基于动态门限的幅度调制空间相干光通信系统

Xin Sun; Lin Li

doi:10.3788/fgxb20194009.1200

基于动态门限的幅度调制空间相干光通信系统

Translated title of the contribution: Free-space Coherent Optical Communication System Using Irradiance Modulation with Dynamic Detection Threshold

Xin Sun^*
, Lin Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Free-space coherent optical communication system using irradiance modulation(IM/CD) with dynamic detection threshold is proposed. Compared with traditional irradiance modulation and direct detection(IM/DD) systems, the system we proposed can detect the signal without requiring the knowledge of instantaneous channel state information(CSI) and the probability density function(pdf) of the turbulence model and achieve better average bit error rate(BER) just by only improving the LO power. Analytical expressions are derived for the average bit error rate of the system. Numerical studies show that the proposed system can achieve comparable performance to the idealized adaptive detection system, with a signal-to-noise ratio performance loss of only 1.4 dB at a BER of 10^-9 for a lognormal turbulence channel with σ=0.25 and phase noise with σ_φ=0.07 when the local oscillator(LO) amplitude and transmitting amplitude are assumed to be unity.

Translated title of the contribution	Free-space Coherent Optical Communication System Using Irradiance Modulation with Dynamic Detection Threshold
Original language	Chinese (Traditional)
Pages (from-to)	1200-1206
Number of pages	7
Journal	Chinese Journal of Luminescence
Volume	40
Issue number	9
DOIs	https://doi.org/10.3788/fgxb20194009.1200
Publication status	Published - 1 Sept 2019
Externally published	Yes

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title = "基于动态门限的幅度调制空间相干光通信系统",

abstract = "Free-space coherent optical communication system using irradiance modulation(IM/CD) with dynamic detection threshold is proposed. Compared with traditional irradiance modulation and direct detection(IM/DD) systems, the system we proposed can detect the signal without requiring the knowledge of instantaneous channel state information(CSI) and the probability density function(pdf) of the turbulence model and achieve better average bit error rate(BER) just by only improving the LO power. Analytical expressions are derived for the average bit error rate of the system. Numerical studies show that the proposed system can achieve comparable performance to the idealized adaptive detection system, with a signal-to-noise ratio performance loss of only 1.4 dB at a BER of 10-9 for a lognormal turbulence channel with σ=0.25 and phase noise with σφ=0.07 when the local oscillator(LO) amplitude and transmitting amplitude are assumed to be unity.",

keywords = "Coherent detection, Dynamic detection threshold, Free-space optical communications",

author = "Xin Sun and Lin Li",

year = "2019",

month = sep,

day = "1",

doi = "10.3788/fgxb20194009.1200",

language = "繁体中文",

volume = "40",

pages = "1200--1206",

journal = "Chinese Journal of Luminescence",

issn = "1000-7032",

publisher = "Editorial Office of Chinese Optics",

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}

TY - JOUR

T1 - 基于动态门限的幅度调制空间相干光通信系统

AU - Sun, Xin

AU - Li, Lin

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Free-space coherent optical communication system using irradiance modulation(IM/CD) with dynamic detection threshold is proposed. Compared with traditional irradiance modulation and direct detection(IM/DD) systems, the system we proposed can detect the signal without requiring the knowledge of instantaneous channel state information(CSI) and the probability density function(pdf) of the turbulence model and achieve better average bit error rate(BER) just by only improving the LO power. Analytical expressions are derived for the average bit error rate of the system. Numerical studies show that the proposed system can achieve comparable performance to the idealized adaptive detection system, with a signal-to-noise ratio performance loss of only 1.4 dB at a BER of 10-9 for a lognormal turbulence channel with σ=0.25 and phase noise with σφ=0.07 when the local oscillator(LO) amplitude and transmitting amplitude are assumed to be unity.

AB - Free-space coherent optical communication system using irradiance modulation(IM/CD) with dynamic detection threshold is proposed. Compared with traditional irradiance modulation and direct detection(IM/DD) systems, the system we proposed can detect the signal without requiring the knowledge of instantaneous channel state information(CSI) and the probability density function(pdf) of the turbulence model and achieve better average bit error rate(BER) just by only improving the LO power. Analytical expressions are derived for the average bit error rate of the system. Numerical studies show that the proposed system can achieve comparable performance to the idealized adaptive detection system, with a signal-to-noise ratio performance loss of only 1.4 dB at a BER of 10-9 for a lognormal turbulence channel with σ=0.25 and phase noise with σφ=0.07 when the local oscillator(LO) amplitude and transmitting amplitude are assumed to be unity.

KW - Coherent detection

KW - Dynamic detection threshold

KW - Free-space optical communications

UR - https://www.scopus.com/pages/publications/85073059122

U2 - 10.3788/fgxb20194009.1200

DO - 10.3788/fgxb20194009.1200

M3 - 文章

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SP - 1200

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JO - Chinese Journal of Luminescence

JF - Chinese Journal of Luminescence

IS - 9

ER -

基于动态门限的幅度调制空间相干光通信系统

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