[1] Q. Zhao, S. Hao, H. Ceng, J. Liu, Y. Wang and H. Sun, Journal of Optoelectronics·Laser 26, 1081 (2015). (in Chinese)
[2] R. Wang, P. Wang, T. Cao, L.Guo and Y. Yang, Optoelectronics Letters 11, 281 (2015).
[3] M. Li, Y. Huang, Y. Cao and S. Yang, Journal of Optoelectronics ·Laser 25, 1310 (2014). (in Chinese)
[4] R. Boluda-Ruiz, A. García-Zambrana, B. Castillo- Vázquez and C. Castillo-Vázquez, Optics Express 23, 2600 (2015).
[5] M. A. Khalighi and M. Uysal, IEEE Communication Surveys & Tutorials 16, 2231 (2014).
[6] Y. Yang, X. Chi, J. Shi and L. Zhao, Optoelectronics Letters 11, 213 (2015).
[7] A. S. Acampora and S. V. Krishnamurthy, IEEE Personal Communications 6, 62 (1999).
[8] M. Safari and M. Uysal, IEEE Transactions on Wireless Communications 7, 5441 (2008).
[9] M. A. Kashani and M. Uysal, Journal of Optical Communications & Networking 5, 901 (2013).
[10] T. Cao, P. Wang, L. Guo, B. Yang, J. Li and Y. Yang, Chinese Optics Letters 13, 1 (2015).
[11] A. A. Farid and S. Hranilovic, Journal of Lightwave Technology 25, 1702 (2007).
[12] Wolfram, http://functions.wolfram.com/07.34.21.0002. 01, 2001.
[13] A. Papoulis, Probability, Random Variables, and Stochastic Processes, McGraw-Hill, 1991.
[14] J. Lu, K. B. Letaief, J. C. Chuang and M. L. Liou, IEEE Transactions Communications 47, 181 (1999).
[15] P. Concus, D. Cassatt, G. Jaehnig and E. Melby, Mathematics of Computation 17, 245 (1963).