{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T16:31:44Z","timestamp":1781022704973,"version":"3.54.1"},"reference-count":15,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","issue":"6","license":[{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/ieeexplore.ieee.org\/Xplorehelp\/downloads\/license-information\/IEEE.html"},{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62131005"],"award-info":[{"award-number":["62131005"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62071096"],"award-info":[{"award-number":["62071096"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62001089"],"award-info":[{"award-number":["62001089"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U19B2014"],"award-info":[{"award-number":["U19B2014"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018542","name":"Natural Science Foundation of Sichuan","doi-asserted-by":"publisher","award":["2022NSFSC0495"],"award-info":[{"award-number":["2022NSFSC0495"]}],"id":[{"id":"10.13039\/501100018542","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100012542","name":"Sichuan Science and Technology Program","doi-asserted-by":"publisher","award":["2021YJ0098"],"award-info":[{"award-number":["2021YJ0098"]}],"id":[{"id":"10.13039\/100012542","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Commun. Lett."],"published-print":{"date-parts":[[2023,6]]},"DOI":"10.1109\/lcomm.2023.3265214","type":"journal-article","created":{"date-parts":[[2023,4,10]],"date-time":"2023-04-10T19:14:06Z","timestamp":1681154046000},"page":"1575-1579","source":"Crossref","is-referenced-by-count":24,"title":["UAV Trajectory Optimization for Spectrum Cartography: A PPO Approach"],"prefix":"10.1109","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2587-843X","authenticated-orcid":false,"given":"Li","family":"Li","sequence":"first","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1353-9809","authenticated-orcid":false,"given":"Wei","family":"Li","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4422-1705","authenticated-orcid":false,"given":"Jun","family":"Wang","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8335-778X","authenticated-orcid":false,"given":"Xiaonan","family":"Chen","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2476-9028","authenticated-orcid":false,"given":"Qihang","family":"Peng","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8622-4117","authenticated-orcid":false,"given":"Wei","family":"Huang","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"263","reference":[{"key":"ref13","first-page":"1","article-title":"High-dimensional continuous control using generalized advantage estimation","author":"schulman","year":"2016","journal-title":"Proc Int Conf Learn Represent (ICLR)"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2020.3026111"},{"key":"ref15","first-page":"1","article-title":"Continuous control with deep reinforcement learning","author":"lillicrap","year":"2016","journal-title":"Proc Int Conf Learn Represent (ICLR)"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2022.3145190"},{"key":"ref11","article-title":"Proximal policy optimization algorithms","author":"schulman","year":"2017","journal-title":"arXiv 1707 06347"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1137\/1.9781611970128"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/LSP.2022.3193036"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2013.6685772"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2020.3007804"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2019.2904353"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2019.2927313"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2022.3197087"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2020.2993530"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2019.2940447"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/GLOCOM.2014.7036813"}],"container-title":["IEEE Communications Letters"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/4234\/10147746\/10097711.pdf?arnumber=10097711","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,6,26]],"date-time":"2023-06-26T18:36:54Z","timestamp":1687804614000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/10097711\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,6]]},"references-count":15,"journal-issue":{"issue":"6"},"URL":"https:\/\/doi.org\/10.1109\/lcomm.2023.3265214","relation":{},"ISSN":["1089-7798","1558-2558","2373-7891"],"issn-type":[{"value":"1089-7798","type":"print"},{"value":"1558-2558","type":"electronic"},{"value":"2373-7891","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,6]]}}}