Resources Contact Us Home
Sphere decoder and decoding method thereof

Image Number 4 for United States Patent #8117522.

A sphere decoder sets a Euclidean distance between a lattice vector obtained by using an MMSE or ZF estimate and a received signal as an initial radius, further reduces the initial radius, and searches lattices points included inside a hypersphere with the further reduced initial radius. In addition, one lattice vector having a minimum Euclidean distance is output. One dimension is selected to reduce an initial radius, and estimates in other dimensions are kept fixed, excluding the selected dimension. Then candidate lattice points are searched in the selected dimension, excluding a current estimate, such that a minimum Euclidean distance and a lattice point estimate corresponding to the minimum Euclidean distance are obtained. The initial radius is updated by the minimum Euclidean distance, and a final lattice vector is constructed by combining a lattice point estimate corresponding to the initial radius and the lattice point estimates in other dimensions.

  Recently Added Patents
Charged particle cancer therapy beam path control method and apparatus
Porous objects having immobilized encapsulated biomolecules
Ionization device, mass spectrometer including the ionization device, and image generation system including the ionization device
Document layout method
System and method for providing location and access network information support in a network environment
Image processing apparatus and image processing method
Cantilevered probe detector with piezoelectric element
  Randomly Featured Patents
Portable communication system and storage medium storing program therefor capable of separately controlling transmission function
Data holding circuit
Data carrier device with test means for testing the access authorization of a data reading device
Methods for efficient extraction of carotenoids using an esterase
Anti-rotation bracket
Sharpening device for knife blades
V-shaped eyeglass lens with semi-shape aperture
Neon gas discharge lamp providing white light with improved phospher
Fluid pump having magnetic drive
Diarylphosphine-containing compounds, processes of preparing same and uses thereof as tridentate ligands