{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T03:03:18Z","timestamp":1763348598749,"version":"3.28.0"},"reference-count":19,"publisher":"Institute of Electronics, Information and Communications Engineers (IEICE)","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEICE Trans. Fundamentals"],"published-print":{"date-parts":[[2024,7,1]]},"DOI":"10.1587\/transfun.2023eap1085","type":"journal-article","created":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T22:28:25Z","timestamp":1698272905000},"page":"1011-1018","source":"Crossref","is-referenced-by-count":1,"title":["Joint AP Selection and Grey Wolf Optimization Based Pilot Design for Cell-Free Massive MIMO Systems"],"prefix":"10.1587","volume":"E107.A","author":[{"given":"Zelin","family":"LIU","sequence":"first","affiliation":[{"name":"Hangzhou Dianzi University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fangmin","family":"XU","sequence":"additional","affiliation":[{"name":"Hangzhou Dianzi University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"532","reference":[{"key":"1","doi-asserted-by":"publisher","unstructured":"[1] H.Q. Ngo, A. Ashikhmin, H. Yang, E.G. Larsson, and T.L. Marzetta, \u201cCell-free massive MIMO versus small cells,\u201d IEEE Trans. Wireless Commun., vol.16, no.3, pp.1834-1850, 2017. 10.1109\/twc.2017.2655515","DOI":"10.1109\/TWC.2017.2655515"},{"key":"2","doi-asserted-by":"publisher","unstructured":"[2] S. Buzzi, C. D'Andrea, A. Zappone, and C. D'Elia, \u201cUser-centric 5G cellular networks: Resource allocation and comparison with the cell-free massive MIMO approach,\u201d IEEE Trans. Wireless Commun., vol.19, no.2, pp.1250-1264, 2020. 10.1109\/twc.2019.2952117","DOI":"10.1109\/TWC.2019.2952117"},{"key":"3","doi-asserted-by":"publisher","unstructured":"[3] E. Bjornson and L. Sanguinetti, \u201cMaking cell-free massive MIMO competitive with MMSE processing and centralized implementation,\u201d IEEE Trans. Wireless Commun., vol.19, no.1, pp.77-90, 2020. 10.1109\/twc.2019.2941478","DOI":"10.1109\/TWC.2019.2941478"},{"key":"4","doi-asserted-by":"publisher","unstructured":"[4] H. He, X. Yu, J. Zhang, S. Song, and K.B. Letaief, \u201cCell-free massive MIMO for 6G wireless communication networks,\u201d J. Commun. Inf. Netw., vol.6, no.4, pp.321-335, 2021. 10.23919\/jcin.2021.9663100","DOI":"10.23919\/JCIN.2021.9663100"},{"key":"5","doi-asserted-by":"crossref","unstructured":"[5] S.-H. Park, O. Simeone, Y.C. Eldar, and E. Erkip, \u201cOptimizing pilots and analog processing for channel estimation in cell-free massive MIMO with one-bit ADCs,\u201d IEEE SPAWC 2018, pp.1-5, 2018. 10.1109\/spawc.2018.8445960","DOI":"10.1109\/SPAWC.2018.8445960"},{"key":"6","doi-asserted-by":"publisher","unstructured":"[6] G. Interdonato, E. Bj\u00f6rnson, H. Quoc Ngo, P. Frenger, and E.G. Larsson, \u201cUbiquitous cell-free massive MIMO communications,\u201d EURASIP J. Wireless Commun. Netw., vol.2019, no.1, p.197, 2019. 10.1186\/s13638-019-1507-0","DOI":"10.1186\/s13638-019-1507-0"},{"key":"7","doi-asserted-by":"crossref","unstructured":"[7] M. Attarifar, A. Abbasfar, and A. Lozano, \u201cRandom vs structured pilot assignment in cell-free massive MIMO wireless networks,\u201d Proc. IEEE Int. Conf. Commun., pp.1-6, 2018. 10.1109\/iccw.2018.8403508","DOI":"10.1109\/ICCW.2018.8403508"},{"key":"8","doi-asserted-by":"crossref","unstructured":"[8] Y. Zhang, H. Cao, P. Zhong, C. Qi, and L. Yang, \u201cLocation-based greedy pilot assignment for cell-free massive MIMO systems,\u201d Proc. IEEE Int.Conf. Comput. Creativity, pp.392-396, 2018. 10.1109\/compcomm.2018.8780756","DOI":"10.1109\/CompComm.2018.8780756"},{"key":"9","doi-asserted-by":"publisher","unstructured":"[9] H.Q. Ngo, L.-N. Tran, T.Q. Duong, M. Matthaiou, and E.G. Larsson, \u201cOn the total energy efficiency of cell-free massive MIMO,\u201d IEEE Trans. Green Commun. Netw., vol.2, no.1, pp.25-39, 2018. 10.1109\/TGCN.2017.2770215","DOI":"10.1109\/TGCN.2017.2770215"},{"key":"10","doi-asserted-by":"publisher","unstructured":"[10] E. Bjornson and L. Sanguinetti, \u201cScalable cell-free massive MIMO systems,\u201d IEEE Trans. Commun., vol.68, no.7, pp.4247-4261, 2020. 10.1109\/tcomm.2020.2987311","DOI":"10.1109\/TCOMM.2020.2987311"},{"key":"11","doi-asserted-by":"publisher","unstructured":"[11] H. Liu, J. Zhang, S. Jin, and B. Ai, \u201cGraph coloring based pilot assignment for cell-free massive MIMO systems,\u201d IEEE Trans. Veh. Technol., vol.69, no.8, pp.9180-9184, 2020. 10.1109\/tvt.2020.3000496","DOI":"10.1109\/TVT.2020.3000496"},{"key":"12","doi-asserted-by":"publisher","unstructured":"[12] W. Zeng, Y. He, B. Li, and S. Wang, \u201cPilot assignment for cell-free massive MIMO systems using a weighted graphic framework,\u201d IEEE Trans. Veh. Technol., vol.70, no.6, pp.6190-6194, 2021. 10.1109\/tvt.2021.3076440","DOI":"10.1109\/TVT.2021.3076440"},{"key":"13","doi-asserted-by":"publisher","unstructured":"[13] S. Chen, J. Zhang, E. Bj\u00f6rnson, J. Zhang, and B. Ai, \u201cStructured massive access for scalable cell-free massive MIMO systems,\u201d IEEE J. Sel. Areas Commun., vol.39, no.4, pp.1086-1100, 2021. 10.1109\/jsac.2020.3018836","DOI":"10.1109\/JSAC.2020.3018836"},{"key":"14","doi-asserted-by":"publisher","unstructured":"[14] M. Freitas, D. Souza, D.B. da Costa, G. Borges, A.M. Cavalcante, M. Marquezini, I. Almeida, R. Rodrigues, and J.C. Costa, \u201cMatched-decision AP selection for user-centric cell-free massive MIMO networks,\u201d IEEE Trans. Veh. Technol., vol.72, no.5, pp.6375-6391, 2023. 10.1109\/tvt.2023.3235980","DOI":"10.1109\/TVT.2023.3235980"},{"key":"15","doi-asserted-by":"publisher","unstructured":"[15] E. Bj\u00f6rnson, J. Hoydis, and L. Sanguinetti, \u201cMassive MIMO networks: Spectral, energy, and hardware efficiency,\u201d Found. Trends Signal Process., vol.11, nos.3-4, pp.154-655, 2017. 10.1561\/2000000093","DOI":"10.1561\/2000000093"},{"key":"16","doi-asserted-by":"publisher","unstructured":"[16] S. Mirjalili, S.M. Mirjalili, and A. Lewis, \u201cGrey wolf optimizer,\u201d Adv. Eng. Softw., vol.69, no.3, pp.46-61, 2014. 10.1016\/j.advengsoft.2013.12.007","DOI":"10.1016\/j.advengsoft.2013.12.007"},{"key":"17","doi-asserted-by":"publisher","unstructured":"[17] X. Nie and F. Zhao, \u201cPilot allocation and power optimization of massive MIMO cellular networks with underlaid D2D communications,\u201d IEEE Internet Things J., vol.8, no.20, pp.15317-15333, 2021. 10.1109\/jiot.2021.3061510","DOI":"10.1109\/JIOT.2021.3061510"},{"key":"18","doi-asserted-by":"crossref","unstructured":"[18] A. Tang, J. Sun, and K. Gong, \u201cMobile propagation loss with a low base station antenna for NLOS street microcells in urban area,\u201d Proc. IEEE Veh. Technol. Conf. (VTC), pp.333-336, 2001. 10.1109\/vetecs.2001.944859","DOI":"10.1109\/VETECS.2001.944859"},{"key":"19","doi-asserted-by":"publisher","unstructured":"[19] T.C. Mai, H.Q. Ngo, M. Egan, and T.Q. Duong, \u201cPilot power control for cell-free massive MIMO,\u201d IEEE Trans. Veh. Technol., vol.67, no.11, pp.11264-11268, 2018. 10.1109\/tvt.2018.2867606","DOI":"10.1109\/TVT.2018.2867606"}],"container-title":["IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/transfun\/E107.A\/7\/E107.A_2023EAP1085\/_pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,31]],"date-time":"2024-10-31T20:53:35Z","timestamp":1730408015000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jstage.jst.go.jp\/article\/transfun\/E107.A\/7\/E107.A_2023EAP1085\/_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,7,1]]},"references-count":19,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2024]]}},"URL":"https:\/\/doi.org\/10.1587\/transfun.2023eap1085","relation":{},"ISSN":["0916-8508","1745-1337"],"issn-type":[{"type":"print","value":"0916-8508"},{"type":"electronic","value":"1745-1337"}],"subject":[],"published":{"date-parts":[[2024,7,1]]},"article-number":"2023EAP1085"}}