JP5220816B2 - 伝送方式 - Google Patents
伝送方式 Download PDFInfo
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- JP5220816B2 JP5220816B2 JP2010183998A JP2010183998A JP5220816B2 JP 5220816 B2 JP5220816 B2 JP 5220816B2 JP 2010183998 A JP2010183998 A JP 2010183998A JP 2010183998 A JP2010183998 A JP 2010183998A JP 5220816 B2 JP5220816 B2 JP 5220816B2
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- rotation angle
- modulation
- rotation
- orthogonal code
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Description
本発明の回転直交符号を用いて信号を拡散する伝送方式の送受信ブロックダイアグラムの一例を図1に示す。図1において、送信機1から受信機3へ情報ビットを送信する際には、まず、送信機1の符号化器11が情報ビットを入力して符号化を行い、続いて符号化後の情報ビットを変調器12で変調を行い、変調シンボルを生成する。
2 … 伝送路
3 … 受信機
11 … 符号化器
12 … 変調器
13 … 拡散器
31 … 逆拡散器
32 … 復調器
33 … 復号器
Claims (2)
- 回転直交符号を用いて信号を拡散する伝送方式であって、誤り訂正符号の符号化率が2/3の16QAM変調において、OFDMと同一の信号点となる回転角を0度としたときに、7から45度の間、もしくは、−7から−45度の間の回転角を持つ回転直交符号を用いることを特徴とする伝送方式。
- 回転直交符号を用いて信号を拡散する伝送方式であって、誤り訂正符号の符号化率が1/2、2/3、又は、3/4のQPSK変調において、OFDMと同一の信号点となる回転角を0度としたときに、17から45度の間、もしくは、−17から−45度の間の回転角を持つ回転直交符号を用いることを特徴とする伝送方式。
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JP2010183998A JP5220816B2 (ja) | 2010-08-19 | 2010-08-19 | 伝送方式 |
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JP2010183998A JP5220816B2 (ja) | 2010-08-19 | 2010-08-19 | 伝送方式 |
Related Parent Applications (1)
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JP2005314152A Division JP4611864B2 (ja) | 2005-10-28 | 2005-10-28 | 伝送方式 |
Publications (2)
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JP2010268522A JP2010268522A (ja) | 2010-11-25 |
JP5220816B2 true JP5220816B2 (ja) | 2013-06-26 |
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JP2010183998A Expired - Fee Related JP5220816B2 (ja) | 2010-08-19 | 2010-08-19 | 伝送方式 |
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JP (1) | JP5220816B2 (ja) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007037320A1 (ja) * | 2005-09-28 | 2007-04-05 | Kddi Corporation | マルチキャリア符号分割多重伝送システム及び方法、受信装置 |
JP4611864B2 (ja) * | 2005-10-28 | 2011-01-12 | Kddi株式会社 | 伝送方式 |
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2010
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JP2010268522A (ja) | 2010-11-25 |
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