Title :
A low-power implementation of arctangent function for communication applications using FPGA
Author :
Saber, M. ; Jitsumatsu, Yutaka ; Kohda, T.
Author_Institution :
Comput. Sci. & Comm. Dep., Kyushu Univ., Fukuoka, Japan
Abstract :
A low power architecture to compute arctangent function which is suitable for broad-band communication applications is presented. This architecture aims to avoid high power consumption and long latency which are the main disadvantages to other methods based on CORDIC algorithm or conventional LUT methods or polynomial approximation. The architecture is implemented using FPGA, computes arctangent function with 3 clock pulses, and it is power dissipation is lower than Cordic algorithm by 80%.
Keywords :
digital radio; field programmable gate arrays; polynomial approximation; software radio; CORDIC algorithm; FPGA; LUT methods; arctangent function; broadband communication applications; coordinate rotation digital computer algorithm; polynomial approximation; power dissipation; Approximation algorithms; Broadband communication; Clocks; Computer architecture; Delay; Energy consumption; Field programmable gate arrays; Polynomials; Power dissipation; Table lookup;
Conference_Titel :
Signal Design and its Applications in Communications, 2009. IWSDA '09. Fourth International Workshop on
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-4379-6
Electronic_ISBN :
978-1-4244-4380-2
DOI :
10.1109/IWSDA.2009.5346438
