Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system

Amel Farhat; Mourad Menif; Catherine Lepers; Houria Rezig; Philippe Gallion

doi:10.1117/12.806880

Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system

Amel Farhat
, Mourad Menif
, Catherine Lepers
, Houria Rezig
, Philippe Gallion

Ecole Nationale d'Ingénieurs de Tunis
Ecl. Natl. d'Ing. de Tunis
CNRS LTCI
University of Carthage, Ecole Supérieure des Communications de Tunis
UMR 8523–PhLAM–Physique des Lasers Atomes et Molécules

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Citations (Scopus)

Abstract

In this paper, we compare the performances of a coherent versus incoherent Direct Sequence Optical Code Division Multiple Access (DS-OCDMA) system. Superstructured Fiber Bragg Grating (S-FBG) encoders/decoders are used to implement unipolar codes such as Prime Sequence (PS) and Extended Quadratic Codes (EQC) codes. We implement the Importance Sampling (IS) technique, which is a variant of the well-known Monte-Carlo (MC) method, to evaluate the Bit Error Rate (BER) performances of the system. Our simulation results depict that coherent system outperforms the incoherent one. The last system can be used but a BER floor is demonstrated due to the beat noise of the incoherent source. We show that increasing bit rate leads to a deterioration of the BER behavior and requiring an increase of the optical bandwidth of the signal.

Original language	English
Title of host publication	Photonics North 2008
DOIs	https://doi.org/10.1117/12.806880
Publication status	Published - 26 Sept 2008
Externally published	Yes
Event	Photonics North 2008 - Montreal, QC, Canada Duration: 2 Jun 2008 → 4 Jun 2008

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7099
ISSN (Print)	0277-786X

Conference

Conference	Photonics North 2008
Country/Territory	Canada
City	Montreal, QC
Period	2/06/08 → 4/06/08

Keywords

Beat noise
Coherent source
DS-OCDMA
Importance sampling
Monte Carlo
Unipolar codes

Access to Document

10.1117/12.806880

Cite this

@inproceedings{d3a2fbbe015844fe8916f130890061c8,

title = "Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system",

abstract = "In this paper, we compare the performances of a coherent versus incoherent Direct Sequence Optical Code Division Multiple Access (DS-OCDMA) system. Superstructured Fiber Bragg Grating (S-FBG) encoders/decoders are used to implement unipolar codes such as Prime Sequence (PS) and Extended Quadratic Codes (EQC) codes. We implement the Importance Sampling (IS) technique, which is a variant of the well-known Monte-Carlo (MC) method, to evaluate the Bit Error Rate (BER) performances of the system. Our simulation results depict that coherent system outperforms the incoherent one. The last system can be used but a BER floor is demonstrated due to the beat noise of the incoherent source. We show that increasing bit rate leads to a deterioration of the BER behavior and requiring an increase of the optical bandwidth of the signal.",

keywords = "Beat noise, Coherent source, DS-OCDMA, Importance sampling, Monte Carlo, Unipolar codes",

author = "Amel Farhat and Mourad Menif and Catherine Lepers and Houria Rezig and Philippe Gallion",

year = "2008",

month = sep,

day = "26",

doi = "10.1117/12.806880",

language = "English",

isbn = "9780819473288",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Photonics North 2008",

note = "Photonics North 2008 ; Conference date: 02-06-2008 Through 04-06-2008",

}

Farhat, A, Menif, M, Lepers, C, Rezig, H & Gallion, P 2008, Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system. in Photonics North 2008., 70991N, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7099, Photonics North 2008, Montreal, QC, Canada, 2/06/08. https://doi.org/10.1117/12.806880

Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system. / Farhat, Amel; Menif, Mourad; Lepers, Catherine et al.
Photonics North 2008. 2008. 70991N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7099).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system

AU - Farhat, Amel

AU - Menif, Mourad

AU - Lepers, Catherine

AU - Rezig, Houria

AU - Gallion, Philippe

PY - 2008/9/26

Y1 - 2008/9/26

N2 - In this paper, we compare the performances of a coherent versus incoherent Direct Sequence Optical Code Division Multiple Access (DS-OCDMA) system. Superstructured Fiber Bragg Grating (S-FBG) encoders/decoders are used to implement unipolar codes such as Prime Sequence (PS) and Extended Quadratic Codes (EQC) codes. We implement the Importance Sampling (IS) technique, which is a variant of the well-known Monte-Carlo (MC) method, to evaluate the Bit Error Rate (BER) performances of the system. Our simulation results depict that coherent system outperforms the incoherent one. The last system can be used but a BER floor is demonstrated due to the beat noise of the incoherent source. We show that increasing bit rate leads to a deterioration of the BER behavior and requiring an increase of the optical bandwidth of the signal.

AB - In this paper, we compare the performances of a coherent versus incoherent Direct Sequence Optical Code Division Multiple Access (DS-OCDMA) system. Superstructured Fiber Bragg Grating (S-FBG) encoders/decoders are used to implement unipolar codes such as Prime Sequence (PS) and Extended Quadratic Codes (EQC) codes. We implement the Importance Sampling (IS) technique, which is a variant of the well-known Monte-Carlo (MC) method, to evaluate the Bit Error Rate (BER) performances of the system. Our simulation results depict that coherent system outperforms the incoherent one. The last system can be used but a BER floor is demonstrated due to the beat noise of the incoherent source. We show that increasing bit rate leads to a deterioration of the BER behavior and requiring an increase of the optical bandwidth of the signal.

KW - Beat noise

KW - Coherent source

KW - DS-OCDMA

KW - Importance sampling

KW - Monte Carlo

KW - Unipolar codes

U2 - 10.1117/12.806880

DO - 10.1117/12.806880

M3 - Conference contribution

AN - SCOPUS:52249118088

SN - 9780819473288

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Photonics North 2008

T2 - Photonics North 2008

Y2 - 2 June 2008 through 4 June 2008

ER -

Performance comparison of coherent versus incoherent direct sequence optical code division multiple access system

Abstract

Publication series

Conference

Keywords

Access to Document

Fingerprint

Cite this