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However, severe interbeam interference may be caused by the dense distribution and wide coverage of multilayer satellite systems. Furthermore, the uneven distribution of traffic demand generated by users may lead to load imbalance among satellites, by which service fairness may be degraded. In this paper, beam management and precoding design are investigated in GEO\u2010LEO coexistence networks to mitigate interbeam interference and improve service fairness in multi\u2010layer satellite systems. To solve the load imbalance problem, a serving satellite allocation algorithm based on game matching theory is proposed. Moreover, a heuristic\u2010based joint beam management and precoding algorithm is proposed to mitigate interference and enhance service fairness. Simulation results show the effectiveness of the proposed algorithms.<\/jats:p>","DOI":"10.1002\/sat.70000","type":"journal-article","created":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T10:58:40Z","timestamp":1749725920000},"page":"487-499","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Beam Management for Interference Mitigation in GEO\u2010LEO Satellite Networks With Precoding"],"prefix":"10.1002","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-7935-9602","authenticated-orcid":false,"given":"Xing","family":"Xin","sequence":"first","affiliation":[{"name":"School of Electronic Engineering Beijing University of Posts and Telecommunications  Beijing China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9814-2768","authenticated-orcid":false,"given":"Gaofeng","family":"Cui","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering Beijing University of Posts and Telecommunications  Beijing China"},{"name":"Key Laboratory of Universal Wireless Communications Ministry of Education  Beijing China"}]},{"given":"Weidong","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering Beijing University of Posts and Telecommunications  Beijing China"},{"name":"Key Laboratory of Universal Wireless Communications Ministry of Education  Beijing China"}]}],"member":"311","published-online":{"date-parts":[[2025,6,10]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2022.3197695"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2024.3375813"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/JIOT.2024.3379586"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2024.3508741"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2023.3294873"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2024.3449430"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2024.3463548"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/TAES.2023.3245044"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2022.3226190"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2022.3213418"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1109\/TBC.2023.3294838"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2023.3300323"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2024.3393924"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2021.3102704"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.23919\/JCC.2022.07.003"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2023.3292554"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2021.3052225"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1109\/TBC.2022.3196173"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1109\/JIOT.2023.3239999"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2022.3199477"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2023.3269442"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2022.3170435"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.23919\/JCC.2021.09.005"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2024.3463002"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2024.3367726"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2023.3346463"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1109\/OJVT.2023.3302511"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3015487"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2024.3460068"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2024.3440487"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2024.3397799"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2023.3263116"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2024.3453557"},{"key":"e_1_2_8_35_1","unstructured":"3GPP.Study on Solutions for NR to Support Non\u2010Terrestrial Networks (Release 16). 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