| Authors |
F. Ojika, T. Yamazato, M. Saito, H. Omote, A. Sato, S. Kimura, S. Tanaka, H. Lin |
| Title |
Reduction of Noise Power by Iterative Short-Term Power Delay Profile Estimation |
| Authority |
IEEE Vehicular Technology Conference (VTC) |
| Summary |
This paper proposes a new estimation method of
short-term power delay profile to reduce the noise power included
in the short-term power delay profile. By reducing the noise, the
multipath signal components buried in the noise can be utilized,
thereby reducing the transmitted signal power and extending the
cell range of a mobile communications. The proposed method
iteratively creates the short-term power delay profile while
lowering the threshold which distinguishes between signal and
noise. The purpose of the threshold is to suppress the noise in
each profile and to extract the effective multipath components.
Furthermore, the method aligns and averages the phase of each
instantaneous delay profile. In this way, only the noise component
can be reduced while maintaining a high multipath power. As
a result, we successfully reduced the noise power by 15 dB
by analyzing the raw data of 200 instantaneous delay profiles
measured in the 50 MHz bands at 3.35 GHz. Furthermore, the
delay spread increased from 0.66 μs to 1.47 μs. |
| 年月 |
2023年6月 |
| DOI/Handle |
DOI:10.1109/VTC2023-Spring57618.2023.10201065
|
| 開催場所 |
Florence, Italy |
| 研究テーマ |
4G/5G/次世代移動体通信システム
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
