Evaluation of coverage area for a wide line-of-sight indoor optical free-space communication system employing coherent detection

被引：13

作者：

Jafar, M. ^{[1
,2
]}

O'Brien, D. C. ^{[2
]}

Stevens, C. J. ^{[2
]}

Edwards, D. J. ^{[2
]}

机构：

[1] Univ Bath, Dept Elect & Elect Engn, Bath BA2 7AY, Avon, England

[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

IET COMMUNICATIONS | 2008年 / 2卷 / 01期

关键词：

D O I：

10.1049/iet-com:20060225

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：

The application of coherent detection to indoor optical free-space communications is considered here. Analytical expressions are derived for a wide line-of-sight (W-LOS) optical link which determine the coverage area and the required photo-detection area given different binary digital transmission schemes and a given bit rate. The coverage area is maximised for systems using both metal-semiconductor-metal (NISM) and PIN photo-detectors. Results show that MSM photo-detectors, due to their inherently lower capacitance per unit photo-detection area, result in a greater coverage area than their PIN counterparts. To demonstrate the viability of implementing coherent detection indoors, a 200 Mb/s LOS optical link which uses coherent detection is also reported.

引用

页码：18 / 26

页数：9

共 29 条

[1] Agrawal G.P., 2002, FIBER OPTIC COMMUNIC
[2] Agrawal G. P, 1997, FIBER OPTIC COMMUNIC, V2nd
[3] ALEXANDER SB, 1997, TUTORIAL TEXTS OP TT, V22
[4] Barry J. R., 1991, IEEE Network, V5, P44, DOI 10.1109/65.103810
[5] FREQUENCY-NOISE CANCELLATION IN SEMICONDUCTOR-LASERS BY NONLINEAR HETERODYNE-DETECTION
BONDURANT, RS
WELFORD, D
ALEXANDER, SB
CHAN, VWS
[J]. OPTICS LETTERS, 1986, 11 (12) : 791 - 793
[6] Boyd R.W., 1983, Radiometry and the detection of optical radiation
[7] OPTIMIZATION OF HIGH-SPEED METAL-SEMICONDUCTOR-METAL PHOTODETECTORS
BURM, J
LITVIN, KI
SCHAFF, WJ
EASTMAN, LF
[J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 1994, 6 (06) : 722 - 724
[8] CARLSON A, 1987, COMMUNICATION SYSTEM
[9] NANOSCALE TERA-HERTZ METAL-SEMICONDUCTOR-METAL PHOTODETECTORS
CHOU, SY
LIU, MY
[J]. IEEE JOURNAL OF QUANTUM ELECTRONICS, 1992, 28 (10) : 2358 - 2368
[10] Analysis of infrared wireless links employing multibeam transmitters and imaging diversity receivers
Djahani, P
Kahn, JM
[J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 2000, 48 (12) : 2077 - 2088

← 1 2 3 →