Title :
Low-Power Bus Transform Coding for Multilevel Signals
Author :
Rokhani, Fakhrul Zaman ; Sobelman, Gerald E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN
Abstract :
This paper proposed a novel extension of bus-invert coding to handle 4-level pulse amplitude modulated (PAM-4) signals. A generalized mathematical model for energy consumption and energy dissipation for PAM-4 signals is presented and a family of coding schemes are developed that can reduce the average power consumption and dissipation by up to 54% compared to un-coded PAM-4 buses. This technique is attractive for high-speed data transmission systems that employ PAM-4 signals on general high capacitance buses such as global wires, off-chip buses, I/O and backplanes
Keywords :
data communication; pulse amplitude modulation; transform coding; PAM-4; bus transform coding; bus-invert coding; multilevel signals; power consumption reduction; pulse amplitude modulated signals; Amplitude modulation; Capacitance; Data communication; Energy consumption; Energy dissipation; Mathematical model; Modulation coding; Pulse modulation; Transform coding; Wires;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342395
