Low complexity soft output MIMO decoder

A method and processing block for receiving data transmitted in a MIMO system is provided. Data is transmitted as a transmit vector of values from multiple transmitting antennas and received 301 as a receive vector of values at multiple receiving antennas. Candidate vectors are determined based on e...

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Bibliographic Details
Main Authors UMAPATHIREDDY VELLENKI, SRIRAM KANKIPATI, SOMYA SHARMA
Format Patent
LanguageEnglish
Published 18.03.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A method and processing block for receiving data transmitted in a MIMO system is provided. Data is transmitted as a transmit vector of values from multiple transmitting antennas and received 301 as a receive vector of values at multiple receiving antennas. Candidate vectors are determined based on each of a plurality of constellation points of the constellation configuration used in the transmission scheme. A channel matrix is decomposed 302 into a unitary matrix and a triangular matrix, such that a relationship links: (i) a function of the unitary matrix and the receive vector, and (ii) a multiplication of the triangular matrix and the transmit vector. A best candidate vector from the set of candidate vectors is utilized for the computation of soft hits representing the values of the transmit vector.
Bibliography:Application Number: CN201410432260