[1] [1] RANKOV B, WITTNEBEN A. Spectral efficient protocols for half-duplex fading relay channels[J]. IEEE journal on selected areas in communications, 2007, 25:379-389.

[2] [2] AL-ERYANI Y F, SALHAB A M, ZUMMO S A, et al. Two-way multiuser mixed RF/FSO relaying: performance analysis and power allocation[J]. Journal of optical communications and networking, 2018, 10(4): 396-408.

[3] [3] SHARMA N, GARG P, BANSAL A. Mixed RF/FSO bidirectional system achieving spectral efficiency[J]. Photonic network communications, 2017, 34(1): 93-99.

[4] [4] NGUYEN T V, PHAM T V M, PHAM T A, et al. Performance analysis of network-coded two-way dual-hop mixed FSO/RF systems[C]//Proceedings of International Conference on Advanced Technologies for Communications, October 12-14, 2016, Hanoi, Vietnam. New York: IEEE, 2016: 70-75.

[5] [5] GOEL A, BHATIA R. Double relay selection for combating the impact of interference and hardware impairments in mixed RF/FSO two way relay networks[J]. Optical and quantum electronics, 2022, 54(11): 1-15.

[6] [6] PETKOVIC M I, CVETKOVIC A M, DJORDJEVIC G T, et al. Outage performance of the mixed RF/FSO relaying channel in the presence of interference[J]. Wireless personal communications, 2017, 96: 1-16.

[7] [7] BALTI E, GUIZANI M. Mixed RF/FSO cooperative relaying systems with co-channel interference[J]. IEEE transactions on communications, 2018, 66(9):4014-4027.

[8] [8] UPADHYA A, DWIVEDI W, ALOUINI M S. Interference-limited mixed MUD-RF/FSO two-way cooperative networks over double generalized Gamma turbulence channels[J]. IEEE communications letters, 2019, 23(9): 1551-1555.

[9] [9] UPADHYA A, DWIVEDI V K, KARAGIANNIDIS G K. On the effect of interference and misalignment error in mixed RF/FSO systems over generalized fading channels[J]. IEEE transactions on communications,2020, 68(6): 3681-3695.

[10] [10] UPADHYA A. Coded cooperation for combating interference in mixed RF/FSO cooperative relays[J]. Optical and quantum electronics, 2021, 53(10): 1-16.

[11] [11] LABGHOUGH S, AYOUB F. Mixed coded RF/FSO EH-based communication system subject to multiuser interference and residual hardware impairments[J]. IEEE access, 2023, 11: 94822-94839.

[12] [12] DING J, KANG D, XIE X, et al. Joint effects of co-channel interferences and pointing errors on dual-hop mixed RF/FSO fixed-gain and variable-gain relaying systems[J]. IEEE photonics journal, 2023, 15(1): 1-11.

[13] [13] SOLEIMANI-NASAB E, MATTHAIOU M, ARDEBILIPOUR M, et al. Two-way AF relaying in the presence of co-channel interference[J]. IEEE transactions on communications, 2013, 61(8): 3156-3169.

[14] [14] 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, 2016, 8(10):715-725.

[15] [15] GRADSHTEYN I S, RYZHIK I M. Table of integrals, series and product[M]. San Diego: Academic Press,2000.

[16] [16] MILTON A, IRENE A S. Handbook of mathematical functions, with formulas, graphs, and mathematical tables[M]. Washington, 1964.

[17] [17] The Wolfram Functions Site[EB/OL]. (2015)[2023-06-17]. http://functions.wolfram.com/HypergeometricFunctions/MeijerG/.