Title :
High-performance FPGA implementations of volterra DFEs for optical fiber systems
Author :
Emeretlis, A. ; Theodoridis, G. ; Glentis, G.-O.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Patras, Patras, Greece
Abstract :
Low-complexity Volterra Decision Feedback Equalizers (VDFEs) for optical fiber links are proposed. By properly discarding large blocks of coefficients in the feedforward and feedback sections of the equalizer, a significant complexity reduction is achieved without affecting its efficiency. Moreover, suitable architectures and high-performance FPGA implementations are provided. It is demonstrated that the efficiency of the proposed VDFEs in terms of BER is similar to the counterpart full-size VDFEs for links of the same length, while, they demand 50% less arithmetic resources. Also, the proposed DFEs meet the desired 10 Gb/s rate and in certain cases achieve rates of 17 Gb/s and 25 Gb/s.
Keywords :
equalisers; field programmable gate arrays; optical links; FPGA; Volterra decision feedback equalizers; bit rate 10 Gbit/s; bit rate 17 Gbit/s; bit rate 25 Gbit/s; field programmable gate arrays; optical fiber links; optical fiber systems; Equalizers; Field programmable gate arrays; Finite impulse response filters; Lead; Multiplexing; Optical fiber communication; Optical filters; Decision Feedback Equalizer; FPGA; Fiber Optical Communication Links; Volterra Filters;
Conference_Titel :
ReConFigurable Computing and FPGAs (ReConFig), 2014 International Conference on
Conference_Location :
Cancun
Print_ISBN :
978-1-4799-5943-3
DOI :
10.1109/ReConFig.2014.7032528
