{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T17:56:35Z","timestamp":1772906195934,"version":"3.50.1"},"reference-count":11,"publisher":"Wiley","license":[{"start":{"date-parts":[[2018,12,2]],"date-time":"2018-12-02T00:00:00Z","timestamp":1543708800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003566","name":"Ministry of Oceans and Fisheries","doi-asserted-by":"publisher","award":["NRF-2018R1C1B5045013"],"award-info":[{"award-number":["NRF-2018R1C1B5045013"]}],"id":[{"id":"10.13039\/501100003566","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003621","name":"Ministry of Science, ICT and Future Planning","doi-asserted-by":"publisher","award":["NRF-2018R1C1B5045013"],"award-info":[{"award-number":["NRF-2018R1C1B5045013"]}],"id":[{"id":"10.13039\/501100003621","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002461","name":"Chungbuk National University","doi-asserted-by":"publisher","award":["NRF-2018R1C1B5045013"],"award-info":[{"award-number":["NRF-2018R1C1B5045013"]}],"id":[{"id":"10.13039\/501100002461","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Mobile Information Systems"],"published-print":{"date-parts":[[2018,12,2]]},"abstract":"<jats:p>Two-tier femtocell networks, in which a large number of femto base stations (BSs) are deployed within a region overlapping with a macrocell, can provide an economical means of increasing user capacity and coverage. Given that femto BSs may be deployed with no cell planning, cross-tier interference generated from a number of macrocells and femtocells can cause severe problems. In particular, a macro mobile station (MS) that transmits uplink data may generate severe interference with adjacent femtocells, which causes performance degradation. In order to solve these problems, two novel resource allocation schemes, <jats:italic>optimization<\/jats:italic> and <jats:italic>heuristic<\/jats:italic>, are proposed, which efficiently reduce uplink interference in two-tier femtocell networks. Simulation results at the system level verify that both proposed schemes can improve the average capacity of the femtocells, but the heuristic scheme outperforms the optimization scheme in terms of computational complexity.<\/jats:p>","DOI":"10.1155\/2018\/9093139","type":"journal-article","created":{"date-parts":[[2018,12,2]],"date-time":"2018-12-02T18:34:54Z","timestamp":1543775694000},"page":"1-6","source":"Crossref","is-referenced-by-count":4,"title":["Uplink Resource Allocation for Interference Mitigation in Two-Tier Femtocell Networks"],"prefix":"10.1155","volume":"2018","author":[{"given":"Sung-Yeop","family":"Pyun","sequence":"first","affiliation":[{"name":"Korea Telecom, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9431-7804","authenticated-orcid":true,"given":"Woongsup","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Gyeongsang National University, Tongyeong 53064, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8444-2786","authenticated-orcid":true,"given":"Ohyun","family":"Jo","sequence":"additional","affiliation":[{"name":"Department of Computer Science, College of Electrical and Computer Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/mcom.2008.4623708"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/tvt.2010.2070816"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/jsac.2017.2720898"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2009.070475"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2009.080457"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/tcomm.2017.2763623"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1109\/twc.2016.2628821"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-014-2222-0"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1109\/surv.2012.121112.00037"},{"issue":"9","key":"15","doi-asserted-by":"crossref","first-page":"4408","DOI":"10.1109\/TVT.2013.2263814","volume":"62","year":"2013","journal-title":"IEEE Transactions on Vehicular Technology"},{"key":"16","year":"2011"}],"container-title":["Mobile Information Systems"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/misy\/2018\/9093139.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/misy\/2018\/9093139.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/misy\/2018\/9093139.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,12,2]],"date-time":"2018-12-02T18:34:56Z","timestamp":1543775696000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/misy\/2018\/9093139\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,12,2]]},"references-count":11,"alternative-id":["9093139","9093139"],"URL":"https:\/\/doi.org\/10.1155\/2018\/9093139","relation":{},"ISSN":["1574-017X","1875-905X"],"issn-type":[{"value":"1574-017X","type":"print"},{"value":"1875-905X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,12,2]]}}}