{"id":3236,"date":"2017-10-19T05:58:35","date_gmt":"2017-10-19T05:58:35","guid":{"rendered":"http:\/\/network.ee.tsinghua.edu.cn\/niulab\/?p=3236"},"modified":"2017-10-19T05:59:56","modified_gmt":"2017-10-19T05:59:56","slug":"mobility-aware-coded-caching-scheme-for-small-cell-network","status":"publish","type":"post","link":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/?p=3236","title":{"rendered":"Mobility-aware coded-caching scheme for small cell network"},"content":{"rendered":"<p><span class=\"paper_subtitle\"><a href=\"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/?attachment_id=3241\" rel=\"attachment wp-att-3241\">\u5218\u62d3ICC<\/a><\/span><\/p>\n<p><span class=\"paper_subtitle\">LANGUAGE\u00a0\u00a0 <\/span>\u00a0English<\/p>\n<p><span class=\"paper_subtitle\">SOURCE<\/span>\u00a0\u00a0<strong><em>IEEE ICC 2017<\/em><\/strong>, Paris, May 21-25, 2017<\/p>\n<p><span class=\"paper_subtitle\">Published <\/span> <span class=\"paper_subtitle\">Date<\/span>:2017<\/p>\n<p><span class=\"paper_subtitle\">ABSTRACT<\/span><\/p>\n<p>To deal with the huge traffic demand in wireless<br \/>\nnetworks, small base stations (SBSs) are introduced in cellular<br \/>\nnetworks, not only with dense deployment, but also with caching<br \/>\ncapabilities. Due to the short distances between users and SBSs,<br \/>\nfiles can be downloaded at higher transmission rate from the<br \/>\ncache of SBSs than being downloaded over backhaul links.<br \/>\nHowever, user mobility makes the file allocation in SBS caches<br \/>\nmore challenging, mostly because the user association to SBSs<br \/>\ndynamically changes. Moreover, the amount of data that users<br \/>\ncan download depends on the sojourn time within the coverage of<br \/>\nSBSs. In this paper, based on the assumption that the user sojourn<br \/>\ntime obeys exponential distribution, we get the upper bound of<br \/>\nthe mean download time of files. A file allocation strategy is then<br \/>\nproposed based on the derived bounds of mean sojourn time.<br \/>\nOptimal file allocation strategies under low and high mobility<br \/>\nare further obtained. Simulations show that the strategy performs<br \/>\nnotably better than the popularity-based allocation strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/wp-content\/uploads\/2017\/10\/\u5218\u62d3ICC.pdf\"target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-117\" title=\"pdf\" src=\"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/wp-content\/uploads\/2010\/08\/pdf.gif\"alt=\"\" width=\"95\" height=\"50\" \/><\/a> Tuo Liu, Sheng Zhou, and Zhisheng Niu  <span class=\"papertitle\">Mobility-aware coded-caching scheme for small cell network\uff0c<\/span><span class=\"papersource\">IEEE ICC 2017, Paris, May 21-25, 2017 <\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[7],"tags":[99],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/posts\/3236"}],"collection":[{"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3236"}],"version-history":[{"count":3,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/posts\/3236\/revisions"}],"predecessor-version":[{"id":3242,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=\/wp\/v2\/posts\/3236\/revisions\/3242"}],"wp:attachment":[{"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/network.ee.tsinghua.edu.cn\/niulab\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}