{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:44:25Z","timestamp":1785775465521,"version":"3.56.0"},"reference-count":7,"publisher":"Optica Publishing Group","issue":"16","license":[{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2023YFB2806100"],"award-info":[{"award-number":["2023YFB2806100"]}]},{"name":"National Natural Science Fund for Excellent Young Scientists Fund Program","award":["3050013532408"],"award-info":[{"award-number":["3050013532408"]}]},{"DOI":"10.13039\/501100012236","name":"Beijing Institute of Technology Research Fund Program for Young Scholars","doi-asserted-by":"crossref","award":["RCPT-6120220051"],"award-info":[{"award-number":["RCPT-6120220051"]}],"id":[{"id":"10.13039\/501100012236","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,8,15]]},"abstract":"<jats:p>Integrated sensing and communication (ISAC) has been widely recognized as a cornerstone of sixth-generation (6G) networks. The prevalence of doubly dispersive channels (DSCs) in high-mobility and high-frequency scenarios has emerged as a critical bottleneck for 6G networks. Affine frequency division multiplexing (AFDM), capable of attaining full diversity gain even in DSC environments, has become a compelling candidate for next-generation ISAC waveforms. In this Letter, we demonstrate a photonics-aided fiber-wireless fronthaul system employing AFDM, which enables absolute range sensing. To our knowledge, this is the first demonstration of integrating AFDM with absolute distance sensing in a fiber-wireless ISAC system. Our experimental results demonstrate the communication and sensing capabilities of the AFDM waveform using 16-ary quadrature amplitude modulation (QAM) symbols with a net data rate of 6.63 Gbit\/s and a ranging resolution of 7.5\u2009cm. Under identical experimental conditions, AFDM achieves a bit-error-rate (BER) performance similar to that of conventional OFDM with a lower overhead. The sensing results demonstrate that AFDM significantly outperforms OFDM in both single-target and multi-target sensing scenarios. AFDM achieves accurate target localization with sharp peaks and low sidelobes, while OFDM suffers from severe false peaks and position deviations due to carrier frequency offset.<\/jats:p>","DOI":"10.1364\/ol.606158","type":"journal-article","created":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T14:00:07Z","timestamp":1784642407000},"page":"4440","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["AFDM-enabled, photonics-aided fiber-wireless fronthaul system for integrated sensing and communication"],"prefix":"10.1364","volume":"51","author":[{"given":"Hengxin","family":"Yan","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1429-5439","authenticated-orcid":true,"given":"Xinying","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liye","family":"Fang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiahao","family":"Bi","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengang","family":"Fu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yujie","family":"Zhang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukai","family":"Fu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xianshuang","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tangyao","family":"Xie","sequence":"additional","affiliation":[{"name":"North China Institute of Aerospace Engineering (NCIAE)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaolong","family":"Pan","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Beijing University of Posts and Telecommunications (BUPT)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"XiangJun","family":"Xin","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01skt4w74","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,8,3]]},"reference":[{"key":"ol-51-16-4440-R1","doi-asserted-by":"publisher","first-page":"1728","DOI":"10.1109\/JSAC.2022.3156632","type":"journal-article","volume":"40","author":"Liu","year":"2022","journal-title":"IEEE J. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}