[1] F Fidler, M Knapek, J Horwath, et al.. Optical communication for high-altitude platforms (invited paper) [J]. IEEE J Sel Top Quantum Electron, 2010, 16(5): 1-13.
[2] S R Kassa, K Barman, D Kosale. A most promising HAPs technology for next generation wireless communication systems [C]. Proceedings of the 4th National Conference, 2010. 1-6.
[3] Wang Xiang, Zhao Shanghong, Li Yongjun, et al.. Design of optical transport network architecture in near space [J]. Optical Communication Technology, 2012, 36(3): 14-16.
[4] M Mohorcic, A Vihar, M Berioli, et al.. Optical transport network based on a meshed HAP system with inter-platform links [C]. ASMS Conference, 2006. 1-7.
[6] Wang Xiang, Zhao Shanghong, Shi Lei, et al.. Performance analysis of inter-platforms laser links in presence of high altitude platform instability [J]. J Optoelectronic·Laser, 2012, 23(11): 2126-2132.
[7] S G Wilson, M Brandt-Pearce, Q Cao, et al.. Free-space optical MIMO transmission with Q-ary PPM [J]. IEEE Trans Commun, 2005, 53(8): 1402-1412.
[8] A Garcia-Zambrana, C Castillo-Vazquez, B Castillo-Vazquez, et al.. Selection transmit diversity for FSO links over strong atmospheric turbulence channels [J]. IEEE Photon Technol Lett, 2009, 21(14): 1017-1019.
[9] A Garcia-Zambrana, C Castillo-Vazquez, B Castillo-Vazquez. Space-time trellis coding with transmit laser selection for FSO links over strong atmospheric turbulence channels [J]. Opt Express, 2010, 18(6): 5256-5366.
[10] A A Farid, S Hranilovic. Diversity gains for MIMO wireless optical intensity channels with turbulence and pointing errors [J]. IEEE Commun Lett, 2010, 14(5): 468-470.
[11] A Garcia-Zambrana, C Castillo-Vazquez, B Castillo-Vazquez. Outage performance of MIMO FSO links over strong turbulence and misalignment fading channels [J]. Opt Express, 2011, 19(14): 13480-13496.
[12] A Sendonaris, E Erkip, B Aazhang. User cooperation diversity part I: system description [J]. IEEE Trans Commun, 2003, 51(11): 1927-1938.
[13] A Sendonaris, E Erkip, B Aazhang. User cooperation diversity part II: implementation aspects and performance analysis [J]. IEEE Trans Commun, 2003, 51(11): 1939-1948.
[14] M Safari, M Uysal. Relay-assited free-space optical communication [J]. IEEE Transactions on Wireless Communications, 2008, 7(12): 5441-5449.
[15] M Karimi, M Nasiri-Kenari. Outage analysis of relay-assited free-space optical communications [J]. IET Communications, 2010, 4(12): 1423-1432.
[16] M Karimi, Masoumeh Nasiri-kenari. Free space optical communications via optical amplify-and-forward relaying [J]. J Lightwave Technol, 2011, 29(2): 242-248.
[17] C Abou-Rjeily, A Slim. Cooperative diversity for free-space optical communications: transceiver design and performance analysis [J]. IEEE Trans Commun, 2011, 59(3): 658-663.
[18] C K Datsikas, K P Peppas, N C Sagias, et al.. Serial free-space optical relaying communications over Gamma-Gamma atmospheric turbulence channels [J]. J Opt Commun New, 2010, 2(8): 576-586.
[19] Wikipedia. Meijer G-function [EB/OL]. [200-10-01]. http://en.wikipedia.org/wiki/Meijer_G-function.
[20] F Yilmaz, M S Alouini. Product of the powers of generalized Nakagami-m variates and performance of cascaded fading channels [C]. IEEE Global Telecommunications Conference, 2009. 1-8.
[21] M O Hasna, M S Alouini. A performance study of dual-hop transmissions with fixed gain relays [J]. IEEE Transaction on Wireless Communication, 2004, 3(6): 1963-1968.
[22] A P Prudnikov, Yu A Brychkov, O I Marichev. Integrals and Series: Direct Laplace Transforms (4th Edition) [M]. New York: Gordon and Breach Science Publishers, 1992.