{"_buckets": {"deposit": "3a82d9ed-815a-4655-a768-f0c681b36ba3"}, "_deposit": {"id": "1874", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "1874"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00001874"}, "item_5_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2004-07", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "7", "bibliographicPageEnd": "1746", "bibliographicPageStart": "1742", "bibliographicVolumeNumber": "E87-A", "bibliographic_titles": [{"bibliographic_title": "IEICE transactions on fundamentals of electronics, communications and computer sciences"}, {"bibliographic_title": "IEICE transactions on fundamentals of electronics, communications and computer sciences", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Performance of selective Rake (SRake) receiver is evaluated for direct sequence ultra wideband (DS-UWB) communications considering an independent Rayleigh channel having exponentially decaying power delay profile (PDF). BEP performances are shown. The results obtained are compared with similar results in a channel having flat PDP. Assumption of a flat PDP is found to predict the optimum spreading bandwidth to be lower and sub-optimum operating performance beyond optimum spreading bandwidth to be severely worse than that is achievable in a channel having exponentially decaying PDP by employing an SRake receiver having fixed number of combined paths. Optimum spreading bandwidth for SRake in a channel having exponentially decaying PDP is shown to be much larger than the one in a channel having flat PDP; that is specifically a good-news for UWB communications. Effects of partial band interference are also investigated. Interference is found to be less effective in exponentially decaying PDP.", "subitem_description_type": "Abstract"}]}, "item_5_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "5990", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "\u4f50\u3005\u6728, \u91cd\u4fe1"}]}, {"nameIdentifiers": [{"nameIdentifier": "5991", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "\u6751\u677e, \u6b63\u543e"}]}, {"nameIdentifiers": [{"nameIdentifier": "5992", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "\u83ca\u6c60, \u4e45\u548c"}]}]}, "item_5_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "The Institute of Electronics, Information and Communication Engineers"}]}, "item_5_relation_31": {"attribute_name": "\u7570\u7248\u3067\u3042\u308b", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.ieice.org/jpn/trans_online/", "subitem_relation_type_select": "URI"}}]}, "item_5_rights_15": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "copyright\u00a92004 IEICE\uff08\u8a31\u8afe\u756a\u53f707RB0183\uff09"}]}, "item_5_select_19": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_5_source_id_11": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AA10826239", "subitem_source_identifier_type": "NCID"}]}, "item_5_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "09168508", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Rahman, Mohammad Azizur"}], "nameIdentifiers": [{"nameIdentifier": "5985", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sasaki, Shigenobu"}], "nameIdentifiers": [{"nameIdentifier": "5986", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Zhou, Jie"}], "nameIdentifiers": [{"nameIdentifier": "5987", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Muramatsu, Shogo"}], "nameIdentifiers": [{"nameIdentifier": "5988", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kikuchi, Hisakazu"}], "nameIdentifiers": [{"nameIdentifier": "5989", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-07-29"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "1_0010.pdf", "filesize": [{"value": "521.7 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 521700.00000000006, "url": {"label": "1_0010.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/1874/files/1_0010.pdf"}, "version_id": "7ea86932-1551-45f9-869b-98b731fcbd28"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "ultra wideband", "subitem_subject_scheme": "Other"}, {"subitem_subject": "selective Rake receiver", "subitem_subject_scheme": "Other"}, {"subitem_subject": "spreading bandwidth", "subitem_subject_scheme": "Other"}, {"subitem_subject": "power delay profile", "subitem_subject_scheme": "Other"}, {"subitem_subject": "partial band interference", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Evaluation of selective Rake receiver in direct sequence ultra wideband communications", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Evaluation of selective Rake receiver in direct sequence ultra wideband communications"}, {"subitem_title": "Evaluation of selective Rake receiver in direct sequence ultra wideband communications", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["453/454", "423/424/425"], "permalink_uri": "http://hdl.handle.net/10191/6204", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2008-04-08"}, "publish_date": "2008-04-08", "publish_status": "0", "recid": "1874", "relation": {}, "relation_version_is_last": true, "title": ["Evaluation of selective Rake receiver in direct sequence ultra wideband communications"], "weko_shared_id": null}