Title :
A hardware implementation solution for DC-OFDM-based UWB PHY
Author :
Ye, Fan ; Ren, Junyan
Author_Institution :
State-Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
This paper presents a dual-carrier orthogonal frequency-division multiplexing (DC-OFDM) based ultrawideband (UWB) PHY (RF front-end plus baseband processor) which is compliant with C-WPAN UWB standard. The proposed UWB PHY supports data rates from 53.2 to 480 Mbps, and demonstrates a packet-error-rate (PER) of 8% under multi-path fading, including CM1, CM2, and CM4 channel modes, additive white Gaussian noise (AWGN), and up to 50 ppm carrier frequency offset (CFO) and sampling frequency offset (SFO). It consists of a radio-frequency (RF) transceiver operating in the frequency band group 2 (6204-8844MHz), a 6-bit folding and interpolating analog-to-digital convertors (ADC), a 8-bit current-steering digital-to-analog convertor (DAC) and a digital baseband processor. The front-end circuits have been fabricated using 0.13μm CMOS Technology. The digital baseband processor has been implemented on a Xilinx Vertex-5 FPGA platform.
Keywords :
AWGN channels; CMOS analogue integrated circuits; OFDM modulation; analogue-digital conversion; digital-analogue conversion; fading channels; field programmable gate arrays; transceivers; ultra wideband communication; AWGN; C-WPAN UWB standard; CFO; CMOS technology; DC-OFDM-based UWB PHY; PER; RF front-end-plus-baseband processor; SFO; Xilinx Vertex-5 FPGA platform; additive white Gaussian noise; analog-to-digital convertors; bit rate 53.2 Mbit/s to 480 Mbit/s; carrier frequency offset; current-steering digital-to-analog convertor; dual-carrier orthogonal frequency division multiplexing; frequency 6204 MHz to 8844 MHz; multipath fading; packet error rate; radiofrequency transceiver; sampling frequency offset; ultrawideband PHY; DC-OFDM; PHY; UWB; transceiver;
Conference_Titel :
Ultra-Wideband (ICUWB), 2010 IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-5305-4
Electronic_ISBN :
978-1-4244-5306-1
DOI :
10.1109/ICUWB.2010.5616756