[1] HAMZA A S, DEOGUN J S, ALEXANDER D R. Classification framework for free space optical communication links and systems[J]. IEEE Communications Surveys & Tutorials, 21, 1346-1382(2018).

[2] KHALIGHI M A, UYSAL M. Survey on free space optical communication: A communication theory perspective[J]. IEEE communications surveys & tutorials, 16, 2231-2258(2014).

[3] KHALID H, MUHAMMAD S S, NISTAZAKIS H E et al. Performance analysis of hard-switching based hybrid FSO/RF system over turbulence channels[J]. Computation, 7, 28-38(2019).

[4] HE B, SCHOBER R. Bit-interleaved coded modulation for hybrid RF/FSO systems[J]. IEEE Transactions on Communications, 57, 3753-3763(2009).

[5] NADEEM F, KVICERA V, AWAN M S et al. Weather effects on hybrid FSO/RF communication link[J]. IEEE Journal on Selected Areas in Communications, 27, 1687-1697(2009).

[6] ABDULHUSSEIN A, OKA A, NGUYEN T T et al. Rateless coding for hybrid free-space optical and radio-frequency communication[J]. IEEE Transactions on Wireless Communications, 9, 907-913(2010).

[7] LEE E, PARK J, HAN D et al. Performance analysis of the asymmetric dual-hop relay transmission with mixed RF/FSO links[J]. IEEE Photonics Technology Letters, 23, 1642-1644(2011).

[8] ANSARI I S, YILMAZ F, ALOUINI M S. Impact of pointing errors on the performance of mixed RF/FSO dual-hop transmission systems[J]. IEEE Wireless Communications Letters, 2, 351-354(2013).

[9] USMAN M, YANG H C, ALOUINI M S. Practical switching-based hybrid FSO/RF transmission and its performance analysis[J]. IEEE Photonics Journal, 6, 1-13(2014).

[10] TOUATI A, ABDAOUI A, TOUATI F et al. On the effects of combined atmospheric fading and misalignment on the hybrid FSO/RF transmission[J]. Journal of Optical Communications and Networking, 8, 715-725(2016).

[11] YANG L, HASNA M O, ANSARI I S. Unified performance analysis for multiuser mixed η-μ and M-distribution dual-hop RF/FSO systems[J]. IEEE Transactions on Communications, 65, 3601-3613(2017).

[12] AMIRABADI M A, VAKILI V T. A novel hybrid FSO/RF communication system with receive diversity[J]. Optik, 184, 293-298(2019).

[13] ESMAIL M A, RAGHEB A M, FATHALLAH H A et al. 5G-28 GHz signal transmission over hybrid all-optical FSO/RF link in dusty weather conditions[J]. IEEE Access, 7, 24404-24410(2019).

[14] ASHRAFZADEH B, SOLEIMANI N E, ZAIMBASHI A et al. Outage performance of mixed RF-FSO systems over DGG and Nakagami-m channels[J]. IEEE Wireless Communications Letters, 9, 2135-2139(2020).

[15] KHAN M N, KASHIF H, RAFAY A. Performance and optimization of hybrid FSO/RF communication system in varying weather[J]. Photonic Network Communications, 41, 47-56(2021).

[16] VISHWAKARMA N, SWAMINATHAN R. On the capacity performance of hybrid FSO/RF system with adaptive combining over generalized distributions[J]. IEEE Photonics Journal, 14, 1-12(2022).

[17] MAGIDI S, JABEENA A. Analysis of hybrid FSO/RF communication system under the effects of combined atmospheric fading and pointing errors[J]. Optical and Quantum Electronics, 54, 1-20(2022).

[18] SHU Fang, AO Faliang, LIAO Xinding. Research on automatic switching conditions of hybrid FSO/RF system[J]. Journal Of Guilin University Of Electronic Technology, 94, 1-4(2008).

[19] MENG Wen. Wireless laser/microwave dual-link communication control technology research[D](2009).

[20] SU Jia, CHEN Hui. Research on hybrid FSO/RF system switching technology based on network packet loss rate[J]. Optical Communication Technique, 35, 28-31(2011).

[21] YANG L, HASNA M O, GAO X. Performance of mixed RF/FSO with variable gain over generalized atmospheric turbulence channels[J]. IEEE Journal on Selected Areas in Communications, 33, 1913-1924(2015).

[22] CHEN L, WANG W, ZHANG C. Multiuser diversity over parallel and hybrid FSO/RF links and its performance analysis[J]. IEEE Photonics Journal, 8, 1-9(2016).

[23] ZHAO Jing, ZHAO Shanghong, ZHAO Weihu et al. Performance analysis of hybrid RF/FSO aerial communication systems under atmospheric turbulence and pointing errors[J]. Chinese Journal of Lasers, 44, 176-184(2017).

[24] ZHAO J, ZHAO S H, ZHAO W H et al. Performance of mixed RF/FSO systems in exponentiated Weibull distributed channels[J]. Optics Communications, 405, 244-252(2017).

[25] SHAO Junhu, SU Runmin, YAO Liu et al. Performance analysis of soft-switching FSO/RF link hybrid coding and modulation algorithm[J]. Journal of Electronic Measurement and Instrument, 31, 682-687(2017).

[26] YI X, SHEN C, YUE P et al. Performance of decode-and-forward mixed RF/FSO system over κ−μ shadowed and exponentiated Weibull fading[J]. Optics Communications, 439, 103-111(2019).

[27] LIU Hongzhan, JIANG Ting, HAO Yuan. Research on improving deep space communication using hybrid RF-FSO system[J]. Journal of Communication, 41, 148-155(2020).

[28] LIU Wenya, ZHAO Shanghong, WANG Xiang et al. Performance analysis of hybrid FSO/RF aerial communication system based on SC diversity[J]. Laser and Infrared, 50, 525-531(2020).

[29] WU Yan, MEI Haiping, DAI Congming et al. Performance analysis of hybrid free space optical/RF communication system[J]. Advances in Lasers and Optoelectronics, 58, 203-209(2021).

[30] LIU Wei, WANG Jingyi, MA Xinyang et al. Hybrid millimeter-wave radio frequency/ multiple input multiple output free space optical communication relay system[J]. Optics and Precision Engineering, 30, 536-544(2022).

[31] DING Liang, WU Zhiyong, GU Yucong et al. Key technologies for wireless laser and RF complementary communication systems[J]. Advances in Lasers and Optoelectronics, 56, 49-64(2019).

[32] WU Y, YANG Q, PARK D et al. Dynamic link selection and power allocation with reliability guarantees for hybrid FSO/RF systems[J]. IEEE Access, 5, 13654-13664(2017).

[33] MAI V V, PHAM A T. Adaptive multi-rate designs for hybrid FSO/RF systems over fading channels[C], 469-474(2014).

[34] NADEEM F, GEIGER B, LEITGEB E et al. Comparison of link selection algorithms for free space optics/radio frequency hybrid network[J]. IET Communications, 5, 2751-2759(2011).

[35] VISHWAKARMA N, SWAMINATHAN R. Performance analysis of hybrid FSO/RF communication over generalized fading models[J]. Optics Communications, 487, 126796-126813(2021).

[36] ZHANG W, HRANILOVIC S, SHI C. Soft-switching hybrid FSO/RF links using short-length raptor codes: design and implementation[J]. IEEE Journal on Selected Areas in Communications, 27, 1698-1708(2009).

[37] ESLAMI A, VANGALA S, PISHRO-NIK H. Hybrid channel codes for efficient FSO/RF communication systems[J]. IEEE Transactions on Communications, 58, 2926-2938(2010).

[38] BAG B, DAS A, ANSARI I S et al. Performance analysis of hybrid FSO systems using FSO/RF-FSO link adaptation[J]. IEEE Photonics Journal, 10, 1-17(2018).

[39] MIRIDAKIS N I, MATTHAIOU M, KARAGIANNIDIS G K. Multiuser relaying over mixed RF/FSO links[J]. IEEE Transactions on Communications, 62, 1634-1645(2014).

[40] WANG Y, WANG P, LIU X et al. On the performance of dual-hop mixed RF/FSO wireless communication system in urban area over aggregated exponentiated Weibull fading channels with pointing errors[J]. Optics Communications, 410, 609-616(2018).

[41] HAN Liqiang, JIANG Hongbing. Performance analysis of a two-hop hybrid RF/MIMO FSO amplify-and-forward relay communication system[J]. Advances in Lasers and Optoelectronics, 57, 1-10(2020).

[42] AO Qingqing. Performance study of multi-user dual-hop hybrid RF/FSO system[D](2021).

[43] JAMALI V, MICHALOPOULOS D S, UYSAL M et al. Link allocation for multiuser systems with hybrid RF/FSO backhaul: Delay-limited and delay-tolerant designs[J]. IEEE Transactions on Wireless Communications, 15, 3281-3295(2016).

[44] NAJAFI M, SCHMAUSS B, SCHOBER R. Intelligent reflecting surfaces for free space optical communication systems[J]. IEEE Transactions on Communications, 69, 6134-6151(2021).

[45] YANG L, GUO W, ANSARI I S. Mixed dual-hop FSO-RF communication systems through reconfigurable intelligent surface[J]. IEEE Communications Letters, 24, 1558-1562(2020).

[46] STOTTS L B, ANDREWS L C, CHERRY P C et al. Hybrid optical RF airborne communications[J]. Proceedings of the IEEE, 97, 1109-1127(2009).

[47] RÖDIGER B, GINTHÖR D, LABRADOR J P et al. Demonstration of an FSO/RF hybrid-communication system on aeronautical and space applications[C], 1-11(2020).

[48] MOHSAN S A H, AMJAD H. A comprehensive survey on hybrid wireless networks: practical considerations, challenges, applications and research directions[J]. Optical and Quantum Electronics, 53, 1-56(2021).

[49] LIANG Jingyuan, KANG Weilong, DONG Zhuang et al. Research progress of optical antenna technology for free-space optical communication system[J]. Optical Communication Technology, 46, 1-10(2022).

[50] KE Xizheng, QIN Huanhuan, YANG Shangjun et al. Nighttime background light noise model for vehicle network visible light communication system[J]. Chinese Journal. of Radio Science, 36, 986-990(2021).

[51] NGUYEN T K, NGUYEN C T, LE H D et al. TCP performance over satellite-based hybrid FSO/RF vehicular networks: Modeling and analysis[J]. IEEE Access, 9, 108426-108440(2021).

[52] ZHOU K, GONG C, WU N et al. Distributed channel allocation and rate control for hybrid FSO/RF vehicular ad hoc networks[J]. Journal of Optical Communications and Networking, 9, 669-681(2017).

[53] CHOWDHURY M Z, HOSSAN M T, HASAN M K et al. Integrated RF/optical wireless networks for improving QoS in indoor and transportation applications[J]. Wireless Personal Communications, 107, 1401-1430(2019).

[54] CHOWDHURY M Z, HASAN M K, SHAHJALAL M et al. Optical wireless hybrid networks: Trends, opportunities, challenges, and research directions[J]. IEEE Communications Surveys & Tutorials, 22, 930-966(2020).

[55] MOHSAN S A H, HASAN M M, MAZINANI A et al. A systematic review on practical considerations, recent advances and research challenges in underwater optical wireless communication[J]. International Journal of Advanced Computer Science and Applications, 11, 1-11(2020).

[56] NAIK R P, CHUNG W Y. Evaluation of reconfigurable intelligent surface-assisted underwater wireless optical communication system[J]. Journal of Lightwave Technology, 40, 4257-4267(2022).

[57] JABER M, IMRAN M A, TAFAZOLLI R et al. 5G backhaul challenges and emerging research directions: A survey[J]. IEEE Access, 4, 1743-1766(2016).

[58] GRACEFFO G M, TALAMONTI J, CAMPBELL L et al. Hybrid RF & FSO for defense and 5G backhaul[C], 1-6(2019).

[59] OGUCHI T. Electromagnetic wave propagation and scattering in rain and other hydrometeors[J]. Proceedings of the IEEE, 71, 1029-1078(1983).

[60] LI Zheng, LIAO Zhiwen, LIANG Jingyuan et al. Research and prospects of atmospheric turbulence model[J]. Optical Communication Technology, 46, 1-13(2022).

[61] KE Xizheng, WU Jiali, YANG Shangjun. Progress and prospects of atmospheric turbulence research for wireless optical communication[J]. Chinese Journal of Radio Science, 36, 323-339(2021).

[62] KE Xizheng, YANG Shangjun, WU Jiali et al. Research progress of adaptive optics for wireless optical communication system at Xi'an University of Technology[J]. Intense Lasers and Particle Beams, 33, 30-52(2021).

[63] KITAMURA K, MASUDA H. First experimental demonstration of all-optical feedforward automatic gain control scheme using a semiconductor optical amplifier[J]. IEICE Electronics Express, 16, 1-6(2019).

[64] SHARMA S, MADHUKUMAR A S, SWAMINATHAN R. Effect of pointing errors on the performance of hybrid FSO/RF networks[J]. IEEE Access, 7, 131418-131434(2019).

[65] MOHSAN S A H, KHAN M A, AMJAD H. Hybrid FSO/RF networks: A review of practical constraints, applications and challenges[J]. Optical Switching and Networking, 47, 100697-100713(2022).

[66] KE Xizheng, DENG Lijun[M]. Optical wireless communication, 105-112(2016).

[67] BAGLEY Z C, HUGHES D H, JUAREZ J C et al. Hybrid optical radio frequency airborne communications[J]. Optical Engineering, 51, 0550061-05500625(2012).

[68] KE Xizheng, LIANG Jingyuan, XU Dongsheng et al. Research progress of pulse position modulation technology for wireless optical communication class[J]. Photovoltaic Engineering, 49, 3-21(2022).

[69] XU G, SONG Z. Effects of solar scintillation on deep space communications: challenges and prediction techniques[J]. IEEE Wireless Communications, 26, 10-16(2019).

[70] BAHA M A M, ALSAIFY A, ALMA'AITAH A Y. Innovative unmanned aerial vehicle self-backhauling hybrid solution using RF/FSO system for 5G networks[J]. International Journal of Electrical & Computer Engineering, 12, 4483-4506(2022).