{"id":2331,"date":"2019-04-15T03:33:14","date_gmt":"2019-04-15T03:33:14","guid":{"rendered":""},"modified":"2019-04-15T11:33:35","modified_gmt":"2019-04-15T03:33:35","slug":"%e6%97%a0%e7%ba%bf%e6%8a%80%e6%9c%af%e4%b9%8b802.11n%e6%8a%80%e6%9c%af%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2331","title":{"rendered":"\u65e0\u7ebf\u6280\u672f\u4e4b802.11n\u6280\u672f\u8bb2\u89e3"},"content":{"rendered":"

\n\t\u3000\u3000\u65e0\u7ebf\u6280\u672f\u51ed\u501f\u5176\u56fa\u6709\u7684\u7279\u6027\u4e0d\u65ad\u5730\u53d1\u5c55\u548c\u589e\u503c\u3002\u4ece\u6700\u5f00\u59cb\u7684802.11\u5230802.11 a\/b\uff0c\u518d\u5230802.11 g \u548c\u73b0\u5728\u7684802.11n\u6807\u51c6\u3002\u4ece\u5f00\u59cb\u5230\u6700\u7ec8\u83b7\u51c6\u6b63\u5f0f\u53d1\u5e03\u5177\u6709\u591a\u9879\u589e\u5f3a\u529f\u80fd\u7684\u534f\u8bae\u6807\u51c6\uff0c\u4e00\u5171\u82b1\u8d39\u4e86\u8d85\u8fc7\u4e03\u5e74\u7684\u65f6\u95f4\u3002<\/p>\n

\n\t\u3000\u3000802.11n\u6280\u672f<\/strong><\/p>\n

\n\t <\/div>\n

\n\t\u3000\u3000\u5728\u8fc7\u53bb\u7684\u4e03\u5e74\u91cc\uff0cIEEE\u6807\u51c6\u5316\u7ec4\u7ec7\u4e00\u76f4\u81f4\u529b\u4e8e\u7814\u7a76\u4e00\u5957\u65b0\u7684\u6807\u51c6\u3002\u65b0\u6807\u51c6\u5728\u63d0\u4f9b\u65b0\u529f\u80fd\u7684\u540c\u65f6\u4e5f\u6807\u51c6\u5316\u4e86802.11\u5c04\u9891\u529f\u80fd\u7684\u63d0\u5347\u3002\u65b0\u6807\u51c6\u660e\u663e\u6539\u8fdb\u4e86802.11\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3001\u65e0\u7ebf\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u7684\u53ef\u9884\u6d4b\u6027\u548c\u589e\u5f3a802.11\u8bbe\u5907\u603b\u7684\u541e\u5410\u91cf\u3002\u540c\u65f6\u5411\u540e\u517c\u5bb9\u4f20\u7edf\u7684802.11\u73af\u5883\u3002<\/p>\n

\n\t\u3000\u3000\u6700\u521d\u7684802.11n\u6807\u51c6\u5f88\u5927\u7a0b\u5ea6\u4e0a\u662f\u57fa\u4e8e802.11n Wi-Fi<\/u> \u8054\u76df2.0\u7248\u672c\u7684\u8349\u6848\uff0c\u5e76\u4e14\u5305\u62ec\u4e86\u4ee5\u4e0b\u7684\u5173\u952e\u8bbe\u5907\u8981\u6c42\u3002\u8fd9\u4e9b\u5173\u952e\u7684\u8bbe\u5907\u8981\u6c42\u73b0\u5df2\u5728\u6700\u7ec8\u7684\u7248\u672c\u91cc\u90fd\u5df2\u7ecf\u5305\u62ec\uff1a<\/p>\n

\n\t\u3000\u3000*MIMO-\u63cf\u8ff0\u4e86\u591a\u8fdb\u591a\u51fa\uff08MIMO\uff09\u6280\u672f\u7684\u4f7f\u7528\uff1b<\/p>\n

\n\t\u3000\u3000*\u5c04\u9891\u589e\u5f3a-\u589e\u52a0\u4e86\u4fe1\u9053\u5bb9\u91cf\uff0c\u66f4\u9ad8\u7684\u8c03\u5236\u901f\u7387\u548c\u66f4\u4f4e\u7684\u7cfb\u7edf\u5f00\u9500\uff1b<\/p>\n

\n\t\u3000\u3000*MAC \u589e\u5f3a-\u5728\u73b0\u6709802.11\u8bbe\u5907\u6570\u636e\u5e27\u7684\u57fa\u7840\u4e0a\u4fee\u6539\u4e86\u80fd\u4e3a802.11n\u4f7f\u6240\u7528\u7684\u5e27\u683c\u5f0f\uff1b<\/p>\n

\n\t\u3000\u3000MIMO<\/p>\n

\n\t\u3000\u3000\u591a\u8fdb\u591a\u51fa\uff08MIMO\uff09\u6280\u672f\u662f802.11n\u6807\u51c6\u7684\u6838\u5fc3\u3002\u8fd9\u4e2aMIMO\u6280\u672f\u7684\u8ba8\u8bba\u63d0\u4f9b\u4e86\u7406\u89e3802.11n\u5982\u4f55\u5b9e\u73b0600Mbps\u901f\u7387\u7684\u4e00\u4e2a\u57fa\u7840\u3002<\/p>\n

\n\t\u3000\u3000\u65e0\u7ebf\u901a\u4fe1<\/u>\u7684\u672c\u8d28\u662f\u5f88\u5bb9\u6613\u53d7\u5230\u5404\u79cd\u5e72\u6270\u3001\u5931\u771f\u6216\u566a\u58f0\u7684\u5f71\u54cd\u3002\u4e0e\u6709\u7ebf\u6280\u672f\u7c7b\u4f3c\uff0c\u4fe1\u566a\u6bd4\uff08SNR\uff09\u7684\u6548\u76ca\u5bf9\u9ad8\u6548\u6570\u636e\u4f20\u8f93\u7684\u80fd\u529b\u81f3\u5173\u91cd\u8981\u3002\u4fe1\u566a\u6bd4\u7684\u503c\u8d8a\u5927\uff0c\u4fe1\u53f7\u6240\u80fd\u627f\u8f7d\u7684\u4fe1\u606f\u91cf\u5c31\u8d8a\u591a\uff0c\u5e76\u4e14\u5728\u63a5\u6536\u7aef\u6240\u80fd\u590d\u539f\u7684\u4fe1\u606f\u91cf\u4e5f\u8d8a\u591a\u3002<\/p>\n

\n\t\u3000\u3000802.11n \u4f7f\u7528\u4e24\u79cd\u6709\u8da3\u7684\u6280\u672f\u6765\u6539\u5584\u4fe1\u566a\u6bd4\u548c\u5b58\u5728\u591a\u5f84\u6548\u5e94\u7684\u73af\u5883\uff1a\u6ce2\u675f\u6210\u5f62\u548c\u591a\u8def\u7a7a\u95f4\u5206\u96c6\u3002\u4e0b\u9762\u7684\u7ae0\u8282\u63cf\u8ff0\u4e86\u5b83\u4eec\u7684\u529f\u80fd\u4ee5\u53ca\u597d\u5904\u3002<\/p>\n

\n\t\u3000\u3000\u4f20\u8f93\u7684\u6ce2\u675f\u6210\u5f62\u6280\u672f<\/strong><\/p>\n

\n\t\u3000\u3000\u6ce2\u675f\u6210\u5f62\u662f\u5728\u4e00\u4e2a\u5f00\u653e\u6216\u8f83\u5c11\u969c\u788d\u7269\u7684\u73af\u5883\u4e0b\u6709\u591a\u6839\u53d1\u5c04\u5929\u7ebf\u548c\u5355\u6839\u63a5\u6536\u5929\u7ebf\u65f6\u4f7f\u7528\u7684\u4e00\u9879\u6280\u672f\u3002\u5f53\u6709\u591a\u6839\u53d1\u5c04\u5929\u7ebf\u65f6\uff0c\u6bcf\u4e2a\u88ab\u53d1\u9001\u7684\u5c04\u9891\u4fe1\u53f7\u5728\u4f20\u8f93\u65f6\u7531\u4e8e\u4f20\u8f93\u8def\u5f84\u4e0d\u540c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e0d\u540c\u7684\u76f8\u4f4d\u3002\u8fd9\u4e9b\u5dee\u503c\u5c06\u5f71\u54cd\u603b\u4f53\u7684\u4fe1\u566a\u6bd4\u3002\u901a\u8fc7\u8c03\u6574\u53d1\u5c04\u4fe1\u53f7\u7684\u76f8\u4f4d\u4ece\u800c\u5728\u63a5\u6536\u7aef\u5b83\u4eec\u80fd\u8fdb\u5f88\u597d\u5730\u5339\u914d\uff0c\u4fe1\u566a\u6bd4\u5c06\u4f1a\u6709\u5927\u5e45\u7684\u63d0\u9ad8\u3002\u56e0\u6b64\u53d1\u5c04\u7aef\u4fe1\u53f7\u5c31\u80fd\u627f\u8f7d\u66f4\u591a\u7684\u4fe1\u606f\u5e76\u4e14\u63a5\u6536\u7aef\u4e5f\u80fd\u590d\u539f\u66f4\u591a\u7684\u4fe1\u606f\u3002<\/p>\n

\n\t\u3000\u3000\u81f3\u6b64\uff0c\u6211\u4eec\u6ce8\u610f\u5230\u8fd9\u79cd\u7279\u6b8a\u7684\u65b9\u6cd5\u7d27\u5bc6\u5730\u4f9d\u8d56\u4e8e\u53d1\u5c04\u7aef\u548c\u63a5\u6536\u7aef\u4e4b\u95f4\u7684\u53cd\u9988\u673a\u5236\u3002\u63a5\u6536\u7aef\u63a5\u6536\u5230\u65e0\u7ebf\u4fe1\u53f7\u4e0a\u7684\u4fe1\u606f\u5c06\u4f1a\u8fd4\u56de\u5230\u53d1\u5c04\u7aef\uff0c\u4ece\u800c\u8ba9\u53d1\u5c04\u7aef\u53bb\u8c03\u6574\u5b83\u7684\u5c04\u9891\u4fe1\u53f7\u3002<\/p>\n

\n\t\u3000\u3000*\u5f53\u5b9e\u65bd\u6ce2\u675f\u6210\u5f62\u6280\u672f\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/strong><\/p>\n

\n\t\u3000\u30001. \u8fd9\u4e2a\u7279\u6b8a\u6280\u672f\u53ea\u5bf9802.11n\u53d1\u5c04\u7aef\u548c\u63a5\u6536\u7aef\u6709\u6548\uff1b<\/p>\n

\n\t\u3000\u30002. \u4ec5\u5e94\u7528\u5728\u53ea\u53d1\u9001\u4fe1\u53f7\u5230\u5355\u4e2a\u63a5\u6536\u7aef\u7684\u60c5\u51b5\u4e0b\uff1b<\/p>\n

\n\t\u3000\u30003. \u63a5\u6536\u7aef\u548c\u53d1\u5c04\u7aef\u4e4b\u95f4\u7684\u53cd\u9988\u673a\u5236\u4e0d\u662f\u76f4\u63a5\u548c\u77ac\u95f4\u7684\u3002\u5982\u679c\u53d1\u5c04\u7aef\u6216\u63a5\u6536\u7aef\u4f4d\u7f6e\u6539\u53d8\uff0c\u5219\u9700\u8981\u91cd\u5efa\u4e4b\u95f4\u7684\u5173\u7cfb\uff1b<\/p>\n

\n\t\u3000\u3000\u591a\u5f84\u6216\u7a7a\u95f4\u5206\u96c6<\/strong><\/p>\n

\n\t\u3000\u3000MIMO \u6280\u672f\u540c\u65f6\u5229\u7528\u591a\u4e2a\u5c04\u9891\u4fe1\u53f7\uff0c\u6bcf\u4e2a\u4fe1\u53f7\u7531\u5bf9\u5e94\u7684\u5929\u7ebf\u53d1\u9001\u51fa\u53bb\u5c5e\u4e8e\u81ea\u5df1\u7684\u7a7a\u95f4\u6d41\u3002\u5728\u5178\u578b\u7684\u65e0\u7ebf\u73af\u5883\u4e0b\uff0c\u4efb\u4f55\u7684\u53d1\u5c04\u4fe1\u53f7\u65e0\u7591\u90fd\u4f1a\u78b0\u5230\u4e00\u4e9b\u5e72\u6270\u6216\u53cd\u5c04\u4f53\u3002\u968f\u7740\u53d1\u5c04\u7aef\u6570\u91cf\u7684\u589e\u591a\uff0c\u53d1\u5c04\u4fe1\u53f7\u7684\u6570\u91cf\u4e5f\u4f1a\u589e\u591a\u3002\u56e0\u6b64\uff0c\u4fe1\u53f7\u5c06\u4ece\u4e0d\u540c\u7684\u8def\u5f84\u5728\u4e0d\u540c\u7684\u65f6\u95f4\u88ab\u63a5\u6536\u3002\u8fd9\u79cd\u60c5\u51b5\u88ab\u79f0\u4e3a\u591a\u5f84\u3002<\/p>\n

\n\t\u3000\u3000\u7531\u4e8e\u6bcf\u4e2a\u5929\u7ebf\u7684\u529f\u80fd\u5f7c\u6b64\u72ec\u7acb\uff0c\u4e0d\u540c\u6570\u636e\u6d41\u6709\u81ea\u5df1\u7684\u53d1\u5c04\u6e90\u3002\u5728\u63a5\u6536\u7aef\uff0c\u6765\u81ea\u4e8e\u6bcf\u4e2a\u5c04\u9891\u7684\u6bcf\u4e2a\u6570\u636e\u6d41\u4f1a\u88ab\u7ec4\u5408\u8d77\u6765\uff0c\u5728\u590d\u6742\u7684\u8fd0\u7b97\u4e4b\u540e\uff0c\u5f62\u6210\u4e00\u4e2a\u66f4\u6e05\u6670\u6216\u66f4\u5f3a\u7684\u4fe1\u53f7\u4ece\u800c\u8fbe\u5230\u66f4\u9ad8\u7684\u4fe1\u566a\u6bd4\u3002<\/p>\n

\n\t\u3000\u3000\u5c04\u9891\u589e\u5f3a<\/strong><\/p>\n

\n\t\u3000\u3000\u9664\u4e86\u5f15\u5165\u66f4\u9ad8\u6548\u7684\u5929\u7ebf\u4ee5\u5916\uff0c802.11n\u505a\u4e86\u989d\u5916\u7684\u5c04\u9891\u6539\u8fdb\u6765\u63d0\u9ad8WLAN\u7684\u6709\u6548\u541e\u5410\u91cf\u3002\u5176\u4e2d\u6700\u91cd\u8981\u7684\u6539\u8fdb\u662f\u589e\u52a0\u9891\u5e26\u5bbd\u5ea6\u3001\u91c7\u7528\u66f4\u9ad8\u7684\u8c03\u5236\u901f\u7387\u548c\u51cf\u5c11\u5f00\u9500\u3002\u4e0b\u9762\u7684\u7ae0\u8282\u5c06\u63cf\u8ff0\u6bcf\u4e2a\u6539\u8fdb\u548c\u5b83\u4eec\u5bf9WLAN\u541e\u5410\u91cf\u7684\u5f71\u54cd\u3002<\/p>\n

\n\t\u3000\u300020MHz\u53ca40MHz\u4fe1\u9053<\/strong><\/p>\n

\n\t\u3000\u3000\u4e3a\u4e86\u7406\u89e3\u5c04\u9891\u589e\u5f3a\u6280\u672f\u53ca\u5176\u5bf9WLAN\u6027\u80fd\u7684\u603b\u4f53\u63d0\u5347\uff0c\u6709\u5fc5\u8981\u5bf9\u9891\u8c31\u6548\u7387\u548c\u4fe1\u9053\u7ed1\u5b9a\u7684\u80cc\u666f\u77e5\u8bc6\u6709\u6240\u4e86\u89e3\u3002<\/p>\n

\n\t\u3000\u3000\u5728\u6700\u521d\u7684802.11\u548c802.11b\u6807\u51c6\u91cc\uff0c\u4ed6\u4eec\u7684\u9891\u8c31\u6548\u7387\u6216\u9891\u5bbd\u4e3a0.5 bits\/Hz\uff1b802.11a\u548c802.11g\u7684\u9891\u8c31\u6548\u7387\u4e3a2.7 bits\/Hz@ 54Mbps\u3002\u9891\u8c31\u6548\u7387\u8d8a\u9ad8\uff0c\u6709\u9650\u7684\u9891\u5e26\u7a7a\u95f4\u5229\u7528\u6548\u7387\u4e5f\u8d8a\u9ad8\u3002<\/p>\n

\n\t\u3000\u3000\u9664\u4e86\u9891\u8c31\u6548\u7387\u5916\uff0c\u4e00\u4e9b\u4e13\u6709\u7684WLAN \u7cfb\u7edf\u4f7f\u7528\u88ab\u79f0\u4e3a“Super G”\u6216“\u4fe1\u9053\u7ed1\u5b9a”\u7684\u667a\u80fd\u6280\u672f\u6765\u7ed1\u5b9a\u4e24\u4e2a802.11g\uff0854Mbps\uff09\u9891\u9053\u6765\u63d0\u4f9b\u9ad8\u8fbe108Mpbs\u7684\u901f\u7387\u3002<\/p>\n

\n\t\u3000\u3000\u901a\u8fc7\u4fe1\u9053\u7ed1\u5b9a\u6280\u672f\uff0c\u867d\u7136\u9891\u8c31\u6548\u7387\u4e0e802.11a\u548c802.11g\u4e00\u6837\uff0c\u4f46\u662f\u9891\u5e26\u5bbd\u5ea6\u5374\u662f\u4e24\u500d\u3002\u8fd9\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e24\u500d\u6570\u636e\u4f20\u8f93\u901f\u7387\u7684\u7b80\u5355\u65b9\u6cd5\u3002<\/p>\n

\n\t\u3000\u3000\u5728\u65b0\u7684802.11n\u6807\u51c6\u4e2d\u4e00\u4e2a\u5173\u952e\u7684\u589e\u5f3a\u529f\u80fd\u662f\u9ad8\u6548\u5730\u4f7f\u7528\u4e8620MHz\u53ca40MHz\u7684\u4fe1\u9053\u3002\u4e0e\u5176\u5b83\u4e13\u6709\u4ea7\u54c1\u7c7b\u4f3c\uff0c802.11n\u6807\u51c6\u4e2d40MHz\u7684\u4fe1\u9053\u7531\u4e24\u4e2a20MHz\u7684\u4fe1\u9053\u7ed1\u5b9a\u7ec4\u6210\u3002\u4f7f\u752840MHz\u7ed1\u5b9a\u4fe1\u9053\uff0c802.11n\u5229\u7528\u6bcf\u4e2a20MHz\u4fe1\u9053\u5728\u9891\u5e26\u7684\u9876\u90e8\u53ca\u5e95\u90e8\u4fdd\u7559\u7528\u6765\u964d\u4f4e\u76f8\u90bb\u4fe1\u9053\u5e72\u6270\u7684\u5c11\u91cf\u4fe1\u9053\u6765\u4f20\u8f93\u4fe1\u53f7\u3002\u4f4e\u4fe1\u9053\u7684\u9876\u90e8\u548c\u9ad8\u4fe1\u9053\u7684\u5e95\u90e8\u5c06\u4e0d\u518d\u4fdd\u7559\u7528\u6765\u907f\u514d\u5e72\u6270\u3002\u8fd9\u4e9b\u4e00\u5c0f\u90e8\u5206\u7684\u4fe1\u9053\u53ef\u7528\u4e8e\u627f\u8f7d\u4fe1\u606f\u3002\u901a\u8fc7\u8fd9\u79cd\u66f4\u9ad8\u6548\u5730\u4f7f\u7528\u4e24\u4e2a20MHz\u4fe1\u9053\u7684\u65b9\u6cd5\uff0c\u5f53\u4ece20MHz\u8fc7\u6e21\u523040MHz\u4fe1\u9053\u65f6\uff0c802.11n\u53ef\u5b9e\u73b0\u7565\u9ad8\u4e8e\u539f\u672c20MHz\u4e24\u500d\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff08\u53c2\u89c1\u56fe1\uff09\u3002<\/p>\n

\n\t\u3000\u3000<\/p>\n

\n\t\"NETGEAR<\/p>\n

\n\t\u3000\u3000\u56fe1\uff1a20MHz\u548c40MHz\u4fe1\u9053<\/p>\n

\n\t\u3000\u3000\u66f4\u9ad8\u7684\u8c03\u5236\u901f\u7387<\/strong><\/p>\n

\n\t\u3000\u3000802.11n\u6807\u51c6\u4f7f\u7528\u4e00\u4e2a\u4f17\u6240\u5468\u77e5\u7684\u88ab\u79f0\u4e3a\u6b63\u4ea4\u9891\u5206\u590d\u7528\uff08OFDM<\/u>\uff09\u7684\u8c03\u5236\u89e3\u8c03\u6280\u672f\uff0c\u5b83\u628a\u4e00\u4e2a\u5c04\u9891\u4fe1\u9053\u5206\u5272\u6210\u5927\u91cf\u7684\u66f4\u5c0f\u7684\u5177\u6709\u81ea\u5df1\u5b50\u8f7d\u6ce2\u4fe1\u53f7\u7684\u4fe1\u9053\uff08\u53c2\u89c1\u4e0a\u56fe1\uff09\u3002\u6bcf\u4e2a\u8f7d\u6ce2\u4fe1\u53f7\u90fd\u72ec\u7acb\u5730\u627f\u8f7d\u4fe1\u606f\u3002\u5c31\u50cf\u628a\u4e00\u7ec4\u72ec\u7acb\u7684\u5c04\u9891\u6346\u7ed1\u5728\u4e00\u8d77\u540c\u65f6\u8fdb\u884c\u4f20\u8f93\u3002<\/p>\n

\n\t\u3000\u3000802.11n\u6807\u51c6\u5728\u6bcf\u4e2a20MHz\u4fe1\u9053\u4e2d\u5b50\u8f7d\u6ce2\u7684\u6570\u91cf\u4ece48 \u4e2a\u589e\u52a0\u523052 \u4e2a\u3002\u5bf9\u4e8e\u53ea\u6709\u5355\u4e2a\u4f20\u8f93\u5c04\u9891\u7684\u7cfb\u7edf\uff0c\u8fd9\u7a0d\u5fae\u589e\u52a0\u6570\u636e\u4f20\u8f93\u901f\u7387\u5230\u6700\u592765Mbps\u3002802.11n\u4e3a\u4e00\u4e2a\u53d1\u5c04\u5668\u63d0\u4f9b8\u4e2a\u901f\u7387\u53ef\u4f9b\u4f7f\u7528\uff0c\u540c\u65f6\u53ef\u4f7f\u7528\u7684\u53d1\u5c04\u5668\u7684\u6570\u91cf\u589e\u52a0\u52304 \u4e2a\u3002\u5bf9\u4e8e\u4e24\u4e2a\u53d1\u5c04\u5668\uff0c\u6700\u5927\u7684\u901f\u7387\u53ef\u8fbe\u5230130Mbps\u3002\u4e09\u4e2a\u53d1\u5c04\u5668\u5219\u53ef\u63d0\u4f9b\u6700\u5927195Mbps\u7684\u901f\u7387\u3002\u6700\u591a\u56db\u4e2a\u53d1\u5c04\u5668\u53ef\u8fbe\u5230260Mbps\u3002\u572820MHz\u4fe1\u9053802.11n\u603b\u5171\u80fd\u63d0\u4f9b\u591a\u8fbe32 \u4e2a\u901f\u7387\u96c6\u3002<\/p>\n

\n\t\u3000\u3000\u5f53\u4f7f\u752840MHz\u4fe1\u9053\u65f6\uff0c802.11n\u589e\u52a0\u5b50\u8f7d\u6ce2\u7684\u6570\u91cf\u5230108 \u4e2a\u3002\u4ece\u800c\u4e3a1 \u52304 \u4e2a\u53d1\u5c04\u5668\u5206\u522b\u63d0\u4f9b\u6700\u5927135Mbps\uff0c270 Mbps\uff0c405 Mbps \u548c540 Mbps\u7684\u901f\u7387\u3002\u76f8\u540c\u5730\uff0c40MHz\u6bcf\u4e2a\u53d1\u5c04\u5668\u67098\u4e2a\u901f\u7387\u96c6\uff0c\u603b\u8ba132 \u4e2a\u901f\u7387\u96c6\u3002<\/p>\n

\n\t\u3000\u3000\u964d\u4f4e\u5f00\u9500\uff1a\u4fdd\u62a4\u95f4\u9694<\/strong><\/p>\n

\n\t\u3000\u3000OFDM\u5305\u542b\u4e00\u79cd\u591a\u5f84\u73af\u5883\u4e0b\u9632\u6b62\u7801\u95f4\u5e72\u6270\u7684\u5b89\u5168\u673a\u5236\u3002\u5728\u524d\u4e00\u4e2a\u7b26\u53f7\u8fd8\u672a\u88ab\u5b8c\u5168\u63a5\u6536\u4e00\u4e2a\u65b0\u7684\u7b26\u53f7\u5c31\u5df2\u5230\u8fbe\u63a5\u6536\u7aef\u7684\u60c5\u51b5\u4e0b\u4ea7\u751f\u4e86\u7801\u95f4\u5e72\u6270\uff08\u53c2\u89c1\u56fe2\uff09\u3002<\/p>\n

\n\t\u3000\u3000<\/p>\n

\n\t\"NETGEAR<\/p>\n

\n\t\u3000\u3000\u56fe2\uff1a\u4fdd\u62a4\u95f4\u9694<\/p>\n

\n\t\u3000\u3000802.11n\u4f7f\u7528800\u7eb3\u79d2\u7684\u4fdd\u62a4\u95f4\u9694\uff0c\u5141\u8bb8800\u82f1\u5c3a\u7684\u591a\u5f84\u5dee\u5f02\u3002\u7136\u800c\uff0c\u5047\u5b9a\u63a5\u6536\u5668\u548c\u53d1\u5c04\u5668\u4e4b\u95f4800\u82f1\u5c3a\u7684\u591a\u5f84\u5dee\u5f02\u5bf9\u4e8e\u591a\u5f84\u73af\u5883\u6765\u8bf4\u5e76\u4e0d\u592a\u4e25\u683c\uff0c\u8fd9\u65f6\u53ef\u4ee5\u964d\u4f4e\u4fdd\u62a4\u95f4\u9694\u3002802.11n \u7684\u4fdd\u62a4\u95f4\u9694\u80fd\u591f\u88ab\u914d\u7f6e\u6210400 \u7eb3\u79d2\u62164\u5fae\u79d2\u3002\u8fd9\u4e2a\u5c0f\u7684\u6539\u52a8\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\u3002\u5bf9\u4e8e20MHz\u4fe1\u9053\u800c\u8a00\uff0c\u964d\u4f4e\u4fdd\u62a4\u95f4\u9694\u540e1 \u52304 \u4e2a\u53d1\u5c04\u5668\u7684\u6700\u5927\u901f\u7387\u53ef\u5206\u522b\u53ef\u8fbe\u523072Mbps\u3001144Mbps\u3001216Mbps\u548c288Mbps\uff1b\u5bf9\u4e8e40MHz \u4fe1\u9053\uff0c\u6700\u5927\u901f\u7387\u53ef\u8fbe\u5230150Mbps\u3001300Mbps\u3001450Mbps\u548c600Mbps\u3002<\/p>\n

\n\t\u3000\u3000MAC\u5c42\u589e\u5f3a<\/p>\n

\n\t\u3000\u3000\u5728\u524d\u9762\u7684\u6587\u7ae0\u4e2d\u6211\u4eec\u4e86\u89e3\u5230\u5c04\u9891\u7684\u6539\u5584\u5982\u4f55\u63d0\u9ad8\u4e86\u4f20\u8f93\u7684\u6027\u80fd\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u6539\u8fdb\u4e5f\u4ec5\u4ec5\u662f\u6027\u80fd\u7684\u63d0\u5347\u3002<\/p>\n

\n\t\u3000\u3000\u6bcf\u4e2a\u6570\u636e\u62a5\u6587\u6216\u6570\u636e\u5e27\u90fd\u6709\u4e00\u5b9a\u7684\u5f00\u9500\u3002\u66f4\u51c6\u786e\u5730\u8bf4\uff0c\u5c31\u662fMAC\u5c42\u534f\u8bae\u7684\u5f00\u9500\u3002\u9664\u8fd9\u4e9b\u5f00\u9500\u4e4b\u5916\uff0c\u5e27\u95f4\u95f4\u9694\u548c\u786e\u8ba4\u673a\u5236\u4e5f\u4f1a\u964d\u4f4e\u6709\u6548\u7684\u6700\u5927\u541e\u5410\u91cf\u3002802.11n\u5f15\u5165\u4e86\u4e00\u4e9b\u6539\u8fdb\u6765\u4f18\u5316MAC\u5c42\u534f\u8bae\u7684\u5f00\u9500\u3002<\/p>\n

\n\t\u3000\u3000\u4e3a\u4e86\u51cf\u5c11\u5f00\u9500\uff0c802.11n\u5f15\u5165\u4e86\u5e27\u805a\u5408\u3002\u5e27\u805a\u5408\u672c\u8d28\u4e0a\u662f\u5c06\u4e24\u4e2a\u6216\u66f4\u591a\u7684\u5e27\u7ec4\u5408\u6210\u4e00\u4e2a\u6570\u636e\u5e27\u8fdb\u884c\u4f20\u8f93\u3002802.11n\u63d0\u4f9b\u4e86\u4e24\u79cd\u5e27\u805a\u5408\u7684\u65b9\u6cd5\uff1aMAC\u670d\u52a1\u6570\u636e\u5355\u5143\uff08MSDU\uff09\u805a\u5408\u548c\u4fe1\u606f\u534f\u8bae\u6570\u636e\u5355\u5143\uff08MSDU\uff09\u805a\u5408\u3002\u4e24\u79cd\u805a\u5408\u65b9\u5f0f\u51cf\u5c11\u5f00\u9500\u5230\u6bcf\u6b21\u6570\u636e\u5e27\u4f20\u8f93\u65f6\u53ea\u6709\u4e00\u4e2a\u5c04\u9891\u524d\u5bfc\uff08\u53c2\u89c1\u56fe3\uff09\u3002<\/p>\n

\n\t\u3000\u3000<\/p>\n

\n\t\"NETGEAR<\/p>\n

\n\t\u3000\u3000\u56fe 3\uff1a\u5e27\u805a\u5408<\/p>\n

\n\t\u3000\u3000MAC \u534f\u8bae\u6570\u636e\u5355\u5143\u805a\u5408\uff08A-MPDU\uff09<\/p>\n

\n\t\u3000\u3000A-MPDU\u7684\u5de5\u4f5c\u673a\u5236\u548cA-MSDU\u4e0d\u540c\u3002MPDU\u805a\u5408\u628a\u6bcf\u4e2a\u4ee5\u592a\u7f51<\/u>\u5e27\u8f6c\u6362\u6210802.11\u7684\u683c\u5f0f\u7136\u540e\u518d\u5c06\u8fd9\u4e9b\u5e27\u6309\u76f8\u540c\u7684\u76ee\u7684\u5730\u5740\u641c\u96c6\u8d77\u6765\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u641c\u96c6\u4ee5\u592a\u7f51\u5e27\u3002\u56e0\u4e3a\u641c\u96c6\u7684\u6570\u636e\u5e27\u5df2\u7ecf\u5c01\u88c5\u4e86802.11MAC\u5e27\u5934\uff0c\u4ece\u800c\u4e0d\u518d\u9700\u8981\u5c01\u88c5\u53e6\u5916\u7684802.11\u5e27\u7ed3\u6784\uff08\u53c2\u89c1\u56fe4\uff09\u3002<\/p>\n

\n\t\u3000\u3000<\/p>\n

\n\t\"\"<\/p>\n

\n\t\u3000\u3000\u56fe 4\uff1a A-MPDU\u5e27<\/p>\n

\n\t\u3000\u3000\u56e0\u4e3a\u989d\u5916\u5f00\u9500\u662f\u805a\u5408\u5e27\u7684\u4e00\u90e8\u5206\uff0c\u6240\u4ee5MPDU\u6548\u7387\u8f83\u4f4e\u3002\u56fe4 \u663e\u793a\u7684\u662f\u5177\u6709\u4e00\u4e2a\u5305\u5934\u548c\u6709\u6548\u6570\u636e\u7684\u6570\u636e\u5e27\u683c\u5f0f\u3002\u6b64\u5916\uff0c\u5f53\u628a\u52a0\u5bc6\u5305\u62ec\u5728\u5185\u65f6\u6548\u7387\u5c06\u4f1a\u8fdb\u4e00\u6b65\u964d\u4f4e\u3002<\/p>\n

\n\t\u3000\u3000\u53e6\u5916\u4e00\u4e2a\u503c\u5f97\u5173\u6ce8\u7684\u7279\u6027\u662f\u90e8\u5206A-MPDU\u91c7\u7528\u5757\u786e\u8ba4\u673a\u5236\u3002\u901a\u8fc7\u5757\u786e\u8ba4\u673a\u5236\uff0c\u63a5\u6536\u65b9\u8fd4\u56de\u4e00\u4e2aACK\u786e\u8ba4\u5e27\u7ed9\u53d1\u9001\u65b9\u4f5c\u4e3a\u5bf9\u4efb\u610f\u672a\u88ab\u786e\u8ba4\u7684\u5e27\u7684\u7edf\u4e00\u786e\u8ba4\u3002\u5728\u5927\u91cf\u9519\u8bef\u4e0d\u53ef\u907f\u514d\u7684\u73af\u5883\u4e0b\uff0c\u786e\u8ba4\u5e27\u6570\u91cf\u7684\u51cf\u5c11\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

\n\t\u3000\u3000MAC \u670d\u52a1\u6570\u636e\u5355\u5143\u805a\u5408\uff08A-MSDU\uff09<\/p>\n

\n\t\u3000\u3000A-MSDU\u662f\u4e24\u79cd\u5e27\u805a\u5408\u4e2d\u66f4\u9ad8\u6548\u7684\u4e00\u79cd\u3002A-MSDU\u7684\u5de5\u4f5c\u673a\u5236\u662f\u805a\u5408\u5177\u6709\u76f8\u540c\u76ee\u7684\u5730\u7684\u4ee5\u592a\u7f51\u5e27\uff0c\u5e76\u5c01\u88c5\u5b83\u4eec\u5230\u4e00\u4e2a802.11\u5e27\u91cc\u7136\u540e\u4f20\u8f93\u8fd9\u4e2a802.11\u5c01\u88c5\u7684\u805a\u5408\u4ee5\u592a\u7f51\u5e27\uff08\u53c2\u89c1\u56fe5\uff09\u3002<\/p>\n

\n\t\u3000\u3000<\/p>\n

\n\t\"NETGEAR<\/p>\n

\n\t\u3000\u3000\u56fe5\uff1aMSDU\u805a\u5408\u5e27<\/p>\n

\n\t\u3000\u3000\u4e0eMPDU\u805a\u5408\u5e27\u4e2d\u7684\u6bcf\u4e2a\u5b50\u5e27\u90fd\u6709\u4e00\u4e2a\u5e27\u5934\u4e0d\u540c\uff0cMSDU\u53ea\u5305\u542b\u4e00\u4e2a\u7531radi<\/u>o preamble\u3001radio header\u548cMAC header\u7ec4\u6210\u7684\u5e27\u5934\u3002\u53e6\u5916\uff0cMSDU\u4ec5\u5bf9\u6574\u4e2a\u805a\u5408\u5e27\u52a0\u5bc6\uff0c\u7136\u800cMPDU \u6bcf\u4e2a\u5355\u72ec\u7684\u6570\u636e\u5e27\u90fd\u88ab\u52a0\u5bc6\u3002<\/p>\n

\n\t\u3000\u3000\u4e0eMPDU\u76f8\u4f3c\uff0cMSDU \u805a\u5408\u5e27\u4e2d\u7684\u6240\u6709\u5e27\u5fc5\u987b\u6709\u76f8\u540c\u7684QoS\u7b49\u7ea7\u3002\u4e0d\u5141\u8bb8\u5c06\u8bed\u97f3\u5e27\u548cbest-effort\u5e27\u5408\u6210\u4e00\u4e2a\u805a\u5408\u5e27\u3002<\/p>\n

\n\t\u3000\u3000\u968f\u7740802.11n\u6807\u51c6\u7684\u6b63\u5f0f\u53d1\u5e03\uff0c\u65e0\u7ebf\u6280\u672f\u53d8\u5f97\u8d8a\u6765\u8d8a\u6210\u719f\u5e76\u901a\u8fc7\u5173\u952e\u529f\u80fd\u7684\u5b9e\u73b0\u4e3a\u76ee\u524d\u53ca\u5c06\u6765\u7684\u4f01\u4e1a\u5e26\u6765\u66f4\u5927\u7684\u597d\u5904\u3002<\/p>\n

\n\t\u3000\u3000802.11n\u6807\u51c6\u7684\u589e\u5f3a\u529f\u80fd\u5177\u6709\u4ee5\u4e0b\u7684\u5173\u952e\u597d\u5904\uff1a<\/p>\n