Title :
Characterizing performance of multiband UWB systems using Poisson cluster arriving fading paths
Author :
Siriwongpairat, W. Pam ; Su, Weifeng ; Liu, K. J Ray
Author_Institution :
Dept. of ECE, Maryland Univ., College Park, MD, USA
Abstract :
This paper provides a novel performance formulation for UWB systems that successfully captures the unique multipath-rich property and random-clustering phenomenon of UWB channels. Using the Saleh-Valenzuela model, we are able to characterize the pairwise error probability (PEP) performance for UWB systems employing multiband OFDM based on cluster arrival rate, ray arrival rate within a cluster, and cluster and ray decay factors. In addition, a PEP approximation technique is established, which allows us to obtain a closed-form PEP formulation that provides insightful understanding of the effect of channel characteristics on the performances of UWB systems. Finally, simulation results are provided to support the theoretical analysis.
Keywords :
OFDM modulation; approximation theory; error statistics; fading channels; multipath channels; radiowave propagation; stochastic processes; ultra wideband communication; PEP performance; Poisson cluster; Saleh-Valenzuela model; UWB system; approximation technique; channel characteristic; fading path; multiband OFDM; multipath-rich property; pairwise error probability; random-clustering phenomenon; Analytical models; Bandwidth; Educational institutions; Error probability; Fading; Narrowband; OFDM; Performance analysis; Signal resolution; Ultra wideband technology;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2005 IEEE 6th Workshop on
Print_ISBN :
0-7803-8867-4
DOI :
10.1109/SPAWC.2005.1505909
