Title :
PN code generator with low delay-power product for spread-spectrum communication systems
Author :
Chren, William A., Jr.
Author_Institution :
STMicroelectronics Inc., Longmont, CO, USA
fDate :
12/1/1999 12:00:00 AM
Abstract :
We illustrate the low-power advantages of the One-Hot Residue Number System by presenting a pseudonoise (PN) code generator for battery-powered spread-spectrum communication systems. It exhibits a significantly reduced delay-power product below an equivalent binary number system implementation. This advantage is obtained because the number system allows the decomposition into small serially enabled units of the large linear-feedback shift register required to generate the PN code. Additionally, it allows fast and efficient computation of sums and products. An example frequency-hopped spread-spectrum application of the generator is briefly presented using a previously designed frequency synthesizer
Keywords :
frequency hop communication; low-power electronics; pseudonoise codes; residue number systems; spread spectrum communication; delay-power product; frequency hopping; frequency synthesizer; linear feedback shift register; low-power system; one-hot residue number system; pseudonoise code generator; spread spectrum communication system; Arithmetic; Circuits; Delay; Frequency synthesizers; Helium; Power dissipation; Random number generation; Shift registers; Spread spectrum communication; System testing;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
