Patent ID: 9059888
Filing Date: 2015-06-16
Classification: H04J,H04L,H04Q

Abstract:
1. A MIMO-OFDM based flexible rate intra-data center network comprising: transmitter top-of-the-rack TOR switches respectively coupled to transmitter servers to receive inter-rack traffics from transmitter racks for switching with Cyclic Arrayed Waveguide Grating (CAWG), electrical OFDM and parallel signal detection, wherein each transmitter output at the ToR is sent to multiple destinations at the same time, and each receiver receives signals from multiple source at the same time using only a single detector; transmitters for converting said inter-rack traffics to respective wavelength division multiplexing WDM optical signals containing K wavelengths with K being a number of receiver racks that said optical signals from said transmitter racks are to travel to; an cyclic interleaver for receiving and routing said optical signals from said transmitter racks to output ports in a cyclic manner; photodetectors for converting respective routed said optical signals from said cyclic interleaver into respective electrical signals; and demodulators for demodulating OFDM formats from respective said converted optical signals containing signals for respective receiver racks through respective receiver TOR switches.