DSP power consumption and capacity projections for WDM-OFDMA-PON
Fecha
2013-10Autor
Hernández, Maybemar
Alvizu, Rodolfo
Dassy, Christian
Huerta, Mónica
Metadatos
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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). Digital Signal Processing (DSP) is the key technology for the
development of this architecture. However, current DSP devices’ processing capacity is at least one order of magnitude
bellow the required for the implementation of WDM-OFDMA-PON. Additionally, due to the access network’s
massiveness, the DSP’s energy consumption has become a major concern. In order to describe how long it will take for
the DSP’s devices to cope the requirements for WDM-OFDMA-PON, and how much energy they will consume, in this
paper the projections of DSP’s capacity and energy consumption were developed, considering different rates of annual
improvement of the technology. Based on our projections, we have demonstrated that the required capacity 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.