JP5242780B2 - Qamコンステレーションマッピング前に適用されるldpc符号化ビットのビット置換 - Google Patents
Qamコンステレーションマッピング前に適用されるldpc符号化ビットのビット置換 Download PDFInfo
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- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
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- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
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- H—ELECTRICITY
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- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/251—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with block coding
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2703—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques the interleaver involving at least two directions
- H03M13/2707—Simple row-column interleaver, i.e. pure block interleaving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
- H03M13/356—Unequal error protection [UEP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1148—Structural properties of the code parity-check or generator matrix
- H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
- H03M13/1165—QC-LDPC codes as defined for the digital video broadcasting [DVB] specifications, e.g. DVB-Satellite [DVB-S2]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
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- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Error Detection And Correction (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
Iy,1=Ib,2, Qy,1=Qb,2, Iy,2=Ib,1, Qy,2=Qb,1
Iy,1=Ib,2, Qy,1=Qb,1, Iy,2=Ib,1, Qy,2=Qb,2
y0=b8, y1=b19, y2=b13, y3=b6, y4=b4, y5=b15, y6=b17, y7=b2, y8=b0, y9=b11, y10=b10, y11=b9, y12=b7, y13=b12, y14=b14, y15=b5, y16=b1, y17=b16, y18=b18, y19=b3
ここでb0とy0は、最上位ビット(MSB)であり、b19とy19は、最下位ビット(LSB)である。
y0=b19, y1=b8, y2=b6, y3=b13, y4=b15, y5=b4, y6=b2, y7=b17, y8=b11, y9=b0, y10=b9, y11=b10, y12=b12, y13=b7, y14=b5, y15=b14, y16=b16, y17=b1, y18=b3, y19=b18
y0=b9, y1=b10, y2=b12, y3=b7, y4=b5, y5=b14, y6=b16, y7=b1, y8=b3, y9=b18, y10=b19, y11=b8, y12=b6, y13=b13, y14=b15, y15=b4, y16=b2, y17=b17, y18=b11, y19=b0
y0=b10, y1=b9, y2=b7, y3=b12, y4=b14, y5=b5, y6=b1, y7=b16, y8=b18, y9=b3, y10=b8, y11=b19, y12=b13, y13=b6, y14=b4, y15=b15, y16=b17, y17=b2, y18=b0, y19=b11
Iy,1=Ib,2, Qy,1=Qb,2, Iy,2=Ib,1, Qy,2=Qb,1
Iy,1=Ib,2, Qy,1=Qb,1, Iy,2=Ib,1, Qy,2=Qb,2
y0=b10, y1=b23, y2=b15, y3=b8, y4=b6, y5=b17, y6=b19, y7=b4, y8=b2, y9=b21, y10=b13, y11=b0, y12=b11, y13=b12, y14=b14, y15=b9, y16=b7, y17=b16, y18=b18, y19=b5, y20=b1, y21=b20, y22=b22, y23=b3
y0=b23, y1=b10, y2=b8, y3=b15, y4=b17, y5=b6, y6=b4, y7=b19, y8=b21, y9=b2, y10=b0, y11=b13, y12=b12, y13=b11, y14=b9, y15=b14, y16=b16, y17=b7, y18=b5, y19=b18, y20=b20, y21=b1, y22=b3, y23=b22
y0=b11, y1=b12, y2=b14, y3=b9, y4=b7, y5=b16, y6=b18, y7=b5, y8=b1, y9=b20, y10=b22, y11=b3, y12=b10, y13=b23, y14=b15, y15=b8, y16=b6, y17=b17, y18=b19, y19=b4, y20=b2, y21=b21, y22=b13, y23=b0
y0=bl2, y1=b11, y2=b9, y3=b14, y4=b16, y5=b7, y6=b5, y7=b18, y8=b20, y9=b1, y10=b3, y11=b22, y12=b23, y13=b10, y14=b8, y15=b15, y16=b17, y17=b6, y18=b4, y19=b19, y20=b21, y21=b2, y22=b0, y23=b13
Claims (4)
- ビット置換がコンステレーションマッピング処理の前に実行される、LDPC符号に従ってエンコーダによって符号化し、インターリービング行列を用いて行列のインターリービングを行なったビットをQAM変調器に送るための処理方法において、
前記変調器が1024QAMタイプであり、
前記インターリービング行列が2×N列とNFRAME/(2×N)行を有し、ここでNは変調タイプに依存し、1024QAM変調に対しN=10であり、NFRAMEはエンコーダによって出力される符号化パケットのビット数を表わし、
前記置換が行列インターリーブビットの20ビットワードによって実行され、ビットy0 y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19からなるワードYを生成し、この順に、ビットb0 b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15 b16 b17 b18 b19からなるワードBから開始することで構成され、この順で、ビットy0 とb0がそれぞれワードYとBの最上位ビットであり、ビットy19とb19がそれぞれワードYとBの最下位ビットであり、
y0=b8, y1=b19, y2=b13, y3=b6, y4=b4, y5=b15, y6=b17, y7=b2, y8=b0, y9=b11, y10=b10, y11=b9, y12=b7, y13=b12, y14=b14, y15=b5, y16=b1, y17=b16, y18=b18, y19=b3
であることを特徴とする処理方法。 - 請求項1記載の方法を実行するための手段を備えたことを特徴とするQAM変調器を備えたデジタル信号送信用システム。
- ビット置換がコンステレーションデマッピング処理の後に実行される、デインターリービング行列を用いて行列デインターリービングを行ない、LDPC符号に従ってデコーダによって復号化したビットをQAM復調器によって受信されるようにした処理方法であって、
前記変調器が1024QAMタイプであり、
前記デインターリービング行列が2×N列とNFRAME/(2×N)行を有し、ここでNは変調タイプに依存し、1024QAM復調に対しN=10であり、NFRAMEはデコーダに入力される復号化パケットのビット数を表わし、
前記置換が行列デインターリーブビットの20ビットワードによって実行され、ビットb0 b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15 b16 b17 b18 b19からなるワードBを生成し、この順に、ビットy0 y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19からなるワードYから開始することで構成され、この順で、ビットy0 とb0がそれぞれワードYとBの最上位ビットであり、ビットy19とb19がそれぞれワードYとBの最下位ビットであり、
y0=b8, y1=b19, y2=b13, y3=b6, y4=b4, y5=b15, y6=b17, y7=b2, y8=b0, y9=b11, y10=b10, y11=b9, y12=b7, y13=b12, y14=b14, y15=b5, y16=b1, y17=b16, y18=b18, y19=b3
であることを特徴とする処理方法。 - 請求項3に記載の方法を実行するための手段を備えたことを特徴とするQAM復調器を備えたデジタル信号受信用システム。
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ITTO2008A000472 | 2008-06-16 | ||
IT000472A ITTO20080472A1 (it) | 2008-06-16 | 2008-06-16 | Metodo di elaborazione di segnali digitali e sistema di trasmissione e ricezione che implementa detto metodo |
PCT/IB2009/005886 WO2010004382A2 (en) | 2008-06-16 | 2009-06-08 | Method for processing digital signals, and transmission/reception system implementing said method |
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JP2011524680A JP2011524680A (ja) | 2011-09-01 |
JP5242780B2 true JP5242780B2 (ja) | 2013-07-24 |
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US (1) | US8385445B2 (ja) |
EP (1) | EP2294738B1 (ja) |
JP (1) | JP5242780B2 (ja) |
KR (1) | KR101562082B1 (ja) |
CN (1) | CN102090008B (ja) |
ES (1) | ES2443299T3 (ja) |
HK (1) | HK1155588A1 (ja) |
IT (1) | ITTO20080472A1 (ja) |
PL (1) | PL2294738T3 (ja) |
WO (1) | WO2010004382A2 (ja) |
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JP4788650B2 (ja) * | 2007-04-27 | 2011-10-05 | ソニー株式会社 | Ldpc復号装置およびその復号方法、並びにプログラム |
KR20110071225A (ko) * | 2009-12-21 | 2011-06-29 | 한국전자통신연구원 | 우수한 비트 오류 성능을 갖는 4+12+16 apsk 변조 방식을 위한 비트 매핑 방법 |
WO2012112872A1 (en) | 2011-02-17 | 2012-08-23 | Massachusetts Institute Of Technology | Rateless and rated coding using spinal codes |
EP3547550A1 (en) * | 2011-03-30 | 2019-10-02 | Samsung Electronics Co., Ltd. | Apparatus and method for mapping and demapping signals in a communication system using a low density parity check code |
ITTO20110310A1 (it) * | 2011-04-05 | 2012-10-06 | Rai Radiotelevisione Italiana | Metodo di elaborazione di segnali digitali e relativi sistemi di trasmissione e ricezione |
EP2518923A1 (en) * | 2011-04-26 | 2012-10-31 | Panasonic Corporation | Bit permutation patterns for BICM with LDPC codes of rate 2/5 and QAM constellations |
EP2518922A1 (en) * | 2011-04-26 | 2012-10-31 | Panasonic Corporation | Bit permutation patterns for BICM with LDPC codes of rate 1/3 and QAM constellations |
EP2525495A1 (en) * | 2011-05-18 | 2012-11-21 | Panasonic Corporation | Bit-interleaved coding and modulation (BICM) with quasi-cyclic LDPC codes |
EP2525497A1 (en) | 2011-05-18 | 2012-11-21 | Panasonic Corporation | Bit-interleaved coding and modulation (BICM) with quasi-cyclic LDPC codes |
EP2525496A1 (en) * | 2011-05-18 | 2012-11-21 | Panasonic Corporation | Bit-interleaved coding and modulation (BICM) with quasi-cyclic LDPC codes |
EP2536030A1 (en) * | 2011-06-16 | 2012-12-19 | Panasonic Corporation | Bit permutation patterns for BICM with LDPC codes and QAM constellations |
US9160399B2 (en) | 2012-05-24 | 2015-10-13 | Massachusetts Institute Of Technology | System and apparatus for decoding tree-based messages |
JP6229899B2 (ja) * | 2013-05-02 | 2017-11-22 | ソニー株式会社 | データ処理装置、及びデータ処理方法 |
CA2909311C (en) * | 2013-05-02 | 2022-05-03 | Sony Corporation | Reverse interchanging coding and decoding of low density parity check codewords |
KR102113711B1 (ko) | 2013-05-02 | 2020-06-02 | 소니 주식회사 | 데이터 처리 장치 및 데이터 처리 방법 |
US9806742B2 (en) | 2013-05-02 | 2017-10-31 | Sony Corporation | Data processing device and data processing method |
US9270412B2 (en) * | 2013-06-26 | 2016-02-23 | Massachusetts Institute Of Technology | Permute codes, iterative ensembles, graphical hash codes, and puncturing optimization |
US9531576B2 (en) * | 2013-10-29 | 2016-12-27 | Lg Electronics Inc. | Method and apparatus for transmitting modulation symbol using 256QAM in a wireless access system |
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US8204149B2 (en) * | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US7570698B2 (en) * | 2004-11-16 | 2009-08-04 | Intel Corporation | Multiple output multicarrier transmitter and methods for spatial interleaving a plurality of spatial streams |
US7516390B2 (en) | 2005-01-10 | 2009-04-07 | Broadcom Corporation | LDPC (Low Density Parity Check) coding and interleaving implemented in MIMO communication systems |
CN101133558B (zh) * | 2005-02-03 | 2010-10-06 | 新加坡科技研究局 | 发射数据的方法、接收数据的方法、发射器和接收器 |
WO2008155764A2 (en) * | 2007-06-18 | 2008-12-24 | Duolink Ltd. | Wireless network architecture and method for base station utilization |
US8386879B2 (en) * | 2007-08-23 | 2013-02-26 | Nec Laboratories America, Inc. | GLDPC encoding with Reed-Muller component codes for optical communications |
DK2056549T3 (da) * | 2007-10-30 | 2013-02-04 | Sony Corp | Databehandlingsanordning og -fremgangsmåde |
TW200947881A (en) * | 2007-11-26 | 2009-11-16 | Sony Corp | Data processing device and data processing method |
EP2248265B1 (en) * | 2008-03-03 | 2015-05-27 | RAI RADIOTELEVISIONE ITALIANA S.p.A. | Bit permutation patterns for ldpc coded modulation and qam constellations |
ES2431337T3 (es) * | 2008-06-04 | 2013-11-26 | Sony Corporation | Nueva estructura de trama para sistemas de múltiples portadoras |
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Publication number | Publication date |
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ES2443299T3 (es) | 2014-02-18 |
EP2294738B1 (en) | 2013-10-23 |
WO2010004382A3 (en) | 2010-06-10 |
PL2294738T3 (pl) | 2014-05-30 |
JP2011524680A (ja) | 2011-09-01 |
CN102090008B (zh) | 2014-11-12 |
EP2294738A2 (en) | 2011-03-16 |
US20110122960A1 (en) | 2011-05-26 |
KR101562082B1 (ko) | 2015-10-20 |
US8385445B2 (en) | 2013-02-26 |
HK1155588A1 (en) | 2012-05-18 |
ITTO20080472A1 (it) | 2009-12-17 |
KR20110033211A (ko) | 2011-03-30 |
WO2010004382A2 (en) | 2010-01-14 |
CN102090008A (zh) | 2011-06-08 |
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