{"created":"2021-03-01T06:44:07.398066+00:00","id":8672,"links":{},"metadata":{"_buckets":{"deposit":"e2c8239c-e6c8-4a68-810e-d1c3bfe4375e"},"_deposit":{"id":"8672","owners":[],"pid":{"revision_id":0,"type":"depid","value":"8672"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00008672","sets":["3:233:244"]},"author_link":["35606"],"item_12_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003","bibliographicIssueDateType":"Issued"}}]},"item_12_date_granted_46":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2003-03-25"}]},"item_12_degree_grantor_44":{"attribute_name":"学位授与大学","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_language":"ja","subitem_degreegrantor_name":"筑波大学"},{"subitem_degreegrantor_language":"en","subitem_degreegrantor_name":"University of Tsukuba"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"12102","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_12_degree_name_43":{"attribute_name":"取得学位","attribute_value_mlt":[{"subitem_degreename":"博士（工学） "},{"subitem_degreename":"Doctor of Philosophy in Engineering"}]},"item_12_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This thesis mainly discusses the micro mobility problem in Mobile IP, QoS for mobile Internet environments and TCP in wireless environments. To overcome micro-mobility problem for Mobile IP, a seamless handoff method is proposed. The proposed method has simple mobility prediction control for the mobile node and the registration procedures are previously executed until the mobile node completely changes the connection point to the\nInternet. The seamless handoff method achieves complete elimination of the communication\ndisruption with changing the connection point. The mobility prediction control is also extended to secure and high quality communications. These methods are also realized by the previous authentication or resource reservation for the next connectable base station. An adaptive handoff algorithm is also proposed for improving network resource utilization. The control is realized by improving typical “threshold-hysteresis algorithm.”Finally, a queue management method is proposed for improving TCP performance in wireless environments.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_12_description_45":{"attribute_name":"学位授与年度","attribute_value_mlt":[{"subitem_description":"2002","subitem_description_type":"Other"}]},"item_12_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Includes bibliographical references","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_12_dissertation_number_47":{"attribute_name":"報告番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第3172号"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ohzahata, Satoshi","creatorNameLang":"en"},{"creatorName":"大坐畠, 智","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"35606","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2013-12-18"}],"displaytype":"detail","filename":"A3172.pdf","filesize":[{"value":"100.9 kB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"abstract","url":"https://tsukuba.repo.nii.ac.jp/record/8672/files/A3172.pdf"},"version_id":"645e5a30-e735-47a1-9ec3-ad40c99d6a90"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2013-12-18"}],"displaytype":"detail","filename":"1.pdf","filesize":[{"value":"517.3 kB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://tsukuba.repo.nii.ac.jp/record/8672/files/1.pdf"},"version_id":"e6ba135e-d5fc-4558-b01c-840c09a94846"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"Proposals of handoff procedures and queue management methods for improving communication efficiency in mobile Internet environments","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Proposals of handoff procedures and queue management methods for improving communication efficiency in mobile Internet environments","subitem_title_language":"en"}]},"item_type_id":"12","owner":"1","path":["244"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2007-07-25"},"publish_date":"2007-07-25","publish_status":"0","recid":"8672","relation_version_is_last":true,"title":["Proposals of handoff procedures and queue management methods for improving communication efficiency in mobile Internet environments"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-01T01:48:03.960542+00:00"}