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Due to the deployment of energy harvesting nodes, traditional secure beamforming designs are not suitable for SWIPT-enabled CR networks as the power control and energy allocation should be considered. To address this problem, a dedicated green edge power grid is built to realize energy sharing between the primary base stations (PBSs) and cognitive base stations (CBSs) in SWIPT-enabled mobile edge computing (MEC) systems with CR. The energy and computing resource optimal allocation problem is formulated under the constraints of security, energy harvesting, power transfer, and tolerable interference. As the problem is nonconvex with probabilistic constraints, approximations based on generalized Bernstein-type inequalities are adopted to transform the problem into solvable forms. Then, a robust and secure artificial noise- (AN-) aided beamforming algorithm is presented to minimize the total transmit power of the CBS. Simulation results demonstrate that the algorithm achieves a close-to-optimal performance. In addition, the robust and secure AN-aided CR based on SWIPT with green energy sharing is shown to require a lower transmit power compared with traditional systems.<\/jats:p>","DOI":"10.1155\/2020\/8899314","type":"journal-article","created":{"date-parts":[[2020,11,4]],"date-time":"2020-11-04T19:35:39Z","timestamp":1604518539000},"page":"1-10","source":"Crossref","is-referenced-by-count":3,"title":["AN-Aided Secure Beamforming in SWIPT-Aware Mobile Edge Computing Systems with Cognitive Radio"],"prefix":"10.1155","volume":"2020","author":[{"given":"Zhe","family":"Wang","sequence":"first","affiliation":[{"name":"School of Computer, Electronics and Information, Guangxi University, Nanning, Guangxi 530004, China"},{"name":"Institute of Artificial Intelligence, Guangxi University for Nationalities, Nanning, Guangxi 530006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Taoshen","family":"Li","sequence":"additional","affiliation":[{"name":"School of Computer, Electronics and Information, Guangxi University, Nanning, Guangxi 530004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8087-6333","authenticated-orcid":true,"given":"Jin","family":"Ye","sequence":"additional","affiliation":[{"name":"Guangxi Key Laboratory of Multimedia Communication & Network Technology, Nanning, Guangxi 530004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3568-8071","authenticated-orcid":true,"given":"Xi","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Information, Beijing Wuzi University, Beijing 101149, China"},{"name":"Beijing Intelligent Logistics System Collaborative Innovation Center, Beijing 101149, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ke","family":"Xiong","sequence":"additional","affiliation":[{"name":"School of Computer and Information Technology, Beijing Jiaotong University, Beijing 100044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1155\/2018\/7291954"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/CC.2016.7405733"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/ISIT.2008.4595260"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2013.031813.120224"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2689011"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2706277"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2017.2698502"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4419-1385-2"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2010.04.090746"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2014.2314654"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2018.2872369"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1109\/TSMC.2019.2895060"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2018.04.018"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1109\/ITW.2014.6970847"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2014.2322076"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2011.2182344"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2019.2904734"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2019.2949994"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2013.2253771"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2010.2094610"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2012.2199145"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2018.2790384"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2665465"},{"article-title":"CVX: Matlab software for disciplined convex programming, version 2.0 beta","year":"2013","author":"M. 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