A reduced-complexity near-ML detection for broadband single-carrier transmission
نویسندگان
چکیده
منابع مشابه
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あらまし シングルキャリア(SC)伝送にQR分解とMアルゴリズムを適用した演算量削減型最尤ブロック信号検 出法(QRM-MLBD)を用いれば,ビット誤り率(BER)の理論的下界である整合フィルタ(MF)限界に近い特性を達成で きる.しかしながら,その演算量は従来の最小平均二乗誤差規範に基づく周波数領域等化(MMSE-FDE)に比べはる かに大きい.筆者らは最近,MMSE-FDE による事前判定を利用して MLD の木構造の簡略化を行う 2 ステップ QRM-MLBDを提案した.本稿では,FDE後の軟判定値と残留符号間干渉(ISI)+雑音成分の分布に基づく 2ステップ QRM-MLBD の演算量を更に削減するため,探索が不要であるステージのシンボル候補を減算することによる QR 分解の演算量の削減,そしてMアルゴリズムにおける生き残りパス数削減のための事前判定結果に基づく信号検出 順序...
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Maximum likelihood block signal detection employing QR decomposition and M-algorithm (QRM-MLBD) can significantly improve the bit error rate (BER) performance of single-carrier (SC) transmission while significantly reducing the computational complexity compared to maximum likelihood detection (MLD). However, its computational complexity is still high. In this paper, we propose the computational...
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ژورنال
عنوان ژورنال: IEICE Communications Express
سال: 2015
ISSN: 2187-0136
DOI: 10.1587/comex.2015xbl0140