文档介绍：municationtechnology,.InthetraditionalC1lent/,a]workwerenotusedefficiently,,,:(1)FortheexistenceofalargenumberofroutingredundancyinChordalgorithm,ThroughselectingR(n)atthefingertableofnocoveringanotherhalfoftheregionandaddedthemtOthetailoftheoriginalroutingtabletoremovetheredundancy,Inordertoreducethenumberofrepeatinginquiryingresource,itaddedtoarecordforeachnodetorecordsearchingresourceinaperiodoftime.(2),theywereiinkedbythesuper—nodebetweenthedivisions.(3)Eachnodemaintainedtwopointersofdifferentdirectionatthesametime,:P2P,Chord,workdelay,nearbyinquiry兰州大学硕士毕业论文P2P网络资源搜索策略研究及方案改进图表目录图2-1P2P网络在协议栈中的位置???...??...??????????????????...????????????????????9图2-3中心式P2P网络???????????????????????????????????lO图2-4Napster网络拓扑结构及查询机制???????????????????????????...???????????????????.11图2-6无结构化P2P网络...??????...??????????????????。???????????????????.12图2-8DHT基本结构示意图???????????????????????????????????????????????。????????????????????????????.19图3-3漫步查询过程(k_3)?????????????????????????。20图3-4基于超级结点的搜索模型???????????????????????..???????????????????????????????????????????????????????????????????????.???????????????????????????????????????????????.???????????????????????