Theoretical and experimental studies of turbo product code with time diversity in free space optical communication

被引：12

作者：

Han, Yaoqiang ^{[1
]}

Dang, Anhong ^{[1
]}

Ren, Yongxiong ^{[1
]}

Tang, Junxiong ^{[1
]}

Guo, Hong ^{[1
]}

机构：

[1] Peking Univ, State Key Lab Adv Opt Commun Syst & Networks, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 26期

关键词：

ATMOSPHERIC-TURBULENCE CHANNELS; WIRELESS COMMUNICATIONS; LINKS; NETWORKS; PERFORMANCE;

D O I：

10.1364/OE.18.026978

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In free space optical communication (FSOC) systems, channel fading caused by atmospheric turbulence degrades the system performance seriously. However, channel coding combined with diversity techniques can be exploited to mitigate channel fading. In this paper, based on the experimental study of the channel fading effects, we propose to use turbo product code (TPC) as the channel coding scheme, which features good resistance to burst errors and no error floor. However, only channel coding cannot cope with burst errors caused by channel fading, interleaving is also used. We investigate the efficiency of interleaving for different interleaving depths, and then the optimum interleaving depth for TPC is also determined. Finally, an experimental study of TPC with interleaving is demonstrated, and we show that TPC with interleaving can significantly mitigate channel fading in FSOC systems. (C)2010 Optical Society of America

引用

页码：26978 / 26988

页数：11

共 27 条

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