{"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\/sc\/press\/cuhk-embarks-on-the-next-information-revolution-network-coding-theory\/","title":{"rendered":"\u6e90\u81ea\u4e2d\u5927\u7684\u7f51\u7edc\u9769\u547d &#8211; \u7f51\u7edc\u7f16\u7801\u7406\u8bba"},"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\u53f7\u300a\u79d1\u5b66\u7f8e\u56fd\u4eba\u300b(<em>Scientific American<\/em>) 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theory)\u3002\u300a\u79d1\u5b66\u7f8e\u56fd\u4eba\u300b\u59cb\u4e8e1845\u5e74\uff0c\u662f\u7f8e\u56fd\u5386\u53f2\u6700\u60a0\u4e45\u7684\u6743\u5a01\u79d1\u666e\u671f\u520a\u3002<\/p><p>\t\u8981\u7406\u89e3\u88ab\u300a\u79d1\u5b66\u7f8e\u56fd\u4eba\u300b\u55bb\u4e3a\u5c06\u4f1a\u6fc0\u8d77\u4e0b\u4e00\u4e2a\u7f51\u7edc\u9769\u547d\u7684\u7f51\u7edc\u7f16\u7801\u7406\u8bba\uff0c\u5fc5\u987b\u660e\u767d\u7f51\u7edc\u7684\u539f\u7406\u3002\u76f8\u4fe1\u5927\u90e8\u5206\u9999\u6e2f\u4eba\u6df1\u660e\u585e\u8f66\u585e\u4eba\u4e4b\u82e6\uff0c\u5176\u5b9e\u4e92\u8054\u7f51\u4ea6\u4f1a\u56e0\u7f51\u7edc\u7e41\u5fd9\u800c\u5927\u585e\u8f66\u3002\u4e92\u8054\u7f51\u5b9b\u5982\u5de8\u578b\u4ea4\u901a\u7f51\uff0c\u7531\u65e0\u6570\u8def\u7531\u5668(routers) \u63a5\u901a\uff0c\u8def\u7531\u5668\u7684\u89d2\u8272\u597d\u6bd4\u4ea4\u901a\u8b66\uff0c\u8baf\u606f\u5728\u7f51\u4e0a\u4f20\u9001\u6709\u8d56\u6570\u636e\u5305(packets) \u4e3a\u8f7d\u4f53(carriers)\uff0c\u5305\u5185\u4e58\u8f7d\u540c\u4e00\u8baf\u606f\u7684\u4f4d\u5143(bits)\uff0c\u5b83\u5c31\u5982\u4e00\u8f86\u8f66\uff0c\u4f9d\u9760\u8def\u7531\u5668\u7684\u6307\u5f15\u5230\u8fbe\u76ee\u7684\u5730\u3002<\/p><p>\t\u4e00\u76f4\u4ee5\u6765\uff0c\u65e0\u6570\u7684\u79d1\u5b66\u5bb6\u82b1\u5c3d\u5fc3\u601d\u53bb\u7814\u7a76\u5982\u4f55\u589e\u52a0\u7f51\u7edc\u7684\u6548\u80fd\u3002\u4e3a\u4e86\u51cf\u5c11\u8baf\u606f\u80fd\u91cf\u7684\u6d41\u5931\uff0c\u524d\u4e2d\u5927\u6821\u957f\u3001\u5149\u7ea4\u4e4b\u7236\u9ad8\u951f\u53d1\u660e\u4e86\u5149\u7ea4\uff0c\u53d6\u4ee3\u94dc\u5236\u7ebf\u8def\uff0c\u6fc0\u8d77\u4e00\u573a\u901a\u8baf\u4e8b\u4e1a\u7684\u9769\u547d\uff0c\u6253\u5f00\u4e86\u5149\u5bfc\u65b0\u4e16\u754c\u7684\u5927\u95e8\u3002\u5728\u63d0\u9ad8\u7f51\u7edc\u6548\u7387\u4e0a\uff0c\u79d1\u5b66\u5bb6\u4e0d\u65ad\u7814\u7a76\u66f4\u6709\u6548\u7684\u4ea4\u6362\u7406\u8bba(Switching Theory) \u4f9b\u8def\u7531\u5668\u4f7f\u7528\u3002\u8fd9\u4e9b\u7814\u7a76\u5927\u90e8\u5206\u90fd\u662f\u73b0\u6709\u7cfb\u7edf\u7684\u4f38\u5ef6\uff0c\u8c01\u4e5f\u6ca1\u6709\u60f3\u8fc7\u8def\u7531\u5668\u662f\u5426\u771f\u7684\u80fd\u591f\u63d0\u4f9b\u6700\u4f73\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u9664\u4e86\u8def\u7531\u5668\u4e4b\u5916\u8fd8\u6709\u5176\u4ed6\u9009\u62e9\u5417\uff1f<\/p><p>\t\u76f4\u81f3\u4e03\u5e74\u524d\uff0c\u4e0a\u8ff0\u51e0\u4f4d\u4e2d\u5927\u6559\u6388\u63d0\u51fa\u4e86\u7a81\u7834\u6027\u7f51\u7edc\u7f16\u7801\u7406\u8bba\uff0c\u4ece\u6b64\u65b0\u4e00\u4e2a\u7f51\u7edc\u9769\u547d\u4fbf\u5f00\u59cb\u4e86\u3002\u7406\u8bba\u63d0\u51fa\u4ee5\u7f16\u7801\u5668\u53d6\u4ee3\u8def\u7531\u5668\uff0c\u53d1\u9001\u6709\u5173\u8baf\u606f\u7684\u8bc1\u636e(evidence about the messages)\uff0c\u800c\u975e\u6574\u4e2a\u8baf\u606f\u7684\u672c\u8eab\u3002\u63a5\u6536\u5668(receiver) \u6536\u5230\u8bc1\u636e\u4fbf\u8fdb\u884c\u91cd\u7ec4\u8fd8\u5143\u8baf\u606f\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5c5e\u4e8e\u540c\u4e00\u8baf\u606f\u7684\u4f4d\u5143\u65e0\u987b\u518d\u50cf\u73b0\u65f6\u822c\u5904\u4e8e\u540c\u4e00\u6570\u636e\u5305\uff0c\u7f51\u7edc\u7f16\u7801\u7406\u8bba\u4f1a\u81ea\u52a8\u628a\u4e0d\u540c\u7684\u8baf\u606f\u8fdb\u884c\u7f16\u7801\u3001\u5f53\u5230\u8fbe\u76ee\u7684\u5730\u65f6\u518d\u91cd\u65b0\u7ec4\u5408\uff0c\u8fd9\u6837\u4fbf\u5927\u5927\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u5bb9\u91cf\u548c\u6548\u7387\u3002<\/p><p>\t\u968f\u540e\u674e\u6559\u6388\u3001\u6768\u6559\u6388\u548c\u8521\u535a\u58eb\u51ed\u7740\u4ed6\u4eec\u7684\u7b2c\u4e8c\u4efd\u76f8\u5173\u8bba\u6587\u300c\u7ebf\u6027\u7f51\u7edc\u7f16\u7801\u300d(Linear Network Coding) \u83b7\u9881\u4e8c\u96f6\u96f6\u4e94\u5e74\u5ea6IEEE\u7535\u673a\u53ca\u7535\u5b50\u5de5\u7a0b\u5e08\u5b66\u4f1a\u4fe1\u606f\u7406\u8bba\u5b66\u4f1a\u8bba\u6587\u5956\u3002\u8fd9\u662f\u9996\u6b21\u6709\u672c\u6e2f\u5b66\u8005\u83b7\u5f97\u8fd9\u8bba\u6587\u5956\uff0c\u4ea6\u662f\u4e09\u5341\u591a\u5e74\u6765\u9996\u6b21\u7531\u4e9a\u6d32\u7814\u7a76\u4eba\u5458\u83b7\u5956\u3002<\/p><p>\t\u7f51\u7edc\u7f16\u7801\u5e26\u7ed9\u7f51\u7edc\u5e94\u7528\u4e00\u573a\u8303\u5f0f\u9769\u547d\u3002\u5fae\u8f6f\u516c\u53f8\u4ea6\u4ee5\u7f51\u7edc\u7f16\u7801\u4f5c\u4e3a\u6838\u5fc3\u6280\u672f\u5f00\u53d1\u51fa\u540d\u4e3a\u300c\u96ea\u5d29\u300d(Avalanche) \u7684P2P\u539f\u578b\u8f6f\u4ef6\u3002\u7531\u4e8eP2P\u901a\u8baf\u5360\u4e92\u8054\u7f51\u9891\u5bbd60%\u4ee5\u4e0a\uff0c\u7f51\u7edc\u7f16\u7801\u5c06\u4f1a\u4ea7\u751f\u6df1\u8fdc\u7684\u5f71\u54cd\u3002\u9884\u6599\u672a\u6765\u5341\u5e74\uff0c\u4ece\u7535\u8111\u901a\u8baf\u3001\u65e0\u7ebf\u7535\u901a\u8baf\u3001\u4ee5\u81f3\u4e8e\u5176\u4ed6\u5404\u7c7b\u901a\u8baf\uff0c\u90fd\u4f1a\u5e7f\u6cdb\u5730\u5e94\u7528\u7f51\u7edc\u7f16\u7801\u3002<\/p><p>\t\u9999\u6e2f\u4e2d\u6587\u5927\u5b66\u6b63\u7b79\u5efa\u5168\u7403\u9996\u4e2a\u300c\u7f51\u7edc\u7f16\u7801\u7814\u7a76\u4e2d\u5fc3\u300d\uff0c\u65e8\u5728\u7ef4\u6301\u5e76\u6df1\u5316\u4e2d\u5927\u5728\u6b64\u9886\u57df\u7684\u4e3b\u5bfc\u5730\u4f4d\uff0c\u52a0\u5f3a\u7406\u8bba\u7814\u7a76\u53ca\u63a8\u5e7f\u5de5\u4e1a\u5e94\u7528\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u9999\u6e2f\u5728\u4fe1\u606f\u79d1\u7814\u9886\u57df\u7684\u56fd\u9645\u5730\u4f4d\u3002\u4e2d\u5fc3\u5df2\u83b7\u5f97\u5927\u5b66\u6559\u80b2\u8d44\u52a9\u59d4\u5458\u4f1a\u3001\u9999\u6e2f\u4e2d\u6587\u5927\u5b66\u3001\u5fae\u8f6f\u7814\u7a76\u9662\u53ca\u5fae\u8f6f\u4e9a\u6d32\u7814\u7a76\u9662\u8d85\u8fc7\u56db\u767e\u4e07\u7814\u7a76\u8d44\u52a9\uff0c\u5e76\u5c06\u4e8e\u660e\u5e74\u4e00\u6708\u4e8e\u9999\u6e2f\u4e3e\u529e\u7f51\u7edc\u7f16\u7801\u5b66\u672f\u5e74\u4f1a(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\u6768\u4f1f\u8c6a\u6559\u6388\u3001\u674e\u7855\u5f66\u6559\u6388\u548c\u8521\u5b81\u535a\u58eb"}],"attachments_original":null},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/press\/47798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/press"}],"about":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/types\/press"}],"version-history":[{"count":0,"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/press\/47798\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/media?parent=47798"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cpr.cuhk.edu.hk\/sc\/wp-json\/wp\/v2\/tags?post=47798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}