Resources Contact Us Home
Link adaptation in wireless networks for throughput maximization under retransmissions

Image Number 2 for United States Patent #7463677.

The present invention implements a method and system for dynamically adapting the modulation and coding scheme for radio links in a wireless communications network based on a retransmission environment model in order to maximize throughput and most efficiently allocate bandwidth resources. The present invention encompasses a refined calculus and methodology for deriving the link adaptation thresholds in a retransmission environment using a complex model and analysis of the retransmission environment. The present invention holds particular application for wireless data communications as opposed to real time data services because it is based on a retransmission model applicable primarily for data services. A critical component of this new link adaptation system is a "no transmission" cutoff mode that is selected for SIR below a base threshold value. This new mode prevents system instability and misallocation of bandwidth in a wireless communication system.

  Recently Added Patents
Housing for gas flow indicator
Photomask blank, photomask blank manufacturing method, and photomask manufacturing method
Method of isolating human neuroepithelial precursor cells from human fetal tissue
Power conversion device for electric vehicle
Fire detector
Active matrix substrate, method for manufacturing same, and liquid crystal display apparatus
System and method for computational unification of heterogeneous implicit and explicit processing elements
  Randomly Featured Patents
Fluoroelastomer and process for producing the same
Radio communication apparatus and transmission power control method
Detection of an RFID device by an RF reader unit operating in a reduced power state
FIFO memory with single port memory modules for allowing simultaneous read and write operations
Wire coating composition
Tool, system, method, and plant for promoting growth of seedling, seedling set for planting, and planting method
Graded/stepped silicide process to improve MOS transistor
Method of manufacturing a rotatable magnetic head arrangement
Transparent catheters for endoscopic localization
Remote temperature sensing transmitting and programmable thermostat system