{"created":"2023-06-20T13:20:48.308444+00:00","id":859,"links":{},"metadata":{"_buckets":{"deposit":"6c9b3995-1f9e-4e6e-b550-70331f5e7ecc"},"_deposit":{"created_by":1,"id":"859","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"859"},"status":"published"},"_oai":{"id":"oai:ir.soken.ac.jp:00000859","sets":["2:429:19"]},"author_link":["0","0","0"],"item_1_creator_2":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"杜, 平"}],"nameIdentifiers":[{}]}]},"item_1_creator_3":{"attribute_name":"フリガナ","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"ドゥ, ピング"}],"nameIdentifiers":[{}]}]},"item_1_date_granted_11":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2007-03-23"}]},"item_1_degree_grantor_5":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"総合研究大学院大学"}]}]},"item_1_degree_name_6":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（情報学）"}]},"item_1_description_12":{"attribute_name":"要旨","attribute_value_mlt":[{"subitem_description":"  Optical Burst Switching (OBS) has been proposed as a promising switching <br />technology for the next generation of optical transport network. In this dissertation, <br />we address the issue how to provide QoS control and improve performance in OBS <br />networks . <br />   In order to provide proportional differentiated services without or with absolute <br />constraints in bufferless OBS networks, a Dynamic Wavelength Selection (DWS) <br />scheme is introduced to assign more and longer periods of wavelengths to higher <br />priority classes dynamically and efficiently due to wavelength-sharing. The inte- <br />gration of DWS scheme and another proposed Delayed Burst Assignment (DBA) <br />scheme improves the burst loss performance by giving the burst head packet (BHP) <br />two opportunities of scheduling its data burst (DB). <br />   Furthermore, we propose two novel burst assembly algorithms with traMc shap- <br />ing functions to reduce the variance of assembled traffc and improve the burst <br />loss performance, which are named advanced timer-based and sliding window-based <br />assembly algorithms. <br />   Finally, an edge buffering based OBS layer fast error recovery scheme is pro-- <br />posed to improve the TCP performance over OBS networks, in which lost bursts are <br />retransmitted at edge nodes without being reassembled. <br />   In general, all the proposed schemes solve many of the fundamental issues faced <br />by optical burst switching networks, thereby making OBS more practical and efii- <br />cient in the near future.<br />","subitem_description_type":"Other"}]},"item_1_description_18":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_1_description_7":{"attribute_name":"学位記番号","attribute_value_mlt":[{"subitem_description":"総研大甲第1049号","subitem_description_type":"Other"}]},"item_1_select_14":{"attribute_name":"所蔵","attribute_value_mlt":[{"subitem_select_item":"有"}]},"item_1_select_8":{"attribute_name":"研究科","attribute_value_mlt":[{"subitem_select_item":"複合科学研究科"}]},"item_1_select_9":{"attribute_name":"専攻","attribute_value_mlt":[{"subitem_select_item":"17 情報学専攻"}]},"item_1_text_10":{"attribute_name":"学位授与年度","attribute_value_mlt":[{"subitem_text_value":"2006"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"DU, Ping","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-17"}],"displaytype":"simple","filename":"甲1049_要旨.pdf","filesize":[{"value":"269.5 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"要旨・審査要旨","url":"https://ir.soken.ac.jp/record/859/files/甲1049_要旨.pdf"},"version_id":"467ecd43-923a-4851-90ba-e69ab035581e"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-17"}],"displaytype":"simple","filename":"甲1049_本文.pdf","filesize":[{"value":"31.6 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"本文","url":"https://ir.soken.ac.jp/record/859/files/甲1049_本文.pdf"},"version_id":"fa662610-11b1-4fe9-829a-05cbcd353a82"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"thesis","resourceuri":"http://purl.org/coar/resource_type/c_46ec"}]},"item_title":"QoS Control and Performance Improvement Methods for Optical Burst Switching Networks","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"QoS Control and Performance Improvement Methods for Optical Burst Switching Networks"},{"subitem_title":"QoS Control and Performance Improvement Methods for Optical Burst Switching Networks","subitem_title_language":"en"}]},"item_type_id":"1","owner":"1","path":["19"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-22"},"publish_date":"2010-02-22","publish_status":"0","recid":"859","relation_version_is_last":true,"title":["QoS Control and Performance Improvement Methods for Optical Burst Switching Networks"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T16:10:36.757028+00:00"}