naa a22 4500 510795714 CHVBK 20180411083335.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11277-011-0489-y doi (NATIONALLICENCE)springer-10.1007/s11277-011-0489-y The Tradeoff Between Bit Error Rate and Optical Link Distance Using Laser Phase Noise Fixing Process in Coherent Optical OFDM Systems [Elektronische Daten] [Ayhan Yazgan, I. Cavdar] Orthogonal frequency division multiplexing (OFDM) is a suitable solution thanks to its many advantages known in wireless communications. On the other hand, optical communications is also used as a backbone to transmit and receive large data rates with economical and good performance. Recently, fiber optical communication and OFDM method have been combined to obtain both advantages in a communication link called Coherent Optical OFDM (CO-OFDM). In this study, Bit error rate (BER) versus distance variations are investigated for a constant signal to noise ratio in CO-OFDM systems. Results also show the performance of the CO-OFDM system at different data rates and distances for one RF carrier and one optical carrier. So far, the Telecommunication Standardization Sector standards have suggested 81 channels between 192.1 and 196.1THz in C band. Extending the number of channels using 111 more channels between 185.9 and 191.4THz in L band where optical amplifiers and laser sources are available, the total number of channels reaches up to 192. In this research, CO-OFDM technique is modeled and simulated designing a Monte Carlo simulation. Dense wavelength division multiplexing (DWDM) is the key factor to obtain 3Tb/s (192*16Gb/s) utilizing only one optical cable by covering whole C and L bands. To the best of our knowledge, this work shows the first BER versus Distance variations in a CO-OFDM communication link for 3Tb/s. Springer Science+Business Media, LLC., 2012 Coherent communications nationallicence Fiber optical communication nationallicence OFDM modulation nationallicence Optical link design nationallicence RoF nationallicence Laser phase noise nationallicence arg : Symbol phase angle nationallicence BER : Bit Error Rate nationallicence BPSK : Binary Phase Shift Keying nationallicence c : Light velocity in vacuum nationallicence CO-OFDM : Coherent Optical OFDM nationallicence D t : Chromatic Dispersion Parameter nationallicence FFT : Fast Fourier Transform nationallicence f LD : Laser frequency nationallicence f n : nth subcarrier of OFDM symbol nationallicence f S : Sampling frequency nationallicence GI : Guard interval nationallicence GVD : Group velocity dispersion nationallicence IDFT : Inverse Discrete Fourier Transform nationallicence IFFT : Inverse Fast Fourier Transform nationallicence h n : Transfer function of nth component owing to the GVD nationallicence ICI : Inter carrier Interference nationallicence ISI : Inter-symbol Interference nationallicence L : Link distance nationallicence Lmax : Maximum Link Distance nationallicence MCM : Multi carrier modulation nationallicence MZM : Mach Zehnder Modulator nationallicence n : Refractive index nationallicence n mn : The noise component of nth subcarrier of mth symbol nationallicence NSC : The number of OFDM subcarrier nationallicence NSD : The number of OFDM data subcarrier nationallicence NSP : The number of OFDM pilot subcarrier nationallicence OFDM : Orthogonal Frequency Division Multiplexing nationallicence OOK : On-Off Keying nationallicence RF : Radio Frequency nationallicence RoF : Radio over Fiber nationallicence RTO : RF to Optical Modulation nationallicence SNR : Signal to Noise Ratio nationallicence SSMF : Standart Single Mode Fiber nationallicence T CP : Cycle Prefix duration nationallicence T S : Sampling period nationallicence T SYM : OFDM symbol duration nationallicence T U : Useful symbol duration nationallicence v : Light velocity in fiber optical cable nationallicence $${c_{mn}^-}$$ : Estimated nth subcarrier of mth symbol at receiver output nationallicence c mn : nth subcarrier of mth symbol at transmitter output nationallicence $${c_{mn}^\prime}$$ : nth subcarrier of mth symbol at receiver input nationallicence $${c_{\it mn}^{\it fs}}$$ : nth subcarrier of mth symbol after laser phase noise compensation at receiver nationallicence $${\bar{{\varphi }}_m }$$ : Estimated total phase drift for mth OFDM symbol nationallicence $${\varphi _m}$$ : Phase drift for mth OFDM symbol nationallicence $${\varphi_n }$$ : nth subcarrier phase component of OFDM symbol nationallicence $${\varphi_{\it LD}}$$ : Phase drift of the Laser diode nationallicence $${\varphi_{D}\left( n \right)}$$ : Phase dispersion of nth subcarrier because of Chromatic dispersion nationallicence Δf : Subcarrier spacing nationallicence ΔG : Guard interval length nationallicence Yazgan Ayhan Department of Electrical-Electronics Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut Cavdar I. Department of Electrical-Electronics Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/3(2013-02-01), 907-919 0929-6212 68:3<907 2013 68 11277 https://doi.org/10.1007/s11277-011-0489-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-011-0489-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yazgan Ayhan Department of Electrical-Electronics Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 700 1- Cavdar I. Department of Electrical-Electronics Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/3(2013-02-01), 907-919 0929-6212 68:3<907 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer