Akademik Veri Yönetim Sistemi
Tezin Türü: Doktora
Tezin Yürütüldüğü Kurum: Gazi Üniversitesi, Mühendislik Fakültesi, Elektrik - Elektronik Mühendisliği, Türkiye
Tezin Onay Tarihi: 2023
Tezin Dili: İngilizce
Öğrenci: Mustafa ÇALIŞKAN
Asıl Danışman (Eş Danışmanlı Tezler İçin): Mehmet Çiydem
Eş Danışman: Özgül Salor Durna
Özet:
Radio
over Fiber-Passive Optical Networks (RoF-PON) are viewed as the main answer for expanding
capacity, coverage, high data rate, portability and adaptability by combining
the advantages of the fiber and RF technology for wired and wireless
communication. Wavelength Division Multiplexing (WDM) is also another
technology used in PONs to carry big data with high speed. In order to meet the
demanding requirements of broadband systems, in this study, we have proposed
WDM-RoF-PON system architecture in two different configurations: booster
amplifier and pre-amplifier. Proposed WDM-RoF-PON system utilizes a Reflective Semiconductor Optical Amplifier (RSOA) to carry 2.5 Gbps baseband (BB), 1.25 Gbps
downlink, 1 Gbps uplink through 25 km Single Mode Fiber (SMF) and 5.2 m free-space distance. Design and
simulations of WDM-RoF-PON system have been performed in Opti System V14
software tool. Quality factor (Q), bit error rate (BER), fiber reach (km) and
eye pattern performances of proposed system have been investigated. Moreover,
in order to mitigate distortions due to scattering and fiber nonlinearities,
pre/post-distortion compensation fiber (DCF) techniques have been implemented
in simulations and results have been compared with uncompensated case.
Simulation results show that proposed WDM-RoF-PON’s fiber reach is almost 100
km with a BER of 10-9 with pre-post DCF
while uncompensated system’s reach is almost 70 km with the same BER.
Considering all the system performance parameters and their analysis, and
comparing with the other works, it can be concluded that proposed WDM-RoF-PON system
could be a good, flexible solution for wired/wireless communications with
satisfactory performance to meet the high speed, broadband, adaptable and
portable requirements of emerging systems.