Rateless Coding on Experimental Temporally Correlated FSO Channels

被引：48

作者：

Anguita, Jaime A. ^{[1
]}

Neifeld, Mark A. ^{[2
,3
]}

Hildner, Bjoern ^{[2
]}

Vasic, Bane ^{[2
]}

机构：

[1] Univ Los Andes, Coll Engn & Appl Sci, Santiago 7620001, Chile

[2] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85719 USA

[3] Univ Arizona, Coll Opt Sci, Tucson, AZ 85719 USA

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2010年 / 28卷 / 07期

关键词：

Atmospheric turbulence; error-correction coding; free-space optical (FSO) communication; laser applications; optical communication; rateless coding; soft decoding; time-varying channels; ATMOSPHERIC-TURBULENCE CHANNELS; SPACE OPTICAL COMMUNICATION; PARITY-CHECK CODES; COHERENT GAUSSIAN-BEAM; SCINTILLATION REDUCTION; PROBABILITY DENSITY; WIRELESS LINKS; TRANSMISSION; PERFORMANCE; DIVERSITY;

D O I：

10.1109/JLT.2010.2040136

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a demonstration of two error-correction coding schemes that can successfully operate on a free-space optical (FSO) communication channel subject to atmospheric turbulence. The codes (a puntured Low-density parity-check code and a Raptor code) operate by continuously adapting the information rate to accommodate the varying channel conditions. Because these coding schemes require the use of a feedback channel, we evaluate the bandwidth cost incurred. The evaluation of the codes is performed offline and uses experimental optical signals recorded from an FSO link. We analyze the temporal characteristics of the experimental channels and compare the performance of the codes for different bit rates to asses the effect of temporal correlation and imperfect channel state information.

引用

页码：990 / 1002

页数：13

共 47 条

[1] Mathematical model for the irradiance probability density function of a laser beam propagating through turbulent media [J].

Al-Habash, MA ;

Andrews, LC ;

Phillips, RL .

OPTICAL ENGINEERING, 2001, 40 (08) :1554-1562

[2]

Andrews L. C., 2005, SPIE, V2nd, DOI DOI 10.1117/3.626196

[3] Theory of optical scintillation [J].

Andrews, LC ;

Phillips, RL ;

Hopen, CY ;

Al-Habash, MA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1999, 16 (06) :1417-1429

[4] Aperture averaging of optical scintillations: power fluctuations and the temporal spectrum [J].

Andrews, LC ;

Phillips, RL ;

Hopen, CY .

WAVES IN RANDOM MEDIA, 2000, 10 (01) :53-70

[5] Spatial correlation and irradiance statistics in a multiple-beam terrestrial free-space optical communication link [J].

Anguita, Jaime A. ;

Neifeld, Mark A. ;

Vasic, Bane V. .

APPLIED OPTICS, 2007, 46 (26) :6561-6571

[6] Atmospheric-turbulence-induced power-fade statistics for a multiaperture optical receiver [J].

Belmonte, A ;

Comeron, A ;

Rubio, JA ;

Bara, J ;

Fernandez, E .

APPLIED OPTICS, 1997, 36 (33) :8632-8638

[7] Rateless coding over fading channels [J].

Castura, J ;

Mao, YY .

IEEE COMMUNICATIONS LETTERS, 2006, 10 (01) :46-48

[8] APERTURE AVERAGING OF OPTICAL SCINTILLATIONS IN THE TURBULENT ATMOSPHERE [J].

CHURNSIDE, JH .

APPLIED OPTICS, 1991, 30 (15) :1982-1994

[9] Performance bounds for free-space optical MIMO systems with APD receivers in atmospheric turbulence [J].

Cvijetic, Neda ;

Wilson, Stephen G. ;

Brandt-Pearce, Maite .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2008, 26 (03) :3-12

[10] Performance evaluation of a novel converged architecture for digital-video transmission over optical wireless channels [J].

Cvijetic, Neda ;

Wilson, Stephen G. ;

Zarubica, Radivoje .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2007, 25 (11) :3366-3373

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