[1] ArmstrongJ., J. Lightwave Technol.27, 189 (2009).

[2] ChenH.LiF.XiaoJ.CaoZ.YuJ., J. Optoelectron. Laser22, 1057 (2011).

[3] PengL., “Research on the Synchronization Algorithm of Direct Detection Optical OFDM System,” Ph.D. Dissertation (Hunan University, 2013).

[4] ChenM.HeJ.CaoZ.TangJ.ChenL., Opt. Commun.326, 80 (2014).OPCOB80030-4018

[5] ZhangQ.Hugues-SalasE.LingY.ZhangH.GiddingsR.ZhangJ.WangM.TangJ., Opt. Express22, 6339 (2014).OPEXFF1094-4087

[6] HanS.LeeJ., IEEE Trans. Wireless Commun.12, 56 (2005).

[7] ZengF.LiuL.ChenH.YangJ., J. Terahertz Sci. Electron. Inf. Technol.13, 71 (2015).

[8] DengR.FanQ.DongH.HeJ.ChenL., J. Optoelectron. Laser26, 877 (2015).

[9] TellamburaC., Electron. Lett.33, 1608 (1997).ELLEAK0013-5194

[10] ZhuX.ZhuG.LinP., Comput. Eng. Sci.3l, 109 (2009).

[11] LiF.YuJ.FangY.DongZ.YingX., Opt. Express22, 8742 (2014).OPEXFF1094-4087

[12] LiuX.BuchaliF., Opt. Express16, 21944 (2008).OPEXFF1094-4087

[13] ChenM.HeJ.ChenL., J. Opt. Commun. Netw.6, 18 (2014).

[14] ZengX.LiuJ.WangJ.JiaL.GaoJ., J. Optoelectron. Laser25, 1481 (2014).