WiMAX Improvements in Green Radio Communications Utilizing Radio-over- Fiber
Essay aus dem Jahr 2012 im Fachbereich Ingenieurwissenschaften - Nachrichtentechnik / Kommunikationstechnik, Middlesex University in London, Sprache: Deutsch, Abstract: WiMAX as an alternative technology of the wireless broadband internet service provider technique and Radio over Fiber (RoF) as a technique that employs fiber optic communication technologies to transmit radio-frequency (RF) modulated standard signals for today's wireless and mobile applications. Green radio communication means that the power consumption of the communication systems could be minimized by removing some of the electrical active components and equipment by replacing the passive photonic devices and centralizing the signal processing. We have proposed and demonstrated the improvement of WiMAX power efficiency in green communication by utilizing a radio over fiber system. The simulation has been presented for a WiMAX signal transmitted through single mode fiber optic for 80Km and 5Km on the air. The demonstration results show high Signal-to-Noise-Ratio (SNR), extensive power reduction of up to 90% in WiMAX-RoF and a high power loss of WiMAX signal deployed through air.
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3.5GHz carrier 64QAM modulation/WiMAX Access Units RAU Bandwidth at 3.5GHz base station broadband wireless access centralizing the signal communication systems Communications Utilizing Radio-Over Current and Modulation dBm/km diode EDFA electrical active components electrical signal fiber length Fiber RoF Figure frequency Green Radio Communications GRIN Verlag IEEE internet service provider ith(t Matlab-Simulink Mazin Al Noor Modulation peak current NLOS OFDM signal Optical carrier power optical fiber optical power Optical Signal parameter Bias Current passive photonic devices power and SNR power loss Radio Access Units radio communication means Radio Communications Utilizing Radio over Fiber RoF system RoF technology Scatter for 64QAM Semiconductor lasers show the WiMAX signal power attenuation simulation single mode fiber SNR in WiMAX transceiver transmission of WiMAX transmit WiMAX signal transmitting the WiMAX WiMAX Improvements WiMAX power WiMAX receiver antenna WiMAX system WiMAX technologies WiMAX transmitted signal WiMAX transmitter wireless broadband internet WWW.GRIN.com