Patent · US Active

System and method for low complexity sphere decoding for spatial multiplexing MIMO

US8270520B2 · kind B2 · utility

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Key dates

Filing dateFeb 2, 2009
Grant dateSep 18, 2012
Priority date
Expiry dateJun 14, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2025/03624
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

In this application, an algorithm for decoding multiple input-multiple output (MIMO) transmission for communication systems is provided; the algorithm combines sphere decoding (SD) and zero forcing (ZF) techniques to provide near optimal low complexity and high performance constant time modified sphere decoding algorithm; the algorithm was designed especially for large number of transmit antennas, that allows efficient implementation in hardware—this is done by limiting the number of overall SD iterations; moreover, matrices with high condition number are more likely to undergo SD.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.