Modulation Scheme for Network-coded Bi-directional Relaying over an Asymmetric Channel
نویسندگان
چکیده
منابع مشابه
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あらまし 伝搬損失およびシャドウィング損失の影響を低減しつつ直接通信と等しい最大スループットを実現 する手段として,アナログネットワーク符号化(ANC)を用いる双方向中継通信が注目されている.我々はこれま で,ANC を用いるシングルキャリア(SC)双方向中継通信を対象に検討を行なってきた.しかしながら,ANC で は,重ね合わせられて受信された上下リンクの信号をそのまま増幅・中継するため,上下リンクで等しい伝送方式 を用いる必要はない.したがって上下リンクそれぞれに適した伝送方式を用いることにより,さらなるスループッ トの改善が期待される.そこで本稿では,上りリンクでは SC 伝送を,下りリンクでは直交周波数分割多重(OFDM) 伝送を用いて ANC 双方向中継通信を行う SC/OFDM ハイブリッド ANC 双方向中継通信について検討している.ま た端末および基地局送信機では,上...
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ژورنال
عنوان ژورنال: The Journal of Korea Information and Communications Society
سال: 2012
ISSN: 1226-4717
DOI: 10.7840/kics.2012.37b.2.97