A Novel Discrete Wavelet Transform based Coherent Optical OFDM System

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Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Institute of Electrical and Electronics Engineers Inc.

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In optical communication, which is an important part of the Radio over Fiber (RoF) systems, coherent optical OFDM (CO-OFDM) systems allow the use of amplitude and phase belong to the light at the same time for data transmission. However, the data transmission speed and distance of the CO-OFDM system are limited by optical channel impairment effects. One of the major disadvantages of CO-OFDM systems is its sensitivity to fiber nonlinearity effects. For this reason, in order to be used the new signal processing techniques efficiently in the receiver, the optical channel information must be estimated and the received signal must be equalized. In this work, different equalizer constructions are investigated and a frequency domain channel equalizer used in the novel DWT-based CO-OFDM system has been proposed. With the simulation studies made, the equalizers were compared and the results were given with different changes. From the obtained simulation results, it is seen that the proposed method provides about 5.5 OSNR gain for 1E-4 BER value. © 2018 IEEE.

Açıklama

41st International Conference on Telecommunications and Signal Processing -- TSP 2018 -- 4 July 2018 through 6 July 2018 -- Athens -- 138942

Anahtar Kelimeler

CO-OFDM systems, discrete wavelet transform, fiber nonlinearity impairment, frequency domain equalizer, Radio over Fiber

Kaynak

2018 41st International Conference on Telecommunications and Signal Processing, TSP 2018

WoS Q Değeri

Scopus Q Değeri

N/A

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Künye