Resources Contact Us Home
Apparatus and method for signal transmission/reception in a communication system

Image Number 2 for United States Patent #8117516.

A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.

  Recently Added Patents
Image processing apparatus, image registering method, program causing computer to execute image registering method, and recording medium in which program is recorded
Optical disc drive having a tray for loading a disc using supporting portions
Low-coupling oxide media (LCOM)
Display unit and display method
Systems and methods for automobile accident claims initiation
Flat display panel and method for forming the same
Method of processing data and display apparatus for performing the method
  Randomly Featured Patents
Process to improve isocyanate yield upon pyrolysis of a polyfunctional urethane which has been extracted with a combination of hydrochloric acid and alcohol
Sparger for fermentation and tissue culturing vessels
Chain tensioner
Variety of calla lily named `Hawaii`
System and method for detecting a document trailing edge exiting feeder
Self-bonding room temperature vulcanizable silicone compositions
Rotor of rotary electric machine and method of manufacturing the rotor
Intake control device for internal combustion engine
Golf putter head
Method of welding and product obtained therefrom