期刊名称:International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN:2320-9798
电子版ISSN:2320-9801
出版年度:2015
卷号:3
期号:8
DOI:10.15680/IJIRCCE.2015. 0308119
出版社:S&S Publications
摘要:The innovation of novel schemes of optical amplification, modulation format, or fiber design arerequired for fiber capacity of Tb/s poses new challenges. The convergence system of Coherent detection-OFDMWDM-RoF network which can improves the spectral efficiency of the wireless access system and also support theseamless integration between air and optical transmission is to be proposed. The performance of the system in terms ofBER, Q-factor, OSNR, fiber length, and receiving constellation is evaluated. Dispersion management and modulationformats have been studied for 8 Channel-WDM optical communication system with per channel bit rate of 1Tbit/s. Qfactorfor 4-QAM = 81 is 3 times greater than DPSK and 2 times greater than 8-QAM using FBG. By comparingresults of 4-QAM, 8-QAM and DPSK, it is found that 4-QAM performs better in terms of fiber length, OSNR, Q-factorand BER
关键词:Coherent detectionOrthogonal frequency division multiplexing; Wavelength Division Multiplexing;Radio over fiber; Modulation Techniques; Fiber Bragg Grating; Coherent receiving