Paper Info
Title
CORDIC-augmented sandbridge processor for channel equalization
Abstract
In this paper we analyze an architectural extension for a Sandbridge processor which encompasses a CORDIC functional unit and the associated instructions. Specifically, the first instruction is CFG_CORDIC that configure the CORDIC unit in one of the rotation and vectoring modes for circular, linear, and hyperbolic coordinate systems. The second instruction is RUN_CORDIC that launches CORDIC operations into execution. As case study, we consider channel estimation and correction of the Orthogonal Frequency Division Multiplexing (OFDM) demodulation. In particular, we propose a scheme to implement OFDM channel correction within the extended instruction set. Preliminary results indicate a performance improvement over the base instruction set architecture of more than 80% for doing channel correction, which translates to an improvement of 50% for the entire channel estimation and correction task.
Year
DOI
Venue
2005
10.1007/11512622_17
SAMOS
Keywords
Field
DocType
channel correction,associated instruction,ofdm channel correction,cordic operation,correction task,cordic functional unit,extended instruction set,entire channel estimation,channel equalization,base instruction set architecture,channel estimation,cordic-augmented sandbridge processor,functional unit,instruction set architecture,coordinate system
Coordinate system,Demodulation,Equalization (audio),Computer science,Instruction set,Communication channel,CORDIC,Computer hardware,Orthogonal frequency-division multiplexing,Embedded system,Distributed computing,Performance improvement
Conference
Volume
ISSN
ISBN
3553
0302-9743
3-540-26969-X
Citations 
PageRank 
References 
1
0.37
5
Authors
6
Name
Order
Citations
PageRank
Mihai Sima19516.66
John Glossner214122.12
Daniel Iancu3629.90
Hua Ye451.20
Andrei Iancu5303.83
A. Joseph Hoane610.37