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Characterization of Broadband Mobile Communication Channel in 200MHz Band Based on Saleh-Valenzuela Model
Hiroki OHARA Hirokazu SAWADA Masayuki OODO Fumihide KOJIMA Hiroshi HARADA Kentaro SAITO Jun-ichi TAKADA
IEICE TRANSACTIONS on Communications
Publication Date: 2018/11/01
Online ISSN: 1745-1345
Type of Manuscript: PAPER
Category: Antennas and Propagation
VHF propagation, mobile communication, public broadband mobile communication (PBB) system, impulse response, channel model,
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Digitization of analog terrestrial TV broadcasting has recently been accelerated in many countries, and the effective utilization of vacant frequencies has also been investigated for new systems in each country. In Japan, a portion of vacant frequencies in the VHF-high band was allocated to the public broadband mobile communication (PBB) system. To evaluate the current PBB system and develop future broadband communication systems in this band, it is important to analyze the propagation channel more accurately. In this study, we characterize the propagation channel for 200MHz band broadband mobile communication systems, using measured channel impulse responses (CIRs). In the characterization process, the Saleh-Valenzuela (S-V) model is utilized to extract channel model parameters statistically. When evaluating the fluctuation of path power gain, we also propose to model the fluctuation of path power gain using the generalized extreme value distribution instead of the conventional log-normal distribution. The extracted CIR model parameters are validated by cumulative distribution function of root-means-square delay spread and maximum excess delay, comparing simulation result to measurement result. From the extracted CIR model parameters, we clarified the characteristics of 200MHz band broadband mobile communication systems in non-line-of-sight environments based on S-V model with the proposed channel model.