{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T02:41:38Z","timestamp":1747190498938,"version":"3.40.5"},"reference-count":13,"publisher":"Wiley","license":[{"start":{"date-parts":[[2021,9,18]],"date-time":"2021-09-18T00:00:00Z","timestamp":1631923200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Security and Communication Networks"],"published-print":{"date-parts":[[2021,9,18]]},"abstract":"In this paper, we study a novel transmission framework based on statistical channel state information (SCSI) by incorporating edge caching and beamforming in a fog radio access network (F-RAN) architecture. By optimizing the statistical beamforming and edge caching, we formulate a comprehensive nonconvex optimization problem to minimize the backhaul cost subject to the BS transmission power, limited caching capacity, and quality-of-service (QoS) constraints. By approximating the problem using the \n \n \n \n l<\/a:mi>\n <\/a:mrow>\n \n 0<\/a:mn>\n <\/a:mrow>\n <\/a:msub>\n <\/a:math>\n <\/jats:inline-formula>-norm, Taylor series expansion, and other processing techniques, we provide a tailored second-order cone programming (SOCP) algorithm for the unicast transmission scenario and a successive linear approximation (SLA) algorithm for the joint unicast and multicast transmission scenario. This is the first attempt at the joint design of statistical beamforming and edge caching based on SCSI under the F-RAN architecture.<\/jats:p>","DOI":"10.1155\/2021\/1935453","type":"journal-article","created":{"date-parts":[[2021,9,18]],"date-time":"2021-09-18T19:05:06Z","timestamp":1631991906000},"page":"1-8","source":"Crossref","is-referenced-by-count":0,"title":["Joint Design of Beamforming and Edge Caching in Fog Radio Access Networks"],"prefix":"10.1155","volume":"2021","author":[{"given":"Wenjing","family":"Lv","sequence":"first","affiliation":[{"name":"College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2974-0972","authenticated-orcid":true,"given":"Rui","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China"},{"name":"Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 201804, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7090-8653","authenticated-orcid":true,"given":"Jun","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Computer Science, Fudan University, Shanghai, China"},{"name":"Peng Cheng Laboratory, Shenzhen, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhijun","family":"Fang","sequence":"additional","affiliation":[{"name":"College of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4278-589X","authenticated-orcid":true,"given":"Songlin","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Arts and Sciences, Shanghai Dianji University, Shanghai 201306, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/TETCI.2020.3023155"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/access.2019.2917291"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/tit.2017.2735962"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/TGCN.2021.3067374"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1109\/mnet.2016.7513863"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1109\/access.2016.2603996"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1145\/3419842"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/tsp.2006.872578"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2012.100112.120082"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/tsp.2017.2699640"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2016.2578922"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2018.2858223"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1109\/TCSS.2021.3102591"}],"container-title":["Security and Communication Networks"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/1935453.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/1935453.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/scn\/2021\/1935453.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,9,18]],"date-time":"2021-09-18T19:05:12Z","timestamp":1631991912000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/scn\/2021\/1935453\/"}},"subtitle":[],"editor":[{"given":"Honghao","family":"Gao","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2021,9,18]]},"references-count":13,"alternative-id":["1935453","1935453"],"URL":"https:\/\/doi.org\/10.1155\/2021\/1935453","relation":{},"ISSN":["1939-0122","1939-0114"],"issn-type":[{"type":"electronic","value":"1939-0122"},{"type":"print","value":"1939-0114"}],"subject":[],"published":{"date-parts":[[2021,9,18]]}}}