{"id":1102,"date":"2019-10-31T18:13:50","date_gmt":"2019-10-31T10:13:50","guid":{"rendered":"http:\/\/iqotom.com\/?p=1102"},"modified":"2019-11-02T17:11:54","modified_gmt":"2019-11-02T09:11:54","slug":"802-11%e5%8d%8f%e8%ae%ae%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/iqotom.com\/?p=1102","title":{"rendered":"802.11\u534f\u8bae\u8be6\u89e3"},"content":{"rendered":"\n

================================================================
\u300a 802.11abgn\u4e0e802.11ac\u7684\u533a\u522b\u4ee5\u53ca\u8be6\u7ec6\u4ecb\u7ecd<\/a> \u300b
\u300aWIFI\u65e0\u7ebf\u534f\u8bae802.11a\/b\/g\/n\/ac\u7684\u6f14\u53d8\u4ee5\u53ca\u533a\u522b<\/a>\u300b
\u300a802.11\u534f\u8bae\u8be6\u89e3<\/a>\u300b
================================================================ <\/p>\n\n\n\n

WLAN\u534f\u8bae\u8be6\u89e3<\/strong><\/h2>\n\n\n\n

802.11b\/g\/n\u5b9a\u4e49\u57282.4GHz\u9891\u6bb5\u4e2d\uff0c802.11a\/n\/ac\u5de5\u4f5c\u57285GHz\u9891\u6bb5\u4e2d\u3002 <\/p>\n\n\n\n

\"\"
\"\"<\/figcaption><\/figure><\/div>\n\n\n\n

802.11<\/strong><\/h2>\n\n\n\n

\u5de5\u4f5c\u57282.4G\u9891\u6bb5\uff0c\u63d0\u4f9b\u4e86\u6bcf\u79d21\u5146\u62162\u5146\u7684\u4f20\u8f93\u901f\u7387 <\/p>\n\n\n\n

802.11b<\/strong><\/h2>\n\n\n\n
  1. \u6700\u9ad811Mbps\u541e\u5410\u91cf <\/li>
  2. \u5de5\u4f5c\u57282.4GHz\uff0c\u91c7\u7528\u76f4\u5e8f\u6269\u9891\uff08DSSS <\/li>
  3. 802.11b\u662f\u6240\u6709\u65e0\u7ebf\u5c40\u57df\u7f51\u6807\u51c6\u4e2d\u6700\u8457\u540d\uff0c\u4e5f\u662f\u666e\u53ca\u6700\u5e7f\u7684\u6807\u51c6\u3002\u57282.4GHz ISM\u9891\u6bb5\u4e2d\u5171\u670914\u4e2a\u9891\u5bbd\u4e3a22MHz\u7684\u9891\u9053\u53ef\u4f9b\u4f7f\u7528\uff0c3\u4e2a\u4fe1\u9053\u4e0d\u91cd\u53e0 <\/li><\/ol>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n

    802.11g<\/strong><\/h2>\n\n\n\n
    1. \u6700\u9ad8\u901f\u738754Mbps <\/li>
    2. 802.11g\u5de5\u4f5c\u57282.4GHz\u9891\u6bb5 <\/li>
    3. 802.11g\u91c7\u7528\u6b63\u4ea4\u9891\u5206\u590d\u7528\uff08OFDM\uff09\uff0c\u652f\u63016\u30019\u300112\u300118\u300124\u300136\u300148\u300154Mbps\u6570\u636e\u901f\u7387\u53ca802.11b\u901f\u7387 <\/li><\/ol>\n\n\n\n

      802.11a<\/strong><\/h2>\n\n\n\n
      1. \u6700\u9ad8\u901f\u7387\u8fbe54Mbps <\/li>
      2. 802.11a\u5de5\u4f5c\u57285GHz <\/li>
      3. 802.11a\u91c7\u7528\u6b63\u4ea4\u9891\u5206\u590d\u7528\uff08OFDM\uff09\uff0c\u652f\u63016\u30019\u300112\u300118\u300124\u300136\u300148\u300154Mbps\u6570\u636e\u901f\u7387 <\/li><\/ol>\n\n\n\n

        802.11n<\/strong><\/h2>\n\n\n\n
        1. \u6700\u9ad8\u901f\u7387\u53ef\u8fbe600Mbps <\/li>
        2. 802.11n\u534f\u8bae\u4e3a\u53cc\u9891\u5de5\u4f5c\u6a21\u5f0f\uff0c\u652f\u63012.4GHz\u548c5GHz\uff0c\u517c\u5bb9802.11a\/b\/g\u6807\u51c6\u517c\u5bb9 <\/li>
        3. 802.11n\u91c7\u7528MIMO\u4e0eOFDM\u76f8\u7ed3\u5408 <\/li>
        4. \u4f20\u8f93\u8ddd\u79bb\u5927\u5927\u589e\u52a0 <\/li>
        5. \u63d0\u9ad8\u7f51\u7edc\u541e\u5410\u91cf\u6027\u80fd <\/li><\/ol>\n\n\n\n

          802.11n\u4f18\u52bf<\/strong>:<\/p>\n\n\n\n

          \"\"
          \"\"<\/figcaption><\/figure><\/div>\n\n\n\n

          \u901f\u7387\u63d0\u5347-\u66f4\u591a\u7684\u5b50\u8f7d\u6ce2<\/strong>
          802.11a\/g\u572820MHz\u6a21\u5f0f\u4e0b\u670948\u4e2a\u53ef\u7528\u5b50\u8f7d\u6ce2\uff0c\u901f\u5ea6\u53ef\u8fbe54Mbps
          802.11n\u572820MHz\u6a21\u5f0f\u4e0b\u670952\u4e2a\u53ef\u7528\u5b50\u8f7d\u6ce2\uff0c\u901f\u5ea6\u53ef\u8fbe58.5Mbps <\/p>\n\n\n\n

          \"\"<\/figure><\/div>\n\n\n\n

          \u901f\u7387\u63d0\u5347-\u7f16\u7801\u7387<\/strong><\/p>\n\n\n\n

          \"\"<\/figure><\/div>\n\n\n\n

          \u901f\u7387\u63d0\u5347-Short GI<\/strong>
          \u5728\u65e0\u7ebf\u6536\u53d1\u8fc7\u7a0b\u4e2d\u6536\/\u53d1\u95f4\u6216\u591a\u6b21\u4f20\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u82e5\u5e72\u95f4\u9694\u65f6\u95f4\uff0c\u800c\u8fd9\u4e2a\u95f4\u9694\u65f6\u95f4\u5c31\u6210\u4e3aGuard Interval\uff0c\u7b80\u79f0GI
          Short Guard Interval \u66f4\u77ed\u7684\u5e27\u95f4\u4fdd\u62a4\u95f4\u9694 <\/p>\n\n\n\n

          \"\"<\/figure><\/div>\n\n\n\n

          \u3000\u3000802.11a\/b\/g\u6807\u51c6\u8981\u6c42\u5728\u53d1\u9001\u6570\u636e\u65f6\uff0c\u5fc5\u987b\u4fdd\u8bc1\u5728\u6570\u636e\u4e4b\u95f4\u5b58\u5728800ns\u7684\u65f6\u95f4\u95f4\u9694\uff0c802.11n\u4ecd\u7f3a\u7701\u4f7f\u7528800ns\uff0c\u5f53\u591a\u5f84\u6548\u5e94\u4e0d\u4e25\u91cd\u65f6\uff0c\u53ef\u4ee5\u5c06\u8be5\u95f4\u9694\u914d\u7f6e\u4e3a400ns\uff0c\u53ef\u4ee5\u5c06\u541e\u5410\u91cf\u63d0\u5347\u8fd110% <\/p>\n\n\n\n

          Short GI\u4f7f\u7528\u7528\u4e8e\u591a\u5f84\u60c5\u51b5\u8f83\u5c11\u3001\u5c04\u9891\u73af\u5883\u8f83\u597d\u7684\u5e94\u7528\u573a\u666f <\/p>\n\n\n\n

          \u901f\u7387\u63d0\u5347-40M\u9891\u5bbd\u6a21\u5f0f <\/strong><\/p>\n\n\n\n

          \u3000\u3000802.11n\u540c\u65f6\u5b9a\u4e49\u4e862.4GHz\u9891\u6bb5\u548c5GHz\u9891\u6bb5\u7684WLAN\u6807\u51c6\uff0c\u4e0e802.11a\/b\/g\u6bcf\u4fe1\u9053\u53ea\u752820MHz\u9891\u5bbd\u4e0d\u540c\u7684\u662f802.11n\u5b9a\u4e49\u4e86\u4e24\u79cd\u9891\u5e26\u5bbd\u5ea6\uff1a20MHz\u9891\u5bbd\u300140MHz\u9891\u5bbd\u3002\u4f7f\u752840MHz\u9891\u5bbd\u6a21\u5f0f\uff0c\u53ef\u4ee5\u6210\u500d\u7684\u589e\u52a0\u65e0\u7ebf\u7f51\u7edc\u7684\u652f\u6301\u901f\u7387 <\/p>\n\n\n\n

          MINO\u6280\u672f<\/strong><\/h2>\n\n\n\n

          \u3000\u3000\u91c7\u7528802.11a\/b\/g\u6280\u672f\u7684\u65e0\u7ebf\u63a5\u5165\u70b9\u548c\u5ba2\u6237\u7aef\u662f\u901a\u8fc7\u5355\u4e2a\u5929\u7ebf\u5355\u4e2a\u7a7a\u95f4\u4fe1\u9053\uff08SISO\uff09\u6765\u5b9e\u73b0\u6570\u636e\u4f20\u9001\u7684\u3002<\/p>\n\n\n\n

          \u3000\u3000\u91c7\u7528802.11n\u6280\u672f\u7684\u65e0\u7ebf\u63a5\u5165\u70b9\u548c\u5ba2\u6237\u7aef\u53ef\u4ee5\u5229\u7528\u4e24\u4e2a\u6216\u66f4\u591a\u7a7a\u5206\u4fe1\u9053\u540c\u65f6\u4f20\u8f93\u6570\u636e\uff0c\u5982\u679c\u7ec8\u7aef\u4e5f\u652f\u6301MIMO\u6280\u672f\u7684\u8bdd\uff0c\u80fd\u591f\u91c7\u7528\u591a\u4e2a\u63a5\u6536\u5929\u7ebf\u548c\u9ad8\u7ea7\u4fe1\u53f7\u5904\u7406\u6280\u672f\u6765\u91cd\u5efa\u4ece\u591a\u4e2a\u4fe1\u9053\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e \u3002<\/p>\n\n\n\n

          \u3000\u3000MIMO\uff08Multiple in\uff0cMultiple out\uff09\u6280\u672f\u5c31\u662f\u5229\u7528\u5176\u4ed6\u6280\u672f\u6765\u6539\u8fdb\u63a5\u6536\u7aef\u7684\u4fe1\u566a\u6bd4 \u3002<\/p>\n\n\n\n

          \"\"<\/figure><\/div>\n\n\n\n

          \u3000\u3000\u5728\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u53d1\u5c04\u673a\u3002\u63a5\u6536\u673a\u4e0a\u4f7f\u7528\u591a\u4e2a\u5929\u7ebf\u5f00\u8f9f\u4e86\u4e00\u4e2a\u65b0\u7684\u7ef4\u5ea6\u7a7a\u95f4\u3002\u5982\u679c\u80fd\u591f\u6b63\u786e\u5229\u7528\u8fd9\u4e00\u6280\u672f\uff0c\u53ef\u4ee5\u6781\u5927\u63d0\u9ad8\u6027\u80fd\uff0c\u5b83\u73b0\u5728\u88ab\u5e7f\u6cdb\u5730\u79f0\u4e3aMIMO\u3002\u53d1\u5c04\u673a\u7684\u591a\u4e2a\u5929\u7ebf\u610f\u5473\u7740\u6709\u591a\u4e2a\u4fe1\u53f7\u8f93\u5165\u5230\u65e0\u7ebf\u4fe1\u9053\u4e2d\uff0c\u63a5\u6536\u7aef\u7684\u591a\u4e2a\u5929\u7ebf\u662f\u6307\u591a\u4e2a\u4fe1\u53f7\u4ece\u65e0\u7ebf\u4fe1\u9053\u8f93\u51fa\uff0c\u591a\u5929\u7ebf\u63a5\u6536\u673a\u5229\u7528\u5148\u8fdb\u7684\u7a7a\u65f6\u7f16\u7801\u5904\u7406\u80fd\u591f\u5206\u5f00\u5e76\u89e3\u7801\u8fd9\u4e9b\u6570\u636e\u5b50\u6d41\uff0c\u4ece\u800c\u5b9e\u73b0\u6700\u4f73\u5904\u7406\uff0c\u5e76\u6709\u6548\u62b5\u6297\u7a7a\u95f4\u9009\u62e9\u6027\u8870\u843d\u3002 <\/p>\n\n\n\n

          \u6ce2\u675f\u6210\u5f62\u6280\u672f\uff1a<\/strong>
          \u5f53\u53d1\u5c04\u7aef\u6709\u591a\u4e2a\u53d1\u5c04\u5929\u7ebf\u65f6\uff0c\u8c03\u6574\u4ece\u5404\u4e2a\u5929\u7ebf\u53d1\u51fa\u7684\u4fe1\u53f7\u4f7f\u5f97\u63a5\u6536\u7aef\u4fe1\u53f7\u5f3a\u5ea6\u6709\u663e\u8457\u6539\u5584\u7684\u6280\u672f\u3002 <\/p>\n\n\n\n

          \n\nMIMO\u7684\u5929\u7ebf\u914d\u7f6e\u901a\u5e38\u8868\u793a\u6210 \u201c M *N “\uff0c\u5176\u4e2dM\u548cN\u5747\u4e3a\u6574\u6570\n\n<\/p>\n\n\n\n

          \n\nM\u8868\u793a\u4f20\u8f93\u5929\u7ebf\u7684\u6570\u91cf\n\n<\/p>\n\n\n\n

          N\u8868\u793a\u63a5\u6536\u5929\u7ebf\u7684\u6570\u91cf <\/p>\n\n\n\n

          \"\"<\/figure><\/div>\n\n\n\n

          802.11nMAC\u5c42\u6539\u8fdb<\/strong><\/h2>\n\n\n\n

          \u3000\u3000802.11MAC\u5c42\u534f\u8bae\u8017\u8d39\u4e86\u76f8\u5f53\u591a\u6548\u7387\u7528\u4f5c\u94fe\u8def\u7684\u7ef4\u62a4\uff0c\u4ece\u800c\u5927\u5927\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u3002802.11n\u901a\u8fc7\u6539\u5584MAC\u5c42\u6765\u51cf\u5c11\u56fa\u5b9a\u7684\u5f00\u9500\u53ca\u62e5\u585e\u9020\u6210\u7684\u635f\u5931\u3002\u5e27\u805a\u5408\u6280\u672f\u548c\u5757\u786e\u8ba4\u6280\u672f <\/p>\n\n\n\n

          \u5e27\u805a\u5408<\/strong><\/h3>\n\n\n\n

          802.11n\u5f15\u5165\u5e27\u805a\u5408\u6280\u672f\uff0c\u63d0\u9ad8MAC\u5c42\u6548\u7387\uff0c\u62a5\u6587\u5e27\u805a\u5408\u6280\u672f\u5305\u62ec\uff1a <\/p>\n\n\n\n

          1. MAC\u670d\u52a1\u6570\u636e\u5355\u5143\u805a\u5408 A-MSDU <\/li>
          2. MAC\u534f\u8bae\u6570\u636e\u5355\u5143\u805a\u5408 A-MPDU <\/li><\/ol>\n\n\n\n

            \u3000\u3000\u4e24\u79cd\u805a\u5408\u65b9\u5f0f\u7684\u5171\u540c\u70b9\uff1a\u51cf\u5c11\u8d1f\u8377\uff0c\u4e14\u53ea\u80fd\u805a\u5408\u540c\u4e00QoS\u7ea7\u522b\u5bf9\u7684\u5e27\uff0c\u4f46\u56e0\u4e3a\u8981\u7b49\u5f85\u9700\u8981\u805a\u5408\u7684\u62a5\u6587\uff0c\u53ef\u80fd\u9020\u6210\u5ef6\u65f6\u3002\u53e6\u5916\u53ea\u6709MPDU\u624d\u80fd\u4f7f\u7528\u5757\u786e\u8ba4\u3002 <\/p>\n\n\n\n

            MSDU\u805a\u5408<\/h4>\n\n\n\n

            MAC\u670d\u52a1\u6570\u636e\u5355\u5143 MSDU-Mac Service Data Units\u805a\u5408\uff1a <\/p>\n\n\n\n

            1. \u6536\u96c6\u4ee5\u592a\u7f51\u5e27\u6c47\u805a <\/li>
            2. \u8f6c\u6210802.11\u65e0\u7ebf\u5e27 <\/li><\/ol>\n\n\n\n

              \u3000\u3000A-MSDU\u5141\u8bb8\u5bf9\u76ee\u7684\u5730\u53ca\u5e94\u7528\u90fd\u76f8\u540c\u7684\u591a\u4e2a\u5305\u8fdb\u884c\u805a\u5408\uff0c\u805a\u5408\u540e\u7684\u591a\u4e2a\u5305\u53ea\u6709\u4e00\u4e2a\u5171\u540c\u7684MAC\u5e27\u5934\u3002\u5f53\u591a\u4e2a\u5e27\u805a\u5408\u5230\u4e00\u8d77\u540e\uff0c\u5305\u5934\u7684\u8d1f\u8f7d\u3001\u4f20\u64ad\u7684\u65f6\u95f4\u53ca\u786e\u8ba4\u5305\u90fd\u4f1a\u51cf\u5c11\uff0c\u4ece\u800c\u63d0\u9ad8\u65e0\u7ebf\u4f20\u8f93\u6548\u7387\u3002A-MSDU\u6700\u5927\u7684\u5927\u5c0f\u662f7935\u5b57\u8282\u3002 <\/p>\n\n\n\n

              \"\"<\/figure><\/div>\n\n\n\n

              MPDU\u805a\u5408<\/strong><\/h4>\n\n\n\n

              MAC\u534f\u8bae\u6570\u636e\u5355\u5143MPDU\u805a\u5408\uff1a <\/p>\n\n\n\n

              1. \u8f6c\u6210802.11\u65e0\u7ebf\u5e27 <\/li>
              2. \u5c06802.11\u65e0\u7ebf\u5e27\u6c47\u805a <\/li><\/ol>\n\n\n\n

                \u3000\u3000MPDU\u5141\u8bb8\u5bf9\u76ee\u7684\u5730\u76f8\u540c\u4f46\u662f\u5e94\u7528\u4e0d\u540c\u7684\u591a\u4e2a\u5305\u8fdb\u884c\u805a\u5408\uff0c\u5176\u6548\u7387\u4e0d\u5982MSDU\uff0c\u4f46\u8fd8\u662f\u4f1a\u51cf\u5c11\u62a5\u6587\u8d1f\u8f7d\u53ca\u7a7a\u6c14\u4f20\u64ad\u65f6\u95f4\u3002A-MPDU\u7684\u6700\u5927\u7684\u5305\u4e3a65535\u5b57\u8282\u3002 <\/p>\n\n\n\n

                \"\"<\/figure><\/div>\n\n\n\n

                \u5757\u786e\u8ba4\uff1a<\/strong>
                \u3000\u3000\u4e3a\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\uff0c802.11\u534f\u8bae\u89c4\u5b9a\u6bcf\u6536\u5230\u4e00\u4e2a\u5355\u64ad\u6570\u636e\u5e27\uff0c\u90fd\u5fc5\u987b\u7acb\u5373\u56de\u5e94\u4e00\u4e2aACK\u5e27\u3002A-MPDU\u7684\u63a5\u6536\u7aef\u5728\u6536\u5230A-MPDU\u540e\uff0c\u9700\u8981\u5bf9\u5176\u4e2d\u7684\u6bcf\u4e00\u4e2aMPDU\u8fdb\u884c\u5904\u7406\uff0c\u56e0\u6b64\u9700\u8981\u5bf9\u6bcf\u4e00\u4e2aMPDU\u53d1\u9001\u5e94\u7b54\u5e27\u3002\u5757\u786e\u8ba4\u673a\u5236\u901a\u8fc7\u4f7f\u7528\u4e00\u4e2aACK\u6765\u5b8c\u6210\u5bf9\u591a\u4e2aMPDU\u7684\u5e94\u7b54\uff0c\u4ee5\u964d\u4f4e\u8fd9\u79cd\u60c5\u51b5\u4e0bACK\u5e27\u7684\u6570\u91cf\u3002 <\/p>\n\n\n\n

                \"\"<\/figure><\/div>\n\n\n\n

                 802.11ac<\/strong><\/h2>\n\n\n\n
                1. 802.11ac\u5de5\u4f5c\u9891\u6bb5\u4e3a5GHz\u9891\u7387 <\/li>
                2. \u4fdd\u6301\u4e0e\u65e7\u7684\u534f\u8bae\u7684\u517c\u5bb9\u6027\u3002\u6539\u8fdb\u4e86\u7269\u7406\u5c42\u5e27\u7ed3\u6784\uff0c\u8003\u8651\u4e0d\u540c\u4fe1\u9053\u5e26\u5bbd\u5171\u5b58\u65f6\u7684\u4fe1\u9053\u7ba1\u7406\u7b49 <\/li>
                3. \u5b89\u5168\u6027\u65b9\u9762\uff0c\u5b83\u5c06\u5b8c\u5168\u9075\u5faa802.11i\u5b89\u5168\u6807\u51c6\u7684\u6240\u6709\u5185\u5bb9 <\/li>
                4. 802.11ac\u5c06\u53ef\u4ee5\u5e2e\u52a9\u4f01\u4e1a\u6216\u5bb6\u5ead\u5b9e\u73b0\u65e0\u7f1d\u6f2b\u6e38 <\/li>
                5. 802.11\u53ef\u652f\u630120M\u300140M\u300180M\u300180+80M\uff08\u4e0d\u8fde\u7eed\uff0c\u975e\u91cd\u53e0\uff09\u3001160M\u5e26\u5bbd\uff0c\u5176\u4e2d20M\u300140M\u300180M\u662f\u5fc5\u9009\u7684 <\/li><\/ol>\n\n\n\n

                  802.11ac\u7684\u4f18\u52bf\uff1a<\/strong><\/h3>\n\n\n\n
                  1. \u66f4\u9ad8\u7684\u541e\u5410\u91cf\uff0c802.11ac wave2\u6700\u5927\u53ef\u652f\u63013.47Gbps <\/li>
                  2. \u66f4\u5c11\u7684\u5e72\u6270\uff0c\u4e3b\u6d41\u7684\u627f\u8f7d\u9891\u7387\u662f5G\u9891\u6bb5 <\/li>
                  3. \u66f4\u591a\u7684\u63a5\u5165\uff0c\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u541e\u5410\u7387\u548c\u591a\u7528\u6237MIMO\u5728\u5ba2\u89c2\u4e0a\u63d0\u9ad8\u4e86\u66f4\u591a\u7684\u7528\u6237\u63a5\u5165\u80fd\u529b <\/li><\/ol>\n\n\n\n

                    MU-MIMO<\/strong><\/p>\n\n\n\n

                    \u3000\u3000MU-MIMO \uff08 Multi-User Multiple-Input Multiple-Output \uff09\u591a\u7528\u6237-\u591a\u8f93\u5165\u591a\u8f93\u51fa\uff0c\u5176\u91c7\u7528\u663e\u793a\u6ce2\u675f\u6210\u5f62\u6280\u672f\uff0c\u5b9e\u73b0\u4fe1\u53f7\u7684\u4f20\u64ad\u65b9\u5411\u548c\u63a5\u53d7\u63a7\u5236\uff0c\u5411\u591a\u4e2a\u7ec8\u7aef\u53d1\u9001\u6570\u636e\uff0c\u540c\u65f6\u4fdd\u8bc1\u7ec8\u7aef\u5f7c\u6b64\u4e0d\u53d7\u5e72\u6270\u3002MU-MIMO\u4e4b\u540e\uff0c\u53ef\u4ee5\u5c06AP\u7a7a\u95f4\u6d41\u7075\u6d3b\u5206\u914d\u7ed9\u591a\u4e2a\u7ec8\u7aef\u8fdb\u884c\u6570\u636e\u4f20\u9001\uff0c\u7f13\u89e3\u4e86AP\u548c\u7ec8\u7aef\u7a7a\u95f4\u6d41\u80fd\u529b\u4e0d\u5339\u914d\u7684\u95ee\u9898\uff0c\u5145\u5206\u53d1\u6325\u4e86AP\u7684\u6027\u80fd\u3002\u3000 <\/p>\n\n\n\n

                    \"\"<\/figure><\/div>\n\n\n\n

                    \u3000\u3000 \u5355\u7528\u6237MIMO\u53ef\u4ee5\u5927\u5927\u589e\u52a0\u5355\u7528\u6237\u7684\u541e\u5410\u91cf\uff0c\u4f46\u73b0\u7f51\u4e2d\u5927\u91cf\u7ec8\u7aef\u4ecd\u7136\u5355\u6d41\u3002\u5355\u6d41\u7684\u7ec8\u7aef\u76f8\u5bf9\u4e8e\u591a\u6d41\u7684\u7ec8\u7aef\u4f20\u8f93\u76f8\u540c\u7684\u5927\u5c0f\u7684\u6570\u636e\u9700\u8981\u5360\u7528\u66f4\u591a\u7684\u7a7a\u53e3\u65f6\u95f4\uff0c\u56e0\u6b64\u5355\u6d41\u63d0\u5347\u7ec8\u7aef\u4e5f\u6210\u4e86\u63d0\u5347\u7528\u6237\u6570\u7684\u4e00\u4e2a\u74f6\u9888\u3002\u591a\u7528\u6237MIMO\u662f\u89e3\u51b3\u8fd9\u95ee\u9898\u7684\u597d\u529e\u6cd5\uff0c\u5728\u4e0d\u6539\u53d8\u7528\u6237\u5e26\u5bbd\u548c\u9891\u7387\u7684\u60c5\u51b5\u4e0b\uff0c\u5728\u540c\u4e00\u65f6\u523b\uff0c\u4e00\u4e2aAP\u540c\u65f6\u7ed9\u591a\u4e2a\u7528\u6237\uff08\u6700\u591a\u652f\u63014\u4e2a\u7528\u6237\uff09\u53d1\u9001\u4e0d\u540c\u7684\u6570\u636e \u3002<\/p>\n\n\n\n

                    A-MPDU\u6269\u5c55<\/strong><\/p>\n\n\n\n

                    \u3000\u3000802.11ac\u4e2d\uff0c\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6548\u7387\u548c\u53ef\u9760\u6027\uff0c\u589e\u52a0\u4e86MPDU\u5e27\u7684\u5927\u5c0f\u548cA-MPDU\u5e27\u7684\u5927\u5c0f\uff0c\u957f\u5ea6\u9650\u5236\u4ece64k\u52301\u3002802.11ac\u53ea\u652f\u6301A-MPDU \u3002<\/p>\n\n\n\n

                    RTS\/CTS<\/strong><\/p>\n\n\n\n

                    \u3000\u3000Request To Send\/Clear To Send\uff0c\u8bf7\u6c42\u53d1\u9001\/\u5141\u8bb8\u53d1\u9001\uff09\u63e1\u624b\u534f\u8bae\uff0c\u53ef\u4ee5\u907f\u514d\u4fe1\u9053\u51b2\u7a81\u5bfc\u81f4\u7684\u6570\u636e\u4f20\u8f93\u5931\u8d25\u3002\u5f53AP\u5411\u67d0\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e\u7684\u65f6\u5019\uff0cAP\u4f1a\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aRTS\u62a5\u6587\uff0c\u8fd9\u6837\u5728AP\u8986\u76d6\u8303\u56f4\u5185\u7684\u6240\u6709\u8bbe\u5907\u5728\u6536\u5230RTS\u540e\u90fd\u4f1a\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u4e0d\u53d1\u9001\u6570\u636e\u3002\u76ee\u7684\u5ba2\u6237\u7aef\u6536\u5230RTS\u540e\uff0c\u53d1\u9001\u4e00\u4e2aCTS\u62a5\u6587\uff0c\u8fd9\u6837\u5728\u5ba2\u6237\u7aef\u8986\u76d6\u8303\u56f4\u5185\u6240\u6709\u7684\u8bbe\u5907\u90fd\u4f1a\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u4e0d\u53d1\u9001\u6570\u636e\u3002 <\/p>\n\n\n\n

                    \n\n802.11ac\u4e2d\uff0c\u589e\u5f3a\u5b9a\u4e49\u4e86RTS\/CTS\u673a\u5236\uff0c\u7528\u6765\u534f\u8c03\u4ec0\u4e48\u65f6\u5019\u4fe1\u9053\u53ef\u7528\u548c\u54ea\u4e9b\u4fe1\u9053\u53ef\u7528\uff0c\u5177\u4f53\u673a\u5236\u5982\u4e0b\uff1a\n\n<\/p>\n\n\n\n

                    1. 802.11ac\u8bbe\u5907\u5728\u5176\u4f7f\u7528\u7684\u4fe1\u9053\u5185\uff0c\u4ee520MHz\u4e3a\u5355\u4f4d\u7684\u5b50\u4fe1\u9053\u5185\u53d1\u9001RTS\u3002\u5f53\u4fe1\u9053\u5e26\u5bbd\u4e3a80M\u65f6\uff0c\u518d\u590d\u52363\u4efd\u5145\u6ee180MHz\uff1b\u5f53\u4fe1\u9053\u5e26\u5bbd\u4e3a160MHz\u65f6\uff0c\u590d\u52367\u4efd\uff0c\u5145\u6ee1160MHz\u3002\u8fd9\u6837\u505a\u7684\u53f7\u51fa\u662f\uff0c\u4e0d\u7ba1\u5468\u8fb9\u8bbe\u5907\u7684\u4e3b\u4fe1\u9053\u662f80M\u6216\u8005\u662f160M\u4fe1\u9053\u4e2d\u7684\u4efb\u610f20M\u90fd\u53ef\u4ee5\u4fa6\u542c\u5230RTS\u62a5\u6587\uff0c\u6bcf\u4e2a\u6536\u5230RTS\u62a5\u6587\u7684\u8bbe\u5907\u5c06\u865a\u62df\u8f7d\u6ce2\u4fa6\u542c\u8bbe\u4e3a\u5fd9 <\/li>
                    2. \u6536\u5230RTS\u62a5\u6587\u7684\u8bbe\u5907\u4f1a\u68c0\u6d4b\u5176\u4e3b\u4fe1\u9053\u6216\u800580M\u5e26\u5bbd\u5185\u7684\u5176\u4ed6\u5b50\u4fe1\u9053\u662f\u5426\u7e41\u5fd9\u3002\u5982\u679c\u4fe1\u9053\u5e26\u5bbd\u7684\u4e00\u90e8\u5206\u88ab\u4f7f\u7528\uff0c\u5219\u63a5\u6536\u8bbe\u5907\u53ea\u4f1a\u5728CTS\u5e27\u5185\u54cd\u5e94\u53ef\u7528\u768420MHz\u7684\u5b50\u5e26\u5bbd\uff0c\u5e76\u62a5\u544a\u91cd\u590d\u7684\u5e26\u5bbd <\/li>
                    3. \u5728\u6bcf\u4e2a\u53ef\u7528\u768420M\u7684\u5b50\u4fe1\u9053\u4e0a\u56de\u590dCTS\u62a5\u6587\uff0c\u8fd9\u6837\u53d1\u9001\u8bbe\u5907\u5c31\u77e5\u9053\u54ea\u4e9b\u4fe1\u9053\u53ef\u7528\uff0c\u54ea\u4e9b\u4fe1\u9053\u4e0d\u53ef\u7528\u3002\u6700\u7ec8\u53ea\u5728\u53ef\u7528\u7684\u4fe1\u9053\u4e0a\u53d1\u9001\u6570\u636e <\/li>
                    4. RTS\u548cCTS\u652f\u6301\u52a8\u6001\u9891\u5bbd\u6a21\u5f0f\uff0c\u5728\u6b64\u6a21\u5f0f\u4e0b\u5047\u5982\u90e8\u5206\u9891\u5bbd\u5df2\u88ab\u5360\u7528\u5219\u53ea\u5728\u4e3b\u7528\u9053\u4e0a\u53d1\u9001CTS\u5e27\u3002\u53d1\u9001RTS\u5e27\u7684\u5ba2\u6237STA\u5219\u53ef\u4ee5\u56de\u843d\u5230\u4e00\u4e2a\u8f83\u4f4e\u9891\u5bbd\u6a21\u5f0f <\/li><\/ol>\n\n\n\n

                      <\/p>\n\n\n\n

                      \u539f\u6587\uff1a https:\/\/www.cnblogs.com\/juankai\/p\/11340246.html<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

                      802.11b\/g\/n\u5b9a\u4e49\u57282.4GHz\u9891\u6bb5\u4e2d\uff0c802.11a\/n\/ac\u5de5\u4f5c\u57285GHz\u9891\u6bb5\u4e2d\uff1b<\/p>\n","protected":false},"author":1,"featured_media":1126,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79,63],"tags":[71,70],"_links":{"self":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1102"}],"collection":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1102"}],"version-history":[{"count":10,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1102\/revisions"}],"predecessor-version":[{"id":1131,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/posts\/1102\/revisions\/1131"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=\/wp\/v2\/media\/1126"}],"wp:attachment":[{"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1102"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iqotom.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}