{"id":3358,"date":"2015-07-30T14:04:07","date_gmt":"2015-07-30T07:04:07","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=3358"},"modified":"2017-09-27T14:29:32","modified_gmt":"2017-09-27T07:29:32","slug":"nasa-phat-trien-chip-wifi-phan-xa-co-muc-tieu-thu-nang-luong-it-hon-100-lan-so-voi-truyen-thong","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nasa-phat-trien-chip-wifi-phan-xa-co-muc-tieu-thu-nang-luong-it-hon-100-lan-so-voi-truyen-thong\/","title":{"rendered":"NASA ph\u00e1t tri\u1ec3n chip WiFi ph\u1ea3n x\u1ea1 c\u00f3 m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng \u00edt h\u01a1n 100 l\u1ea7n so v\u1edbi truy\u1ec1n th\u1ed1ng"},"content":{"rendered":"

Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u1ebfn t\u1eeb c\u01a1 quan h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 Hoa K\u1ef3 (NASA) v\u00e0 \u0110\u1ea1i h\u1ecdc California (UCLA) \u0111ang ph\u00e1t tri\u1ec3n m\u1ed9t con chip wifi m\u1edbi v\u1edbi kh\u1ea3 n\u0103ng ph\u00e1t t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n, \u00edt ti\u00eau th\u1ee5 \u0111i\u1ec7n v\u00e0 cho t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i cao h\u01a1n, h\u1ee9a h\u1eb9n s\u1ebd \u0111\u01b0\u1ee3c trang b\u1ecb cho c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng, thi\u1ebft b\u1ecb \u0111eo trong t\u01b0\u01a1ng lai.<\/strong><\/p>\n

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Nh\u00e0 nghi\u00ean c\u1ee9u Adrian Tang t\u1ea1i Ph\u00f2ng th\u00ed nghi\u1ec7m s\u1ee9c \u0111\u1ea9y ph\u1ea3n l\u1ef1c c\u1ee7a NASA, m\u1ed9t th\u00e0nh vi\u00ean trong nh\u00f3m cho bi\u1ebft: “\u00dd t\u01b0\u1edfng \u1edf \u0111\u00e2y l\u00e0 n\u1ebfu thi\u1ebft b\u1ecb \u0111eo ch\u1ec9 c\u1ea7n ph\u1ea3n x\u1ea1 l\u1ea1i t\u00edn hi\u1ec7u wifi t\u1eeb router ho\u1eb7c c\u1ed9t ph\u00e1t s\u00f3ng thay v\u00ec t\u1ea1o ra n\u00f3, m\u1ee9c ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng s\u1ebd gi\u1ea3m \u0111i \u0111\u00e1ng k\u1ec3 trong khi th\u1eddi l\u01b0\u1ee3ng pin s\u1ebd t\u0103ng l\u00ean. Do b\u1ea1n ch\u1ec9 c\u1ea7n b\u00e1m v\u00e0o t\u00edn hi\u1ec7u wifi c\u00f3 s\u1eb5n m\u00e0 kh\u00f4ng t\u1ea1o ra n\u00f3, n\u00ean b\u1ea1n s\u1ebd kh\u00f4ng c\u1ea7n n\u0103ng l\u01b0\u1ee3ng.”<\/p>\n

Nh\u1eefng chi\u1ebfc smartphone th\u00f4ng th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch g\u1edfi t\u00edn hi\u1ec7u t\u1edbi router, v\u00e0 router s\u1ebd ph\u1ea3n h\u1ed3i l\u1ea1i b\u1eb1ng m\u1ed9t t\u00edn hi\u1ec7u m\u1edbi. Ng\u01b0\u1ee3c l\u1ea1i, lo\u1ea1i chip wifi m\u1edbi th\u1eadt ra ch\u1ec9 ph\u1ea3n x\u1ea1 l\u1ea1i t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c g\u1edfi t\u1eeb m\u1ed9t router chuy\u00ean d\u1ee5ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i t\u1ef1 g\u1edfi t\u00edn hi\u1ec7u ri\u00eang. M\u1eb7t d\u00f9 c\u00f3 m\u1ee9c ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng th\u1ea5p nh\u01b0ng th\u1ebf h\u1ec7 chip m\u1edbi v\u1eabn \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u. Trong m\u1ed9t th\u1eed nghi\u1ec7m, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 t\u00edch h\u1ee3p n\u00f3 v\u00e0o trong 1 thi\u1ebft b\u1ecb \u0111eo v\u00e0 th\u1eed kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i file. K\u1ebft qu\u1ea3 cho th\u1ea5y t\u1ed1c \u0111\u1ed9 \u0111\u00e3 \u0111\u1ea1t m\u1ed1c 330 Mbps (kho\u1ea3ng 40 MB\/s).<\/p>\n

Gi\u00e1o s\u01b0 Tang cho bi\u1ebft th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a c\u00f4ng ngh\u1ec7 chip m\u1edbi l\u00e0 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u00e2u l\u00e0 t\u00edn hi\u1ec7u ph\u1ea3n h\u1ed3i l\u1ea7n \u0111\u1ea7u ti\u00ean, c\u00f2n \u0111\u00e2u l\u00e0 t\u00edn hi\u1ec7u ph\u1ea3n h\u1ed3i x\u1ea1 l\u1ea1i t\u1eeb c\u00e1c v\u1eadt c\u1ea3n trong ph\u00f2ng. \u00d4ng gi\u1ea3i th\u00edch: “Khi b\u1ea1n g\u1edfi m\u1ed9t t\u00edn hi\u1ec7u t\u1edbi m\u1ed9t c\u0103n ph\u00f2ng, to\u00e0n b\u1ed9 c\u0103n ph\u00f2ng s\u1ebd ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i b\u1ea1n. N\u00ean b\u1ea1n c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1i g\u00ec \u0111\u1ebfn chip, c\u00e1i g\u00ec \u0111i t\u1eeb chip v\u00e0 t\u00e1ch bi\u1ec7t ch\u00fang ra.” \u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, nh\u00f3m nghi\u00ean c\u1ee9u \u0111ang ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n m\u1ed9t thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng chuy\u00ean d\u1ee5ng kh\u00f4ng ch\u1ec9 g\u1edfi t\u00edn hi\u1ec7u ban \u0111\u1ea7u m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng ngh\u1ec7 th\u00f4ng minh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1eb7c t\u00ednh c\u1ee7a nh\u1eefng d\u1eef li\u1ec7u ph\u1ea3n x\u1ea1 l\u1ea1i.<\/p>\n

Theo th\u00e0nh vi\u00ean c\u1ee7a nh\u00f3m, gi\u00e1o s\u01b0 Mau-Chung Frank Chang t\u1ea1i UCLA tuy\u00ean b\u1ed1 r\u1eb1ng con chip wifi m\u1edbi c\u00f3 m\u1ee9c ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng \u00edt h\u01a1n 100 l\u1ea7n so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng, t\u1eeb \u0111\u00f3 g\u00f3p ph\u1ea7n t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a pin, h\u1ee9a h\u1eb9n s\u1ebd \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u00eat b\u1ecb di \u0111\u1ed9ng, thi\u1ebft b\u1ecb \u0111eo. Nh\u00f3m c\u0169ng \u0111ang th\u1ea3o lu\u1eadn c\u00f9ng v\u1edbi c\u00e1c \u0111\u1ed1i t\u00e1c nh\u1eb1m t\u00ecm c\u00e1ch th\u01b0\u01a1ng m\u1ea1i h\u00f3a c\u00f4ng ngh\u1ec7 n\u00e0y. \u0110\u1ed3ng th\u1eddi, ph\u00eda NASA tin r\u1eb1ng k\u1ef9 thu\u1eadt n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 trong c\u00e1c h\u1ec7 th\u1ed1ng th\u00f4ng tin li\u00ean l\u1ea1c tr\u00ean t\u00e0u v\u0169 tr\u1ee5 trong t\u01b0\u01a1ng lai.<\/p>\n

Tham kh\u1ea3o PS, NASA\u200b<\/p>\n

Ngu\u1ed3n tinhte.vn<\/p>\n","protected":false},"excerpt":{"rendered":"

Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u1ebfn t\u1eeb c\u01a1 quan h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 Hoa K\u1ef3 (NASA) v\u00e0 \u0110\u1ea1i h\u1ecdc California (UCLA) \u0111ang ph\u00e1t tri\u1ec3n m\u1ed9t con chip wifi m\u1edbi v\u1edbi kh\u1ea3 n\u0103ng ph\u00e1t t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n, \u00edt ti\u00eau th\u1ee5 \u0111i\u1ec7n v\u00e0 cho t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i cao h\u01a1n, h\u1ee9a h\u1eb9n …<\/p>\n","protected":false},"author":17,"featured_media":3360,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-3358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=3358"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3358\/revisions"}],"predecessor-version":[{"id":3361,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3358\/revisions\/3361"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/3360"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=3358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=3358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=3358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}