecb router h\u1ed7 tr\u1ee3 WiFi 6 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u cao h\u01a1n. Chu\u1ea9n WiFi m\u1edbi nh\u01b0 WiFi 6E c\u0169ng b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n nh\u01b0ng c\u00f2n h\u1ea1n ch\u1ebf do thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 ch\u01b0a ph\u1ed5 bi\u1ebfn v\u00e0 chi ph\u00ed cao. <\/span>T\u00f3m l\u1ea1i, Vi\u1ec7t Nam hi\u1ec7n nay \u0111ang s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu hai chu\u1ea9n WiFi ch\u00ednh l\u00e0 WiFi 5 v\u00e0 WiFi 6, d\u1ea7n d\u1ecbch chuy\u1ec3n v\u1ec1 chu\u1ea9n m\u1edbi h\u01a1n t\u00f9y theo nhu c\u1ea7u t\u1ed1c \u0111\u1ed9 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i.\u00a0<\/span><\/p>\n

Chu\u1ea9n WiFi th\u1ebf h\u1ec7 m\u1edbi nh\u1ea5t l\u00e0 g\u00ec?<\/span><\/h2>\n

Chu\u1ea9n WiFi th\u1ebf h\u1ec7 m\u1edbi nh\u1ea5t \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u00e0 WiFi 7 (802.11be). Chu\u1ea9n WiFi n\u00e0y \u0111\u00e1nh d\u1ea5u b\u01b0\u1edbc ti\u1ebfn l\u1edbn trong vi\u1ec7c n\u00e2ng cao tr\u1ea3i nghi\u1ec7m Internet kh\u00f4ng d\u00e2y, gi\u00fap ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u r\u00f5 h\u01a1n WIFI l\u00e0 g\u00ec trong k\u1ef7 nguy\u00ean k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 si\u00eau cao. WiFi 7 h\u1ed7 tr\u1ee3 b\u0103ng t\u1ea7n 2.4GHz, 5GHz v\u00e0 6GHz, cho t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u l\u00ean \u0111\u1ebfn h\u00e0ng ch\u1ee5c Gbps, \u0111\u1ed9 tr\u1ec5 c\u1ef1c th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh cho nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f9ng l\u00fac. Chu\u1ea9n n\u00e0y \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi game online, th\u1ef1c t\u1ebf \u1ea3o, nh\u00e0 th\u00f4ng minh v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 cao.\u00a0<\/span><\/p>\n

\"wifi-la-gi-9\"<\/picture><\/p>\n

WiFi c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi kh\u00f4ng?<\/span><\/h2>\n

Nhi\u1ec1u ng\u01b0\u1eddi th\u1eafc m\u1eafc WIFI l\u00e0 g\u00ec v\u00e0 li\u1ec7u s\u00f3ng WiFi c\u00f3 g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi hay kh\u00f4ng. Theo c\u00e1c t\u1ed5 ch\u1ee9c y t\u1ebf v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc hi\u1ec7n nay, s\u00f3ng WiFi l\u00e0 s\u00f3ng v\u00f4 tuy\u1ebfn c\u00f3 c\u00f4ng su\u1ea5t th\u1ea5p, kh\u00f4ng ph\u1ea3i b\u1ee9c x\u1ea1 ion h\u00f3a n\u00ean kh\u00f4ng g\u00e2y t\u1ed5n th\u01b0\u01a1ng t\u1ebf b\u00e0o hay DNA c\u1ee7a con ng\u01b0\u1eddi. M\u1ee9c b\u1ee9c x\u1ea1 t\u1eeb router WiFi trong gia \u0111\u00ecnh th\u1ea5p h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi ng\u01b0\u1ee1ng cho ph\u00e9p v\u00e0 th\u1ea5p h\u01a1n c\u1ea3 s\u00f3ng ph\u00e1t ra t\u1eeb \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng khi s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean.<\/span><\/p>\n

\"wifi-la-gi-10\"<\/picture><\/p>\n

Tuy ch\u01b0a c\u00f3 b\u1eb1ng ch\u1ee9ng khoa h\u1ecdc r\u00f5 r\u00e0ng cho th\u1ea5y WiFi g\u00e2y h\u1ea1i s\u1ee9c kh\u1ecfe, ng\u01b0\u1eddi d\u00f9ng v\u1eabn n\u00ean s\u1eed d\u1ee5ng h\u1ee3p l\u00fd nh\u01b0 \u0111\u1eb7t router \u1edf v\u1ecb tr\u00ed th\u00f4ng tho\u00e1ng, tr\u00e1nh \u0111\u1eb7t qu\u00e1 g\u1ea7n n\u01a1i ng\u1ee7 v\u00e0 t\u1eaft WiFi khi kh\u00f4ng c\u1ea7n thi\u1ebft. Nh\u1eefng th\u00f3i quen n\u00e0y gi\u00fap y\u00ean t\u00e2m h\u01a1n trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/span><\/p>\n

Nguy\u00ean nh\u00e2n khi\u1ebfn WiFi ch\u1eadp ch\u1eddn, y\u1ebfu s\u00f3ng<\/span><\/h2>\n

Khi \u0111\u00e3 hi\u1ec3u WIFI l\u00e0 g\u00ec, ng\u01b0\u1eddi d\u00f9ng s\u1ebd d\u1ec5 d\u00e0ng nh\u1eadn bi\u1ebft c\u00e1c nguy\u00ean nh\u00e2n khi\u1ebfn WiFi ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng l\u00fd do ph\u1ed5 bi\u1ebfn khi\u1ebfn WiFi ch\u1eadp ch\u1eddn, y\u1ebfu s\u00f3ng:<\/span><\/p>\n