Title :
Transmitter equalization for multipath interference cancellation in impulse radio ultra-wideband(IR-UWB) transceivers
Author :
Hu, Changhui ; Redfield, Steven ; Liu, Huaping ; Khanna, Rahul ; Nejedlo, Jay ; Chiang, Patrick
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA
Abstract :
This paper presents a novel CMOS 2-tap equalizer for combating multipath interference in impulse radio, ultra-wideband (IR-UWB) transceiver systems. The equalizer is composed of pulse width control, pulse tap delay control, pulse sign inversion, and current mode logic (CML) summation for data transmission. SpectreRF post-layout simulation in a 90-nm CMOS technology shows that the transceiver operates up to a 2 Gbps data rate by removing the 1st and 2nd multipath reflections, illustrating significant signal-to-noise (SNR) improvement when compared with a conventional transmitter.
Keywords :
CMOS integrated circuits; interference suppression; radio transmitters; transceivers; ultra wideband communication; CMOS 2-tap equalizer; CMOS technology; current mode logic; impulse radio transceivers; multipath interference cancellation; pulse sign inversion; pulse tap delay control; pulse width control; signal-to-noise improvement; transmitter equalization; ultra-wideband transceivers; CMOS logic circuits; CMOS technology; Data communication; Delay; Equalizers; Interference cancellation; Radio transmitters; Space vector pulse width modulation; Transceivers; Ultra wideband technology;
Conference_Titel :
VLSI Design, Automation and Test, 2009. VLSI-DAT '09. International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4244-2781-9
Electronic_ISBN :
978-1-4244-2782-6
DOI :
10.1109/VDAT.2009.5158156
