Conference paper Open Access

Efficient Time-Domain DBP using Random Step-Size and Multi-Band Quantization

Celestino Martins; Luca Bertignono; Antonino Nespola; Andrea Carena; Fernando Guiomar; Armando Pinto

Employing step-size randomization and multi-band quantization, we propose a reduced complexity time-domain (TD) digital backpropagation (DBP) and experimentally demonstrate penalty-free operation at an average number of ~4 bits per FIR coefficient.

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