TY - JOUR
T1 - Performance analysis of heterodyne-detected OCDMA systems using PoLSK modulation over a free-space optical turbulence channel
AU - Bai, Fan
AU - Su, Yuwei
AU - Sato, Takuro
N1 - Publisher Copyright:
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
PY - 2015/10/16
Y1 - 2015/10/16
N2 - This paper presents a novel model of heterodyne-detected optical code-division multiple-access (OCDMA) systems employing polarization shift keying (PolSK) modulation over a free-space optical (FSO) turbulence channel. In this article, a new transceiver configuration and detailed analytical model for the proposed system are provided and discussed, taking into consideration the potential of heterodyne detection on mitigating the impact of turbulence-induced irradiance fluctuation on the performance of the proposed system under the gamma-gamma turbulence channel. Furthermore, we derived the closed-form expressions for the system error probability and outage probability, respectively. We determine the advantages of the proposed modeling by performing a comparison with a direct detection scheme obtained from an evaluation of link performance under the same environment conditions. The presented work also shows the most significant impact factor that degrades the performance of the proposed system and indicates that the proposed approach offers an optimum link performance compared to conventional cases.
AB - This paper presents a novel model of heterodyne-detected optical code-division multiple-access (OCDMA) systems employing polarization shift keying (PolSK) modulation over a free-space optical (FSO) turbulence channel. In this article, a new transceiver configuration and detailed analytical model for the proposed system are provided and discussed, taking into consideration the potential of heterodyne detection on mitigating the impact of turbulence-induced irradiance fluctuation on the performance of the proposed system under the gamma-gamma turbulence channel. Furthermore, we derived the closed-form expressions for the system error probability and outage probability, respectively. We determine the advantages of the proposed modeling by performing a comparison with a direct detection scheme obtained from an evaluation of link performance under the same environment conditions. The presented work also shows the most significant impact factor that degrades the performance of the proposed system and indicates that the proposed approach offers an optimum link performance compared to conventional cases.
KW - Free-space optical (FSO)
KW - Gamma-gamma turbulence model
KW - Heterodyne detection
KW - Optical CDMA (OCDMA)
KW - Polarization modulation
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U2 - 10.3390/electronics4040785
DO - 10.3390/electronics4040785
M3 - Article
AN - SCOPUS:84958176663
SN - 2079-9292
VL - 4
SP - 785
EP - 798
JO - Electronics (Switzerland)
JF - Electronics (Switzerland)
IS - 4
ER -