{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T10:04:43Z","timestamp":1767261883816,"version":"3.37.3"},"reference-count":13,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T00:00:00Z","timestamp":1553644800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003621","name":"Ministry of Science, ICT and Future Planning","doi-asserted-by":"publisher","award":["IITP-2018-0-01426","NRF-2017R1A2B1004474"],"award-info":[{"award-number":["IITP-2018-0-01426","NRF-2017R1A2B1004474"]}],"id":[{"id":"10.13039\/501100003621","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008122","name":"ITRC","doi-asserted-by":"crossref","award":["IITP-2018-0-01426","NRF-2017R1A2B1004474"],"award-info":[{"award-number":["IITP-2018-0-01426","NRF-2017R1A2B1004474"]}],"id":[{"id":"10.13039\/501100008122","id-type":"DOI","asserted-by":"crossref"}]},{"name":"National Research Foundation (NRF) funded by the Korea government","award":["IITP-2018-0-01426","NRF-2017R1A2B1004474"],"award-info":[{"award-number":["IITP-2018-0-01426","NRF-2017R1A2B1004474"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Wireless Communications and Mobile Computing"],"published-print":{"date-parts":[[2019,3,27]]},"abstract":"<jats:p>Cognitive radio (CR) is being considered as a vital technology to provide solution to spectrum scarcity in next generation network, by efficiently utilizing the vacant spectrum of the licensed users. Cooperative spectrum sensing in cognitive radio network has a promising performance compared to the individual sensing. However, the existence of the malicious users\u2019 attack highly degrades the performance of the cognitive radio networks by sending falsified data also known as spectrum sensing data falsification (SSDF) to the fusion center. In this paper, we propose a double adaptive thresholding technique in order to differentiate legitimate users from doubtful and malicious users. Prior to the double adaptive approach, the maximal ratio combining (MRC) scheme is utilized to assign weight to each user such that the legitimate users experience higher weights than the malicious users. Double adaptive threshold is applied to give a fair chance to the doubtful users to ensure their credibility. A doubtful user that fails the double adaptive threshold test is declared as a malicious user. The results of the legitimate users are combined at the fusion center by utilizing Dempster-Shafer (DS) evidence theory. Effectiveness of the proposed scheme is proved through simulations by comparing with the existing schemes.<\/jats:p>","DOI":"10.1155\/2019\/2350694","type":"journal-article","created":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T19:32:17Z","timestamp":1553715137000},"page":"1-9","source":"Crossref","is-referenced-by-count":18,"title":["A Double Adaptive Approach to Tackle Malicious Users in Cognitive Radio Networks"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1119-6999","authenticated-orcid":true,"given":"Muhammad Sajjad","family":"Khan","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, International Islamic University Islamabad, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Muhammad","family":"Jibran","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, International Islamic University Islamabad, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7476-8782","authenticated-orcid":true,"given":"Insoo","family":"Koo","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 680-749, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Su Min","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Korea Polytechnic University, 237 Sangidaehak-ro, Siheung-si, Gyeonggi-do 429-793, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9583-7978","authenticated-orcid":true,"given":"Junsu","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Korea Polytechnic University, 237 Sangidaehak-ro, Siheung-si, Gyeonggi-do 429-793, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","first-page":"4","volume":"2","year":"2015","journal-title":"Journal of Network Communications and Emerging Technologies (JNCET"},{"year":"2003","key":"2"},{"key":"6","first-page":"5","volume":"2","year":"2015","journal-title":"International Research Journal of Engineering and Technology (IRJET)"},{"issue":"5","key":"8","first-page":"120","volume":"8","year":"2017","journal-title":"International Journal of Advanced Networking and Application"},{"key":"9","first-page":"4","volume":"4","year":"2015","journal-title":"EURASIP Journal on Information Security"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.14257\/ijhit.2015.8.9.25"},{"key":"11","first-page":"13","volume":"12","year":"2015","journal-title":"Journal of Communication and Computer"},{"issue":"2","key":"7","first-page":"346","volume":"4","year":"2015","journal-title":"International Journal of Scientific Engineering and Technology Research"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2009.090043"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.3390\/sym8110112"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2015.2499286"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1587\/transcom.E92.B.3644"},{"issue":"2","key":"18","first-page":"295","volume":"12","year":"2016","journal-title":"Journal of Information Processing Systems"}],"container-title":["Wireless Communications and Mobile Computing"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/wcmc\/2019\/2350694.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/wcmc\/2019\/2350694.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/wcmc\/2019\/2350694.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T19:32:23Z","timestamp":1553715143000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/wcmc\/2019\/2350694\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,27]]},"references-count":13,"alternative-id":["2350694","2350694"],"URL":"https:\/\/doi.org\/10.1155\/2019\/2350694","relation":{},"ISSN":["1530-8669","1530-8677"],"issn-type":[{"type":"print","value":"1530-8669"},{"type":"electronic","value":"1530-8677"}],"subject":[],"published":{"date-parts":[[2019,3,27]]}}}