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Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi

Yıl 2020, Cilt: 10 Sayı: 1, 45 - 48, 30.06.2020

Öz

Bu makalede, turbo çarpım kodlarının(TPC) serbest uzay
optik(FSO) sistemlerinin performansa olan etkisi
incelenmiştir. Atmosfer modeli olarak log-normal dağılım
seçilmiştir. MATLAB benzetim çalışmaları zayıf ve orta
türbülansta gerçeklenmiştir. Turbo çarpım kodlarını
oluşturan kod bileşenleri, genişletilmiş hamming ve
genişletilmiş Bose–Chaudhuri–Hocquenghem(BCH)
kodları olark kullanılmıştır. Benzetim sonuçlarına göre,
özellikle orta türbülans altında TPC kullanımı ile
hedeflenen bit hata oranına(bit error rate(BER))ulaşırken
15dB’ye kadar kod kazancı sağlanabilmektedir. Bu kod
kazancı BCH tabanlı TPC kullanılırsa daha fazla iken
hamming tabanlı TPC kullanılırsa daha az olmaktadır.
Düşük kod oranlı ve BCH kod bileşeni ile oluşturulan TPC
ile 0dB sinyal-gürültü oranı(signal to noise ratio(SNR))
değerinde bile sistemin BER’i 10^-5 ’e düşebilmektedir.

Kaynakça

  • [1] P. Elias, "Error-Free Coding," Trans. IRE Prof. Group Inf. Theory, vol. 4, no. 4, pp. 29-37, 1954. [2] C. Berrou and A. Glavieux, "Near Optimum Error Correcting Coding And Decoding: Turbo-Codes," Ieee Transactions On Communication, vol. 44, no. 10, pp. 1261-1271, 1996. [3] R. M. Pyndiah, "Near-Optimum Decoding of Product Codes: Block Turbo Codes," Ieee Transactions On Communications, vol. 46, no. 8, pp. 1003-1010, 1998. [4] J. Li, E. Kurtas, K. R. Narayanan, and C. N. Georghiades, "On the Performance of Turbo Product Codes over Partial Response Channels," 37, no. 4, pp. 1932-1934, 2001. [5] C. Argon and S. W. McLaughlin, "Optical OOK-CDMA and PPM-CDMA systems with turbo product codes," Journal of Lightwave Technology, vol. 20, no. 9, pp. 1653-1663, 2002. [6] S. Lingyan, S. Hongwei, Z. Keirn, and B. V. K. V. Kumar, "Field programmable gate array (FPGA) for iterative code evaluation," IEEE Transactions on Magnetics, vol. 42, no. 2, pp. 226-231, 2006. [7] T. Mizuochi et al., "Forward Error Correction Based on Block Turbo Code With 3-Bit Soft Decision for 10-Gb/s Optical Communication Systems," IEEE Journal of Selected Topics in Quantum Electronics, vol. 10, no. 2, pp. 376-386, 2004. [8] Y. Miyata, K. Kubo, K. Onohara, W. Matsumoto, H. Yoshida, and T. Mizuochi, "UEP-BCH Product Code based Hard-Decision FEC for 100 Gb/s Optical Transport Networks," in Proc. Opt. Fiber Commun. Conf. Expo. Nat. Fiber Opt. Eng. Conf., Los Angeles, CA, USA, 2012, pp. 1-3. [9] IEEE Standard for Broadband over Power Line Networks: Medium Access Control and Physical Layer Specifications, 2010. [10] Air Interface for Mobile Broadband Wireless Access Systems Supporting Vehicular Mobility— Physical and Media Access Control Layer Specification, 2008. [11] Air Interface for Broadband Wireless Access Systems, 2009. [12] H. R. Khodadadi, M. H. Ghezel Ayagh, and A. Chaman Motlagh, "Analysis of link availability and capacity in multiple-input/single-output-Bose–Chaudhuri–Hocquenghem FSO systems under various turbulence conditions with pointing errors," IET Communications, vol. 11, no. 8, pp. 1305-1312, 2017. [13] L. Wang, R. Gao, X. Chen, Q. Xu, and Y. Tang, "QC-LPDC Code modulation with probabilistic shaping for atmospheric turbulence channel," Optics Communications, vol. 453, 2019. [14] X. Sun, D. Zou, Z. Qu, and I. B. Djordjevic, "Run-time reconfigurable adaptive LDPC coding for optical channels," Opt Express, vol. 26, no. 22, pp. 29319-29329, Oct 29 2018. [15] J. Fang et al., "Polar-Coded MIMO FSO Communication System Over Gamma-Gamma Turbulence Channel With Spatially Correlated Fading," Journal of Optical Communications and Networking, vol. 10, no. 11, 2018. [16] S. Hirasawa, M. Kasahara, Y. Sugiyama, and T. Namekawa, "Modified Product Codes," Ieee Transactions On Information Theory, vol. 30, no. 2, pp. 299-306, 1984. [17] X. Changlong, L. Ying-Chang, and L. Wing Seng, "Shortened Turbo Product Codes: Encoding Design and Decoding Algorithm," IEEE Transactions on Vehicular Technology, vol. 56, no. 6, pp. 3495-3501, 2007. [18] Y. Wang, Y. Du, S. Yu, and K. T. Chan, "An Adaptive UEP BTC STBC OFDM System for Robust Video Transmission," presented at the 2005 IEEE 7th Workshop on Multimedia Signal Processing, USA, 2005. [19] H. Mukhtar, A. Al-Dweik, and A. Shami, "Turbo Product Codes: Applications, Challenges, and Future Directions," IEEE Communications Surveys & Tutorials, vol. 18, no. 4, pp. 3052-3069, 2016. [20] Z. Ghassemlooy, W. Popoola, and S. Rajbhandar, Wireless Communications System and Channel Modelling with MATLAB. CRC Press, 2012, p. 575.

Performance Analysis of Turbo Product Codes on Free Space Optics Communication Systems

Yıl 2020, Cilt: 10 Sayı: 1, 45 - 48, 30.06.2020

Öz

Inthisarticle, theeffect of turbo productcodes(TPC) overtheperformance of freespaceopticssystems is analyzed. Log-normal distribution is selected as theturbulence model. MATLAB simulationsarecarriedout in weak and moderate turbulence. Component codes which construct turbo product codes are used as extended hamming and extended Bose–Chaudhuri–Hocquenghem(BCH) codes. According to simulation results, it can be provided that up to15dB code gain to reach the target bit error rate(BER) with the use of TPC especially under moderate turbulence. While this code gain is more if BCH based TPC is used, it becomes less if hamming based TPC is used. With low code rate and TPC which is constructed with BCH codecomponent, BER of system can decreaseto even in 0dB signal to noise ratio(SNR).

Kaynakça

  • [1] P. Elias, "Error-Free Coding," Trans. IRE Prof. Group Inf. Theory, vol. 4, no. 4, pp. 29-37, 1954. [2] C. Berrou and A. Glavieux, "Near Optimum Error Correcting Coding And Decoding: Turbo-Codes," Ieee Transactions On Communication, vol. 44, no. 10, pp. 1261-1271, 1996. [3] R. M. Pyndiah, "Near-Optimum Decoding of Product Codes: Block Turbo Codes," Ieee Transactions On Communications, vol. 46, no. 8, pp. 1003-1010, 1998. [4] J. Li, E. Kurtas, K. R. Narayanan, and C. N. Georghiades, "On the Performance of Turbo Product Codes over Partial Response Channels," 37, no. 4, pp. 1932-1934, 2001. [5] C. Argon and S. W. McLaughlin, "Optical OOK-CDMA and PPM-CDMA systems with turbo product codes," Journal of Lightwave Technology, vol. 20, no. 9, pp. 1653-1663, 2002. [6] S. Lingyan, S. Hongwei, Z. Keirn, and B. V. K. V. Kumar, "Field programmable gate array (FPGA) for iterative code evaluation," IEEE Transactions on Magnetics, vol. 42, no. 2, pp. 226-231, 2006. [7] T. Mizuochi et al., "Forward Error Correction Based on Block Turbo Code With 3-Bit Soft Decision for 10-Gb/s Optical Communication Systems," IEEE Journal of Selected Topics in Quantum Electronics, vol. 10, no. 2, pp. 376-386, 2004. [8] Y. Miyata, K. Kubo, K. Onohara, W. Matsumoto, H. Yoshida, and T. Mizuochi, "UEP-BCH Product Code based Hard-Decision FEC for 100 Gb/s Optical Transport Networks," in Proc. Opt. Fiber Commun. Conf. Expo. Nat. Fiber Opt. Eng. Conf., Los Angeles, CA, USA, 2012, pp. 1-3. [9] IEEE Standard for Broadband over Power Line Networks: Medium Access Control and Physical Layer Specifications, 2010. [10] Air Interface for Mobile Broadband Wireless Access Systems Supporting Vehicular Mobility— Physical and Media Access Control Layer Specification, 2008. [11] Air Interface for Broadband Wireless Access Systems, 2009. [12] H. R. Khodadadi, M. H. Ghezel Ayagh, and A. Chaman Motlagh, "Analysis of link availability and capacity in multiple-input/single-output-Bose–Chaudhuri–Hocquenghem FSO systems under various turbulence conditions with pointing errors," IET Communications, vol. 11, no. 8, pp. 1305-1312, 2017. [13] L. Wang, R. Gao, X. Chen, Q. Xu, and Y. Tang, "QC-LPDC Code modulation with probabilistic shaping for atmospheric turbulence channel," Optics Communications, vol. 453, 2019. [14] X. Sun, D. Zou, Z. Qu, and I. B. Djordjevic, "Run-time reconfigurable adaptive LDPC coding for optical channels," Opt Express, vol. 26, no. 22, pp. 29319-29329, Oct 29 2018. [15] J. Fang et al., "Polar-Coded MIMO FSO Communication System Over Gamma-Gamma Turbulence Channel With Spatially Correlated Fading," Journal of Optical Communications and Networking, vol. 10, no. 11, 2018. [16] S. Hirasawa, M. Kasahara, Y. Sugiyama, and T. Namekawa, "Modified Product Codes," Ieee Transactions On Information Theory, vol. 30, no. 2, pp. 299-306, 1984. [17] X. Changlong, L. Ying-Chang, and L. Wing Seng, "Shortened Turbo Product Codes: Encoding Design and Decoding Algorithm," IEEE Transactions on Vehicular Technology, vol. 56, no. 6, pp. 3495-3501, 2007. [18] Y. Wang, Y. Du, S. Yu, and K. T. Chan, "An Adaptive UEP BTC STBC OFDM System for Robust Video Transmission," presented at the 2005 IEEE 7th Workshop on Multimedia Signal Processing, USA, 2005. [19] H. Mukhtar, A. Al-Dweik, and A. Shami, "Turbo Product Codes: Applications, Challenges, and Future Directions," IEEE Communications Surveys & Tutorials, vol. 18, no. 4, pp. 3052-3069, 2016. [20] Z. Ghassemlooy, W. Popoola, and S. Rajbhandar, Wireless Communications System and Channel Modelling with MATLAB. CRC Press, 2012, p. 575.
Toplam 1 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Konular Mühendislik
Bölüm Akademik ve/veya teknolojik bilimsel makale
Yazarlar

Mert Bayraktar

Yayımlanma Tarihi 30 Haziran 2020
Gönderilme Tarihi 6 Şubat 2020
Yayımlandığı Sayı Yıl 2020 Cilt: 10 Sayı: 1

Kaynak Göster

APA Bayraktar, M. (2020). Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi. EMO Bilimsel Dergi, 10(1), 45-48.
AMA Bayraktar M. Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi. EMO Bilimsel Dergi. Haziran 2020;10(1):45-48.
Chicago Bayraktar, Mert. “Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi”. EMO Bilimsel Dergi 10, sy. 1 (Haziran 2020): 45-48.
EndNote Bayraktar M (01 Haziran 2020) Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi. EMO Bilimsel Dergi 10 1 45–48.
IEEE M. Bayraktar, “Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi”, EMO Bilimsel Dergi, c. 10, sy. 1, ss. 45–48, 2020.
ISNAD Bayraktar, Mert. “Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi”. EMO Bilimsel Dergi 10/1 (Haziran 2020), 45-48.
JAMA Bayraktar M. Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi. EMO Bilimsel Dergi. 2020;10:45–48.
MLA Bayraktar, Mert. “Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi”. EMO Bilimsel Dergi, c. 10, sy. 1, 2020, ss. 45-48.
Vancouver Bayraktar M. Serbest Uzay Optik Haberleşme Sistemlerinde Turbo Çarpım Kodların Performans Analizi. EMO Bilimsel Dergi. 2020;10(1):45-8.

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