|
For Full-Text PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
|
Double Directional Ultra Wideband Channel Characterization in a Line-of-Sight Home Environment
Katsuyuki HANEDA Jun-ichi TAKADA Takehiko KOBAYASHI
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E88-A
No.9
pp.2264-2271 Publication Date: 2005/09/01 Online ISSN:
DOI: 10.1093/ietfec/e88-a.9.2264 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Ultra Wideband Systems) Category: Propagation Keyword: ultra wideband, UWB channel models, SAGE algorithm, spatio-temporal analysis,
Full Text: PDF(1.3MB)>>
Summary:
This paper introduces the concept of measuring double directional channels in ultra wideband (UWB) systems. Antenna-independent channel data were derived by doing the measurements in a wooden Japanese house. The data were useful for investigating the impact of UWB antennas and analyzing waveform distortion. Up to 100 ray paths were extracted using the SAGE algorithm and they were regarded as being dominant. The paths were then identified in a real environment, in which clusterization analyses were done using the directional information on both sides of the radio link. Propagating power was found to be concentrated around the specular directions of reflection and diffraction. This led to the observation that the spatio-temporal characteristics of extracted paths greatly reflected the structure and size of the environment. The power in the clusters indicated that the estimated 100 paths contained 73% of the total received power, while the rest existed as diffuse scattering, i.e., the accumulation of weaker paths. The practical limits of path extraction with SAGE were also discussed. Finally, we derived the scattering loss and intra-cluster properties for each reflection order, which were crucial for channel reconstrucion based on the deterministic approach.
|
open access publishing via
|
|
|
|
|
|
|
|