DocumentCode :
3520583
Title :
DSP and ADC/DAC Projections for WDM-OFDMA-PON
Author :
Hernandez, M. ; Alvizu, Rodolfo ; Dassy, Christian ; Huerta, Milagros
Author_Institution :
Dept. of Electron. & Circuits, Simon Bolivar Univ., Caracas, Venezuela
fYear :
2013
fDate :
24-26 Nov. 2013
Firstpage :
1
Lastpage :
6
Abstract :
Wavelength Division Multiplexing- Orthogonal Frequency Division Multiple Access-based Passive Optical Network (WDM-OFDMA-PON) is accepted as one of the most suitable architectures to tackle the requirements for Next Generation Optical Access Networks (NG-OAN). The main technologies for the development of this architecture are the Digital Signal Processing (DSP) and Analog-To-Digital and Digital-To-Analog converters (ADC/DAC). Current DSP devices´ processing capacity is at least one order of magnitude bellow the required for the implementation of WDM-OFDMA-PON, and the bandwidth of ADC/DAC is also a limitative factor. Additionally, due to the access network´s massiveness, the DSP´s and ADC/DAC energy consumption has become a major concern. In order to describe how long it will take for the DSP´s and ADC/DAC devices to cope the requirements for WDM-OFDMA-PON, and how much energy they will consume, in this paper the projections of DSP´s and ADC/DAC performance and energy consumption were developed, considering different rates of annual improvement of the technology. Based on our projections, we have demonstrated that the required processing capacity for DSP will be achieved within two to five years from now, and such device will consume approximately twice the amount of power of current processors if the annual rates of improvement of capacity and energy efficiency are maintained.
Keywords :
OFDM modulation; analogue-digital conversion; digital signal processing chips; digital-analogue conversion; frequency division multiple access; passive optical networks; power consumption; wavelength division multiplexing; ADC/DAC energy consumption; DSP; NG-OAN; WDM-OFDMA-PON; analog-to-digital converter; digital signal processing; digital-to-analog converter; energy efficiency; next generation optical access networks; orthogonal frequency division multiple access; passive optical network; wavelength division multiplexing; Digital signal processing; Energy consumption; OFDM; Optical network units; Passive optical networks; Power demand; Wavelength division multiplexing; ADC; DAC; DSP; Next Generation Optical Access Networks; WDM-OFDMA-PON; energy efficiency; power consumption; processing capacity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications (LATINCOM), 2013 IEEE Latin-America Conference on
Conference_Location :
Santiago
Print_ISBN :
978-1-4799-1146-2
Type :
conf
DOI :
10.1109/LatinCom.2013.6759830
Filename :
6759830
Link To Document :
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