| Paper Abstract and Keywords |
| Presentation |
2026-07-16 14:05
A Study on Estimating the Number of Adjacent Interfering Subcarriers for ICI Canceller with Complexity Reduction
Qi Ke, Akira Nakamura, Takashi Komatsu (Kanagawa Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In OFDM mobile environments, Doppler shifts cause inter-carrier interference (ICI), resulting in degradation of reception performance. Although the Zero-Forcing (ZF) method can compensate for ICI, it requires matrix inversion, leading to a high computational complexity. To address this issue, an ICI Canceller with Complexity Reduction that considers only the dominant interference components has been proposed. However, the required number of adjacent interference subcarriers depends on the propagation environment and must therefore be estimated at the receiver. In this study, regression models using the average ICI power and carrier-to-noise ratio (CNR) as input variables were constructed to estimate the required number of adjacent interference subcarriers. Both a linear regression model and a quadratic multiple regression model were investigated. Computer simulation results demonstrate that the proposed method accurately estimates the required number of adjacent interference subcarriers. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
OFDM / ICI / Doppler Shift / Multipath / Regression Model / Adaptive Estimation / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 19, BCT2026-43, pp. 1-4, July 2026. |
| Paper # |
BCT2026-43 |
| Date of Issue |
2026-07-09 (BCT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
BCT IEEE-BT HOKKAIDO |
| Conference Date |
2026-07-16 - 2026-07-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
|
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Broadcast Operating, Transmission & Reception, Program creation, Broadcast master control , etc |
| Paper Information |
| Registration To |
BCT |
| Conference Code |
2026-07-BCT-BT-HOKKAIDO |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Study on Estimating the Number of Adjacent Interfering Subcarriers for ICI Canceller with Complexity Reduction |
| Sub Title (in English) |
|
| Keyword(1) |
OFDM |
| Keyword(2) |
ICI |
| Keyword(3) |
Doppler Shift |
| Keyword(4) |
Multipath |
| Keyword(5) |
Regression Model |
| Keyword(6) |
Adaptive Estimation |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Qi Ke |
| 1st Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
| 2nd Author's Name |
Akira Nakamura |
| 2nd Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
| 3rd Author's Name |
Takashi Komatsu |
| 3rd Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2026-07-16 14:05:00 |
| Presentation Time |
20 minutes |
| Registration for |
BCT |
| Paper # |
BCT2026-43 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.19 |
| Page |
pp.1-4 |
| #Pages |
4 |
| Date of Issue |
2026-07-09 (BCT) |