Switching for a MIMO-OFDM based flexible rate intra-data center network
AssigneeNEC Laboratories America, Inc.
InventorsPhilip Nan Ji, Ting Wang
Life of this patent
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Abstract
A communication system enabling a switching procedure for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) based flexible rate intra-data center network DCN, includes a MIMO OFDM DCN with optical burst switching OBS capability, an optical burst switching OBS procedure for influencing the MIMO OFDM DCN, and a centralized control configuration coupled to the MIMO OFDM DCN and enabling a software defined network SDN configuration in the communication system.
Claims20
A communication system enabling a switching procedure for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) based flexible rate intra-data center network DCN, the system comprising:
- a MIMO OFDM DCN with optical burst switching (OBS) capability;
- a modified OBS control means for burst assembling, wavelength division multiplexing WDM OFDM signal generating, and MIMO OFDM DCN controlling;
- a software defined network (SDN) architecture;
- wherein a centralized controller coupled to the MIMO OFDM DCN, and the MIMO OFDM DCN provides optical burst handling functions to allow efficient sub-wavelength level switching of packets, and add the communication channels with the centralized controller, the modified OBS means providing burst assembling and WDM OFDM signal generation that are operable concurrently not on the same signal;
- and the software defined network SDN architecture determines if upgrade is available, if the WDM OFDM generation hardware is modified or upgraded in the future, the control software does not need to be changed and the same control commands can be used through the open interface and network operator changes to control by the SDN capability or apply new features, only new software need be applied without hardware modification.
A method in a communication system for enabling a switching procedure for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) based flexible rate intra-data center network DCN, the method comprising:
- providing optical burst switching (OBS) capability with a MIMO OFDM DCN;
- a modified OBS control steps for burst assembling, wavelength division multiplexing WDM OFDM signal generating, and MIMO OFDM DCN controlling;
- and
- enabling a software defined network SDN configuration in the communication system with a centralized control configuration coupled to the MIMO OFDM DCN;
- wherein the MIMO OFDM DCN provides optical burst handling functions to allow efficient sub-wavelength level switching of packets, and add the communication channels with the centralized controller, the modified OBS steps providing burst assembling and WDM OFDM signal generation that are operable concurrently not on the same signal;
- and the software defined network SDN configuration determines if upgrade is available, if the WDM OFDM generation hardware is modified or upgraded in the future, the control software does not need to be changed and the same control commands can be used through the open interface and network operator changes to control by the SDN capability or apply new features, only new software need be applied without hardware modification.
Dependencies are inferred from the claim text.