{"id":231,"date":"2019-07-28T00:13:30","date_gmt":"2019-07-28T00:13:30","guid":{"rendered":"http:\/\/www.jayjaydream.com\/?p=231"},"modified":"2019-08-11T14:40:24","modified_gmt":"2019-08-11T14:40:24","slug":"%e7%ac%ac%e4%ba%94%e7%ab%a0%e6%97%a0%e7%ba%bf%e9%80%9a%e4%bf%a1%e7%bd%91%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b05","status":"publish","type":"post","link":"https:\/\/www.jayjaydream.com\/?p=231","title":{"rendered":"\u8f6f\u8003\u7f51\u7edc\u5de5\u7a0b\u5e08\u5907\u8003\u5b66\u4e60\u7b14\u8bb05-\u7b2c\u4e94\u7ae0\u65e0\u7ebf\u901a\u4fe1\u7f51"},"content":{"rendered":"<h2><strong>\u7b2c\u4e94\u7ae0\u65e0\u7ebf\u901a\u4fe1\u7f51\u76ee\u5f55<\/strong><\/h2>\n<p><strong>5.1\u79fb\u52a8\u901a\u4fe1<\/strong><br \/>\n5.1.1\u8702\u7a9d\u901a\u4fe1\u7cfb\u7edf<br \/>\n5.1.2\u7b2c\u4e8c\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf<br \/>\n5.1.3\u7b2c\u4e09\u4ee3\u79fb\u52a8\u901a\u4fe1\u7cfb\u7edf<br \/>\n<strong>5.2\u65e0\u7ebf\u5c40\u57df\u7f51<\/strong><br \/>\n5.2.1WLAN\u7684\u57fa\u672c\u6982\u5ff5<br \/>\n5.2.2WLAN\u901a\u4fe1\u6280\u672f<br \/>\n5.2.3IEEE802.11\u4f53\u7cfb\u7ed3\u6784<br \/>\n5.2.4\u79fb\u52a8AdHoc\u7f51\u7edc<br \/>\n5.2.5IEEE802.11\u7684\u65b0\u8fdb\u5c55<br \/>\n<strong>5.3\u65e0\u7ebf\u4e2a\u4eba\u7f51<\/strong><br \/>\n5.3.1\u84dd\u7259\u6280\u672f<br \/>\n5.3.2ZigBee\u6280\u672f<br \/>\n<strong>5.4\u65e0\u7ebf\u57ce\u57df\u7f51<\/strong><br \/>\n5.4.1\u5173\u952e\u6280\u672f<br \/>\n5.4.2MAC\u5b50\u5c42<br \/>\n5.4.3\u54114G\u8fc8\u8fdb<\/p>\n<h2><strong>\u7b2c\u4e94\u7ae0\u65e0\u7ebf\u901a\u4fe1\u7f51\u5b66\u4e60\u7b14\u8bb0<\/strong><\/h2>\n<p>\u4e00\u3001\u65e0\u7ebf\u79fb\u52a8\u901a\u4fe1<\/p>\n<p>\u4e8c\u3001\u65e0\u7ebf\u5c40\u57df\u7f51<\/p>\n<p>\u4e09\u3001\u65e0\u7ebf\u4e2a\u57df\u7f51<\/p>\n<p>\u56db\u3001\u65e0\u7ebf\u57ce\u57df\u7f51<\/p>\n<h3>\u4e00\u3001\u65e0\u7ebf\u79fb\u52a8\u901a\u4fe1<\/h3>\n<p>\u5404\u79cd\u79fb\u52a8\u901a\u4fe1\u6807\u51c6\uff1a<br \/>\n1G \u7b2c\u4e00\u4ee3\u6a21\u62df\u8702\u7a9d\uff1a\u9891\u5206\u53cc\u5de5FDD<br \/>\n2G \u7b2c\u4e8c\u4ee3\u6570\u5b57\u8702\u7a9da.GSM\uff08\u5168\u7403\u79fb\u52a8\u901a\u4fe1\uff09\u91c7\u7528TDMA \u00a0 b.CDMA\uff08\u7801\u5206\u591a\u5740\u901a\u4fe1\uff09<br \/>\n2.5G \u7b2c2.5\u4ee3\u901a\u7528\u5206\u7ec4\u65e0\u7ebf\u4e1a\u52a1GPRS<br \/>\n2.75G \u7b2c2.75\u4ee3\u589e\u5f3a\u578bGPRS\u53ebEDGE<br \/>\n3G \u7b2c\u4e09\u4ee3\uff0c\u901f\u7387\u53ef\u8fbe2Mbps<br \/>\n4G \u7b2c\u56db\u4ee3\uff0c\u901f\u7387\u53ef\u8fbe100Mbps<br \/>\n4G+ 4.5G 5G<\/p>\n<p>\u4e2d\u56fd\u533a\u57df\u5185\uff0c2.4GHz\u65e0\u7ebf\u9891\u6bb5\u5206\u4e3a13\u4e2a\u4fe1\u9053\uff0c \u5e38\u75281 6 11<\/p>\n<p>4G:\u81f3\u5c11100Mbps\uff0c\u4e0b\u8f7d1Gbps\uff0c\u4e0a\u884c500Mbps\uff0c\u4f7f\u7528\u6b63\u4ea4\u9891\u5206\u591a\u5740\u63a5\u5165OFDM\u548cMIMO\u6280\u672f\u3002<\/p>\n<p>\u5305\u542bTDD\u548cFDD\u4e24\u79cd\u5236\u5f0f\u3002<\/p>\n<h3>\u4e8c\u3001\u65e0\u7ebf\u5c40\u57df\u7f51<\/h3>\n<p>WLAN\u4e24\u5927\u9635\u8425\uff1a<br \/>\n\u2460IEEE802.11\u9762\u5411\u6570\u636e\u65e0\u8fde\u63a5<\/p>\n<p>\u2461\u6b27\u6d32\u90ae\u7535\u59d4HIPERLAN\uff0c\u9762\u5411\u8bed\u97f3\u6709\u8fde\u63a5<\/p>\n<p>\u542b\u6709a 5G \u00a0\u542b\u6709n2.4G \/5G<\/p>\n<p>\uff41 \u00a05G \u00a0 \u00a0 \u00a0n \u00a02.4G\/5G<br \/>\nWLAN\u4e24\u79cd\u7ed3\u6784\uff1a<br \/>\na\u57fa\u7840\u8bbe\u7f6e\u7f51\u7edc<\/p>\n<p>b\u7279\u6b8a\u7f51\u7edcAd Hoc<\/p>\n<p>WLAN\u4e24\u79cdAP\uff1a<br \/>\n\u80d6AP\uff08\u65e0\u7ebf\u8def\u7531\u5668\uff09\u7626AP\uff08\u9700AC\u7edf\u4e00\u7ba1\u7406\uff09<\/p>\n<p>\u80d6 AP (FAT) \u4e00\u822c\u6307\u65e0\u7ebf\u8def\u7531\uff1a\u80d6 AP \u591a\u7528\u4e8e\u5bb6\u5ead \u548c\u5c0f\u578b\u7f51\u7edc\uff0c\u529f\u80fd\u6bd4\u8f83\u5168\uff0c\u4e00\u822c\u4e00\u53f0\u8bbe\u5907\u5c31\u80fd \u5b9e\u73b0\u63a5\u5165\u3001\u8ba4\u8bc1\u3001\u8def\u7531\u3001 VPN \u3001\u5730\u5740\u7ffb\u8bd1\uff0c\u00a0\u751a\u81f3\u9632\u706b\u5899\u529f\u80fd<\/p>\n<p>\u7626 AP (FIT) \u4e00\u822c\u6307\u65e0\u7ebf\u7f51\u5173\u6216\u7f51\u6865\uff1a\u7626 AP \u591a\u7528 \u4e8e\u8981\u6c42\u8f83\u9ad8\u7684\u573a\u5408\uff0c\u8981\u5b9e\u73b0\u8ba4\u8bc1\u4e00\u822c\u9700\u8981\u8ba4\u8bc1 \u670d\u52a1\u5668\u6216\u8005\u652f\u6301\u8ba4\u8bc1\u529f\u80fd\u7684\u4ea4\u6362\u673a\u914d\u5408\u3002<\/p>\n<p>WLAN\u4e09\u79cd\u6280\u672f\uff1a<br \/>\n\u2460\u7ea2\u5916\u7ebf\uff0c\u2461\u6269\u5c55\u9891\u8c31\uff0c\u2462\u7a84\u5e26\u5fae\u6ce2\u3002<\/p>\n<p>\u7ea2\u5916\u7ebf\u5206\u4e3a\uff1a\u5b9a\u5411\u5149\u675f\u7ea2\u5916\u7ebf\u3001\u5168\u5411\u5e7f\u64ad\u7ea2\u5916 \u7ebf\uff0c\u6f2b\u53cd\u5c04\u7ea2\u5916\u7ebf\u3002<\/p>\n<p>\u6269\u5c55\u9891\u8c31\u5206\u4e3a\uff1a\u9891\u7387\u8df3\u52a8 FHSS \u3001\u76f4\u63a5\u5e8f\u5217 DSSS \u3002<\/p>\n<p>\u7a84\u5e26\u5fae\u6ce2\u5206\u4e3a\uff1a\u7533\u8bf7\u8bb8\u53ef\u8bc1 RF \uff0c\u514d\u8bb8\u53ef\u8bc1 RF \u3002<\/p>\n<p>CSMA\/CA \uff1a\u8f7d\u6ce2\u76d1\u542c\u591a\u8def\u8bbf\u95ee\u51b2\u7a81\u907f\u514d\uff0c\u89e3\u51b3\u9690\u853d\u7ec8\u7aef\u95ee\u9898\u3002<\/p>\n<p>IEEE802.11 MAC\u5b50\u5c42\u5b9a\u4e49\u7684\u7ade\u4e89\u6027\u8bbf\u95ee\u63a7\u5236\u534f\u8bae\u662fCSMA\/CA<\/p>\n<p>1 \u3001\u4f20\u6570\u636e\u5148\u68c0\u6d4b\uff0c\u5982\u679c\u63a2\u6d4b\u5230\u7f51\u7edc\u4e2d\u6ca1\u6709\u6570 \u636e\uff0c\u5219\u7b49\u5f85\u4e00\u4e2a IFS \u65f6\u95f4\uff0c\u518d\u968f\u673a\u9009\u62e9\u4e00\u4e2a\u65f6 \u95f4\u7247\u7ee7\u7eed\u63a2\u6d4b\uff0c\u5982\u679c\u65e0\u7ebf\u7f51\u8def\u4e2d\u8fd8\u6ca1\u6709\u6d3b\u52a8\u7684 \u8bdd\uff0c\u5c31\u5c06\u6570\u636e\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n<p>2 \u3001\u9001\u51fa\u6570\u636e\u524d\uff0c\u5148\u9001\u4e00\u6bb5\u5c0f\u5c0f\u7684\u8bf7\u6c42\u62a5\u6587\u7ed9 \u76ee\u6807\u7aef\uff0c\u6536\u5230\u76ee\u6807\u7aef\u56de\u5e94\u540e\uff0c\u5728\u4f20\u9001\u5927\u91cf\u7684\u6570 \u636e\uff0c\u786e\u4fdd\u4e0d\u4f1a\u78b0\u649e\uff0c\u5f00\u9500\u6700\u5c0f\u3002<\/p>\n<p>\u4e09\u79cd\u5e27\u95f4\u9694 IFS \uff1a<\/p>\n<p>\u2460DIFS \uff08\u5206\u5e03\u5f0f\u534f\u8c03 IFS \uff09\u6700\u957f\uff0c\u4f18\u5148\u7ea7\u6700\u4f4e\u3002<\/p>\n<p>\u2461PIFS \uff08\u70b9\u534f\u8c03 IFS \uff09\u4e2d\u7b49\u957f\u5ea6\uff0c\u4f18\u5148\u7ea7\u5c45\u4e2d\u3002<\/p>\n<p>\u2462SIFS \uff08\u77ed IFS \uff09\u6700\u77ed\uff0c\u4f18\u5148\u7ea7\u6700\u9ad8\u7acb\u5373\u54cd\u5e94\u3002<\/p>\n<p>\u65e0\u7ebf\u52a0\u5bc6\u534f\u8bae WEP \uff1a\u8ba4\u8bc1\u548c\u52a0\u5bc6\uff0c \u660e\u6587\u7684\u3002<\/p>\n<p>\u65e0\u7ebf\u4fdd\u62a4\u63a5\u5165 WPA\/WPA2 \uff1a 802.1x \u8ba4\u8bc1\u3001 RC4 \u52a0\u5bc6\u548c TKIP \u6570\u636e\u5b8c\u6574\u6027\u3002<\/p>\n<p>Ad Hoc \u7f51\u7edc\uff1a\u8282\u70b9\u4e4b\u95f4\u5bf9\u7b49\u3002\u6bcf\u4e2a \u8282\u70b9\u65e2\u662f\u4e3b\u673a\uff0c\u53c8\u662f\u8def\u7531\u5668\u3002\u5f62\u6210\u81ea\u7ec4\u7ec7\u7f51 MANET \u3002<\/p>\n<p>MANET\u4e2d\u7684\u8def\u7531\u534f\u8bae<\/p>\n<p>DSDV \u8def\u7531\u534f\u8bae\uff1a\u76ee\u6807\u6392\u5e8f\u7684\u8ddd\u79bb\u77e2\u91cf\u534f\u8bae\uff0c\u6241\u5e73\u5f0f\uff0c\u5148\u9a8c\u5f0f\uff0c\u5229\u7528\u5e8f\u5217\u53f7\u89e3\u51b3\u73af \u8def\u3002<\/p>\n<p>AODV \u8def\u7531\u534f\u8bae\uff1a\u6309\u9700\u5206\u914d\u7684\u8ddd\u79bb\u77e2 \u91cf\u534f\u8bae\uff0c\u6241\u5e73\u5f0f\uff0c\u53cd\u5e94\u5f0f\uff0c\u5f00\u9500\u5c11\uff0c\u9002\u5408\u5feb\u901f \u53d8\u5316\u7684\u7f51\u7edc\u3002<\/p>\n<p>\u65e0\u7ebf\u7f51\u7684\u5b89\u5168\uff1a\u9690\u85cf SSID \u3001 MAC \u8fc7 \u6ee4\u3001 WEP\/WPA\/WPA2 \u3001 802.11i \u56db\u4e2a\u65b9\u9762\u3002<\/p>\n<p>\u65e0\u7ebf\u5c40\u57df\u7f51\u901a\u5e38\u91c7\u7528\u7684\u52a0\u5bc6\u65b9\u5f0f\u662fWPA2\u5176\u5b89\u5168\u52a0\u5bc6\u7b97\u6cd5\u662fAES\u548cTKIP\u3002<\/p>\n<h3>\u4e09\u3001\u65e0\u7ebf\u4e2a\u57df\u7f51<\/h3>\n<p>\u65e0\u7ebf\u4e2a\u4eba\u7f51WPAN\uff1a\u5c0f\u8303\u56f4\uff0c 10 \u7c73\u5de6 \u53f3\uff0c\u624b\u6301\u8bbe\u5907\u3002 IEEE 802.15.1\/2\/3\/4 \u6807\u51c6\u3002<\/p>\n<p>\u84dd\u7259 (Bluetooh \uff09 \u6280\u672f IEEE 802.15.1 \uff1a 1 \u4e3b\u8bbe\u5907\u3001 7 \u4ece\u8bbe\u5907\u3002<\/p>\n<p>\u56db\u4e2a\u91cd\u8981\u534f\u8bae\uff1a RF\u65e0\u7ebf\u7535\u9891\u7387\u534f\u8bae\u3001\u94fe\u8def\u63a7\u5236\u534f\u8baeLCP \u3001\u94fe\u8def\u7ba1\u7406\u534f\u8baeLMP\u548c\u94fe\u8def\u63a7\u5236\u81ea\u9002\u5e94\u534f\u8baeL2CAP \u3002<\/p>\n<p>ZigBee( \u871c\u8702\u7f51 ) \u6280\u672f IEEE 802.15.4 \uff1a \u5168\u529f\u80fd\u8bbe\u5907 FFD \uff0c\u7b80\u5355\u529f\u80fd\u8bbe\u5907 RFD \uff0c RFD \u4e4b\u95f4\u4e0d\u80fd\u901a\u4fe1\u3002\u4e00\u822c\u7528\u4e8e\u7269\u8054\u7f51\u3002<\/p>\n<h3>\u56db\u3001\u65e0\u7ebf\u57ce\u57df\u7f51<\/h3>\n<p>\u65e0\u7ebf\u57ce\u57df\u7f51 IEEE 802.16 \uff1a WiMAX \uff1a 802.16d \uff08\u65e0\u7ebf\u56fa\u5b9a\uff09\uff0c 802.16e \uff08\u65e0\u7ebf\u79fb\u52a8\uff09\u3002 WiMAX II \uff1a 802.16m \uff08 4G \uff09\u3002<\/p>\n<p>\u5173\u952e\u6280\u672f\uff1a\u6b63\u4ea4\u9891\u5206\u591a\u8def\u590d\u7528 OFDM \u3001\u591a\u8f93\u5165 \u591a\u8f93\u51fa MIMO \u3001\u9891\u5206 \/ \u65f6\u5206\u53cc\u5de5 FDD\/TDD \u3002<\/p>\n<p>\u53c2\u8003\uff1a<\/p>\n<p class=\"title-article\"><a href=\"https:\/\/blog.csdn.net\/qq_35428201\/article\/details\/81734792\">\u7f51\u7edc\u5de5\u7a0b\u5e08\u7ecf\u9a8c\u5206\u4eab\u4e4b\u65e0\u7ebf\u901a\u4fe1\u7f51<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u4e94\u7ae0\u65e0\u7ebf\u901a\u4fe1\u7f51\u76ee\u5f55 5.1\u79fb\u52a8\u901a\u4fe1 5.1.1\u8702\u7a9d\u901a\u4fe1\u7cfb\u7edf 5.1.2\u7b2c\u4e8c\u4ee3\u79fb &hellip; <a href=\"https:\/\/www.jayjaydream.com\/?p=231\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,3],"tags":[32],"class_list":["post-231","post","type-post","status-publish","format-standard","hentry","category-39","category-3","tag-32"],"_links":{"self":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=231"}],"version-history":[{"count":7,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/231\/revisions"}],"predecessor-version":[{"id":522,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/231\/revisions\/522"}],"wp:attachment":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}