Open AccessNovel low resolution ADC-DSP optimization based on non-uniform quantization and MLSE for data centers interconnects
Author(s) -
Yaron Yoffe,
Dan Sadot
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.005346
Subject(s) - quantization (signal processing) , converters , bottleneck , computer science , digital signal processing , electronic engineering , power (physics) , computer hardware , algorithm , physics , embedded system , engineering , quantum mechanics
A new generation of combined ADC-DSP scheme is proposed. It is based on a novel non-uniform quantization method, optimized for MLSE based receivers. This inclusive optimization enables the use of extremely low-resolution analog-to-digital-converters devices, which form a major bottleneck in high speed optical communications receivers' architecture. Through Monte-simulation it is demonstrated that the proposed method leads to a significant SNR gain over conventional designs, and may provide low cost and low power consumption digital implementation solution for datacenter interconnects.