Joint transceiver design for MIMO communications
AssigneeIndustrial Technology Research Institute
InventorsHsin-Pin Ma, Chien-Jen Huang, Jen-Yuan Hsu, Pang-An Ting
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Abstract
A method and apparatus for transmitting data in a MIMO communication system, the method including encoding at least one data symbol by implementing a first precoding scheme, the first preceding scheme including a precoder derived from a first channel state information (CSI). The method further includes selecting at least one antenna that maximizes the first CSI, the at least one antenna being selected by implementing a first selection scheme, and transmitting the at least one data symbol via the at least one antenna.
Claims11
A method for transmitting data in a communication system, comprising:
- encoding at least one data symbol by implementing a first precoding scheme, the first precoding scheme including a precoder derived from a first channel state information (CSI);
- selecting at least one antenna that maximizes the first CSI, the at least one antenna being selected by implementing a first selection scheme, wherein the first selection scheme includes:
- calculating a norm for each column in the first CSI;
- selecting a first column with a largest norm;
- calculating a projection distance for each column in the first CSI with respect to a null space of all previously selected columns;
- selecting a second column with a largest projection distance;
- and
- selecting the at least one antenna corresponding to the second column;
- and
- transmitting the at least one data symbol via the at least one antenna.
A transmitter in a MIMO communication system, comprising:
- a precoder unit (PU) coupled to receive at least one data symbol, and utilizing a first channel state information (CSI) to encode the at least one data symbol by implementing a first precoding scheme;
- and
- an antenna selection unit (ASU) coupled to receive the first CSI, the ASU further configured to select at least one antenna that maximizes the first CSI, the at least one antenna being selected by implementing a first selection scheme, wherein the first selection scheme includes:
- calculating a norm for each column in the first CSI;
- selecting a first column with a largest norm;
- calculating a prosection distance for each column in the first CSI with respect to a null space of all previously selected columns;
- selecting a second column with a largest projection distance;
- and
- selecting the at least one antenna corresponding to the second column.
Dependencies are inferred from the claim text.