講演名 2013-02-22
An Iterative ICI Cancellation for OFDM Mobile DTV Receiver
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抄録(和)
抄録(英) In mobile environment, the performance of OFDM mobile receivers is degraded severely because of Inter-Camer-Interference (ICI) caused by Doppler Spread Therefore, ICI canceller is an important task for the OFDM mobile receivers [1] and [2] proposed an efficient method to reduce ICI The main idea of this method is to linearly approximate time varying channel within one OFDM symbol Then a large ICI matrix equation is given However, in [1], [2], the estimated values of the channel transfer function-the diagonal of the ICI matrix is corrupted by ICI Consequently, the equalized signal still is distorted In this paper, we proposed an iterative method to improve performance of the original method We implemented Jacobi iteration method with low complexity to solve the large ICI matrix equation Next, at second iteration of Jacobi method, we improve the diagonal by removing ICI power from pilot symbols and re-estimating the channel transfer function Simulation results for ISDB-T mode 3 demonstrated that our method could double performance of the original method under TU-6 channel and Doppler Spread The improvement is better for two paths and one path Doppler channel.
キーワード(和)
キーワード(英) Orthogonal frequency-division multiplexing (OFDM) / Jacobi Iteration / Inter-Camer Interference (ICI)
資料番号 SAT2012-60
発行日

研究会情報
研究会 SAT
開催期間 2013/2/14(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Satellite Telecommunications (SAT)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) An Iterative ICI Cancellation for OFDM Mobile DTV Receiver
サブタイトル(和)
キーワード(1)(和/英) / Orthogonal frequency-division multiplexing (OFDM)
第 1 著者 氏名(和/英) / Hai Minh TRAN
第 1 著者 所属(和/英)
Graduate School of Engineenng and Science, University of the Ryukyus
発表年月日 2013-02-22
資料番号 SAT2012-60
巻番号(vol) vol.112
号番号(no) 440
ページ範囲 pp.-
ページ数 6
発行日