Title :
Performance superiority of IR-UWB over DS-UWB with finite-resolution Matched-Filter receivers
Author :
Xiao, Zhenyu ; Jin, Depeng ; Su, Li ; Zeng, Lieguang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper, we investigate performance comparison between Impulse-Radio Ultra-wideband (IR-UWB) and Direct Sequence UWB (DS-UWB) in realistic systems, where Matched-Filter (MF) receivers have finite quantization resolution. Bit-Error-Rate (BER) performance of a high-resolution MF receiver for IR-UWB and DS-UWB is analyzed and compared under typical UWB dispersive channels. Also, performance of a 1-bit MF receiver for IR-UWB and DS-UWB is analyzed and compared under Additive White Gaussian Noise (AWGN) channel. The analysis results provide insight into general cases that B-bit MF receivers are used. Simulations of B-bit MF receivers are performed under both AWGN channel and typical UWB dispersive channel. The results show IR-UWB outperforms DS-UWB with finite-resolution MF receivers, and the performance superiority is more significant as quantization resolution is lower.
Keywords :
AWGN channels; error statistics; quantisation (signal); radio receivers; ultra wideband communication; AWGN channel; BER; DS-UWB; IR-UWB; additive white Gaussian noise channel; bit error rate; direct sequence ultra wideband communication; finite quantization resolution; finite resolution matched filter receivers; impulse radio ultra wideband communication; AWGN; AWGN channels; Bit error rate; Dispersion; Quantization; Receivers; Simulation; DS-UWB; Finite-Resolution; IR-UWB; Matched Filter; Quantization; UWB;
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.2010.5614491
