High speed data transmission over electrical backplane channels

The progressive growth of network traffic in the data center is demanding ever faster chip-to-chip electrical interconnects in network switches and core routers. However, due to the frequency-dependent channel loss, bandwidth limitation in electrical interconnections becomes a main bottleneck for increasing the serial data rate over electrical backplanes. Today, data rates in industrial core routers are typically below 10 Gb/s per lane, which restrict the total capacities of data transmission systems. In this research, we investigate the feasibility for achieving a serial data rate beyond 40 Gb/s in a power-efficient solution, by applying an optimal combination of more efficient modulation techniques, improved backplane PCB materials and backplane connectors, together with faster transmitter / receiver modules. The measured bit error rate shows an error-free, serial data transmission beyond 40 Gb/s across an electrical backplane.

Jaar van publicatie:2014