{"id":47798,"date":"2007-06-06T00:00:00","date_gmt":"2007-06-06T00:00:00","guid":{"rendered":"https:\/\/www.cpr.cuhk.edu.hk\/press\/cuhk-embarks-on-the-next-information-revolution-network-coding-theory\/"},"modified":"2007-06-06T00:00:00","modified_gmt":"2007-06-06T00:00:00","slug":"cuhk-embarks-on-the-next-information-revolution-network-coding-theory","status":"publish","type":"press","link":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/press\/cuhk-embarks-on-the-next-information-revolution-network-coding-theory\/","title":{"rendered":"\u6e90\u81ea\u4e2d\u5927\u7684\u7db2\u7d61\u9769\u547d &#8211; \u7db2\u7d61\u7de8\u78bc\u7406\u8ad6"},"content":{"rendered":"","protected":false},"featured_media":0,"template":"","tags":[],"class_list":["post-47798","press","type-press","status-publish","hentry"],"acf":{"title_alt":"","sub_title_alt":"","press_date":"20070606","keep":false,"details":"<p>\t\u4eca\u671f\u7684\u516d\u6708\u865f\u300a\u79d1\u5b78\u7f8e\u570b\u4eba\u300b(<em>Scientific American<\/em>) 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theory)\u3002\u300a\u79d1\u5b78\u7f8e\u570b\u4eba\u300b\u59cb\u65bc1845\u5e74\uff0c\u662f\u7f8e\u570b\u6b77\u53f2\u6700\u60a0\u4e45\u7684\u6b0a\u5a01\u79d1\u666e\u671f\u520a\u3002<\/p><p>\t\u8981\u7406\u89e3\u88ab\u300a\u79d1\u5b78\u7f8e\u570b\u4eba\u300b\u55bb\u70ba\u5c07\u6703\u6fc0\u8d77\u4e0b\u4e00\u500b\u7db2\u7d61\u9769\u547d\u7684\u7db2\u7d61\u7de8\u78bc\u7406\u8ad6\uff0c\u5fc5\u9808\u660e\u767d\u7db2\u7d61\u7684\u539f\u7406\u3002\u76f8\u4fe1\u5927\u90e8\u5206\u9999\u6e2f\u4eba\u6df1\u660e\u585e\u8eca\u585e\u4eba\u4e4b\u82e6\uff0c\u5176\u5be6\u4e92\u806f\u7db2\u4ea6\u6703\u56e0\u7db2\u7d61\u7e41\u5fd9\u800c\u5927\u585e\u8eca\u3002\u4e92\u806f\u7db2\u5b9b\u5982\u5de8\u578b\u4ea4\u901a\u7db2\uff0c\u7531\u7121\u6578\u8def\u7531\u5668(routers) \u63a5\u901a\uff0c\u8def\u7531\u5668\u7684\u89d2\u8272\u597d\u6bd4\u4ea4\u901a\u8b66\uff0c\u8a0a\u606f\u5728\u7db2\u4e0a\u50b3\u9001\u6709\u8cf4\u6578\u64da\u5305(packets) \u70ba\u8f09\u9ad4(carriers)\uff0c\u5305\u5167\u4e58\u8f09\u540c\u4e00\u8a0a\u606f\u7684\u4f4d\u5143(bits)\uff0c\u5b83\u5c31\u5982\u4e00\u8f1b\u8eca\uff0c\u4f9d\u9760\u8def\u7531\u5668\u7684\u6307\u5f15\u5230\u9054\u76ee\u7684\u5730\u3002<\/p><p>\t\u4e00\u76f4\u4ee5\u4f86\uff0c\u7121\u6578\u7684\u79d1\u5b78\u5bb6\u82b1\u76e1\u5fc3\u601d\u53bb\u7814\u7a76\u5982\u4f55\u589e\u52a0\u7db2\u7d61\u7684\u6548\u80fd\u3002\u70ba\u4e86\u6e1b\u5c11\u8a0a\u606f\u80fd\u91cf\u7684\u6d41\u5931\uff0c\u524d\u4e2d\u5927\u6821\u9577\u3001\u5149\u7e96\u4e4b\u7236\u9ad8\u9315\u767c\u660e\u4e86\u5149\u7e96\uff0c\u53d6\u4ee3\u9285\u88fd\u7dda\u8def\uff0c\u6fc0\u8d77\u4e00\u5834\u901a\u8a0a\u4e8b\u696d\u7684\u9769\u547d\uff0c\u6253\u958b\u4e86\u5149\u5c0e\u65b0\u4e16\u754c\u7684\u5927\u9580\u3002\u5728\u63d0\u9ad8\u7db2\u7d61\u6548\u7387\u4e0a\uff0c\u79d1\u5b78\u5bb6\u4e0d\u65b7\u7814\u7a76\u66f4\u6709\u6548\u7684\u4ea4\u63db\u7406\u8ad6(Switching Theory) \u4f9b\u8def\u7531\u5668\u4f7f\u7528\u3002\u9019\u4e9b\u7814\u7a76\u5927\u90e8\u5206\u90fd\u662f\u73fe\u6709\u7cfb\u7d71\u7684\u4f38\u5ef6\uff0c\u8ab0\u4e5f\u6c92\u6709\u60f3\u904e\u8def\u7531\u5668\u662f\u5426\u771f\u7684\u80fd\u5920\u63d0\u4f9b\u6700\u4f73\u7684\u89e3\u6c7a\u65b9\u6cd5\uff0c\u9664\u4e86\u8def\u7531\u5668\u4e4b\u5916\u9084\u6709\u5176\u4ed6\u9078\u64c7\u55ce\uff1f<\/p><p>\t\u76f4\u81f3\u4e03\u5e74\u524d\uff0c\u4e0a\u8ff0\u5e7e\u4f4d\u4e2d\u5927\u6559\u6388\u63d0\u51fa\u4e86\u7a81\u7834\u6027\u7db2\u7d61\u7de8\u78bc\u7406\u8ad6\uff0c\u5f9e\u6b64\u65b0\u4e00\u500b\u7db2\u7d61\u9769\u547d\u4fbf\u958b\u59cb\u4e86\u3002\u7406\u8ad6\u63d0\u51fa\u4ee5\u7de8\u78bc\u5668\u53d6\u4ee3\u8def\u7531\u5668\uff0c\u767c\u9001\u6709\u95dc\u8a0a\u606f\u7684\u8b49\u64da(evidence about the messages)\uff0c\u800c\u975e\u6574\u500b\u8a0a\u606f\u7684\u672c\u8eab\u3002\u63a5\u6536\u5668(receiver) \u6536\u5230\u8b49\u64da\u4fbf\u9032\u884c\u91cd\u7d44\u9084\u5143\u8a0a\u606f\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u5c6c\u65bc\u540c\u4e00\u8a0a\u606f\u7684\u4f4d\u5143\u7121\u9808\u518d\u50cf\u73fe\u6642\u822c\u8655\u65bc\u540c\u4e00\u6578\u64da\u5305\uff0c\u7db2\u7d61\u7de8\u78bc\u7406\u8ad6\u6703\u81ea\u52d5\u628a\u4e0d\u540c\u7684\u8a0a\u606f\u9032\u884c\u7de8\u78bc\u3001\u7576\u5230\u9054\u76ee\u7684\u5730\u6642\u518d\u91cd\u65b0\u7d44\u5408\uff0c\u9019\u6a23\u4fbf\u5927\u5927\u63d0\u9ad8\u4e86\u7db2\u7d61\u7684\u5bb9\u91cf\u548c\u6548\u7387\u3002<\/p><p>\t\u96a8\u5f8c\u674e\u6559\u6388\u3001\u694a\u6559\u6388\u548c\u8521\u535a\u58eb\u6191\u8457\u4ed6\u5011\u7684\u7b2c\u4e8c\u4efd\u76f8\u95dc\u8ad6\u6587\u300c\u7dda\u6027\u7db2\u7d61\u7de8\u78bc\u300d(Linear Network Coding) \u7372\u9812\u4e8c\u96f6\u96f6\u4e94\u5e74\u5ea6IEEE\u96fb\u6a5f\u53ca\u96fb\u5b50\u5de5\u7a0b\u5e2b\u5b78\u6703\u4fe1\u606f\u7406\u8ad6\u5b78\u6703\u8ad6\u6587\u734e\u3002\u9019\u662f\u9996\u6b21\u6709\u672c\u6e2f\u5b78\u8005\u7372\u5f97\u9019\u8ad6\u6587\u734e\uff0c\u4ea6\u662f\u4e09\u5341\u591a\u5e74\u4f86\u9996\u6b21\u7531\u4e9e\u6d32\u7814\u7a76\u4eba\u54e1\u7372\u734e\u3002<\/p><p>\t\u7db2\u7d61\u7de8\u78bc\u5e36\u7d66\u7db2\u7d61\u61c9\u7528\u4e00\u5834\u7bc4\u5f0f\u9769\u547d\u3002\u5fae\u8edf\u516c\u53f8\u4ea6\u4ee5\u7db2\u7d61\u7de8\u78bc\u4f5c\u70ba\u6838\u5fc3\u6280\u8853\u958b\u767c\u51fa\u540d\u70ba\u300c\u96ea\u5d29\u300d(Avalanche) \u7684P2P\u539f\u578b\u8edf\u4ef6\u3002\u7531\u65bcP2P\u901a\u8a0a\u4f54\u4e92\u806f\u7db2\u983b\u5bec60%\u4ee5\u4e0a\uff0c\u7db2\u7d61\u7de8\u78bc\u5c07\u6703\u7522\u751f\u6df1\u9060\u7684\u5f71\u97ff\u3002\u9810\u6599\u672a\u4f86\u5341\u5e74\uff0c\u5f9e\u96fb\u8166\u901a\u8a0a\u3001\u7121\u7dda\u96fb\u901a\u8a0a\u3001\u4ee5\u81f3\u65bc\u5176\u4ed6\u5404\u985e\u901a\u8a0a\uff0c\u90fd\u6703\u5ee3\u6cdb\u5730\u61c9\u7528\u7db2\u7d61\u7de8\u78bc\u3002<\/p><p>\t\u9999\u6e2f\u4e2d\u6587\u5927\u5b78\u6b63\u7c4c\u5efa\u5168\u7403\u9996\u500b\u300c\u7db2\u7d61\u7de8\u78bc\u7814\u7a76\u4e2d\u5fc3\u300d\uff0c\u65e8\u5728\u7dad\u6301\u4e26\u6df1\u5316\u4e2d\u5927\u5728\u6b64\u9818\u57df\u7684\u4e3b\u5c0e\u5730\u4f4d\uff0c\u52a0\u5f37\u7406\u8ad6\u7814\u7a76\u53ca\u63a8\u5ee3\u5de5\u696d\u61c9\u7528\uff0c\u9032\u4e00\u6b65\u63d0\u5347\u9999\u6e2f\u5728\u4fe1\u606f\u79d1\u7814\u9818\u57df\u7684\u570b\u969b\u5730\u4f4d\u3002\u4e2d\u5fc3\u5df2\u7372\u5f97\u5927\u5b78\u6559\u80b2\u8cc7\u52a9\u59d4\u54e1\u6703\u3001\u9999\u6e2f\u4e2d\u6587\u5927\u5b78\u3001\u5fae\u8edf\u7814\u7a76\u9662\u53ca\u5fae\u8edf\u4e9e\u6d32\u7814\u7a76\u9662\u8d85\u904e\u56db\u767e\u842c\u7814\u7a76\u8cc7\u52a9\uff0c\u4e26\u5c07\u65bc\u660e\u5e74\u4e00\u6708\u65bc\u9999\u6e2f\u8209\u8fa6\u7db2\u7d61\u7de8\u78bc\u5b78\u8853\u5e74\u6703(NetCod 2008)\u3002<\/p>","show_as_achievement":false,"achievement_category":[],"show_as_clarification":false,"show_as_announcement":false,"photos":null,"attachments":null,"video_source":null,"video_file":null,"add_play_button":false,"video_caption":"","show_migration":false,"original_id":"752","photos_original":[{"photo":"4c4ff0dd48e1c.jpg","caption":""},{"photo":"4c4ff0e84923d.jpg","caption":""},{"photo":"4c4ff0f2866a5.jpg","caption":""},{"photo":"4c4ff0fe99c5a.jpg","caption":""},{"photo":"051110_1.jpg","caption":"\u5de6\u8d77\uff1a\u694a\u5049\u8c6a\u6559\u6388\u3001\u674e\u78a9\u5f65\u6559\u6388\u548c\u8521\u5be7\u535a\u58eb"}],"attachments_original":null},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/press\/47798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/press"}],"about":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/types\/press"}],"version-history":[{"count":0,"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/press\/47798\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/media?parent=47798"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cpr.cuhk.edu.hk\/tc\/wp-json\/wp\/v2\/tags?post=47798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}