scholarly journals EXIT chart aided design of periodically punctured turbo codes

2010 ◽  
Vol 46 (14) ◽  
pp. 1001 ◽  
Author(s):  
F. Babich ◽  
A. Crismani ◽  
R.G. Maunder
Keyword(s):  
Turbo Codes ◽  
Exit Chart ◽  
Aided Design ◽  
Punctured Turbo Codes

Application of Extrinsic Information Transfer Charts to Anticipate Turbo Code Behavior

2013 ◽  
pp. 97-104
Author(s):  
Izabella Lokshina
Keyword(s):  
Turbo Codes ◽  
Iterative Decoding ◽  
Information Transfer ◽  
Turbo Code ◽  
A Priori ◽  
Substantial Reduction ◽  
International Standards ◽  
Extrinsic Information ◽  
Exit Chart ◽  
Analysis Technique

This paper examines turbo codes that are currently introduced in many international standards, including the UMTS standard for third generation personal communications and the ETSI DVB-T standard for Terrestrial Digital Video Broadcasting. The convergence properties of the iterative decoding process associated with a given turbo-coding scheme are estimated using the analysis technique based on so-called extrinsic information transfer (EXIT) chart. This approach provides a possibility to anticipate the bit error rate (BER) of a turbo code system using only the EXIT chart. It is shown that EXIT charts are powerful tools to analyze and optimize the convergence behavior of iterative systems utilizing the turbo principle. The idea is to consider the associated SISO stages as information processors that map input a priori LLR’s onto output extrinsic LLR’s, the information content being obviously assumed to increase from input to output, and introduce them to the design of turbo systems without the reliance on extensive simulation. Compared with the other methods for generating EXIT functions, the suggested approach provides insight into the iterative behavior of linear turbo systems with substantial reduction in numerical complexity.

scholarly journals EXIT chart aided design of near-capacity UWB impulse radio using self-concatenated codes

2011 ◽  
Vol 8 (18) ◽  
pp. 1486-1491
Author(s):  
Raja Ali Riaz ◽  
Ghufran Shafiq ◽  
Hamid Zaib ◽  
Bilal Tariq Malik ◽  
Saeed Ahmad
Keyword(s):  
Impulse Radio ◽  
Concatenated Codes ◽  
Exit Chart ◽  
Aided Design

Some Notes on Rate-Compatible Punctured Turbo Codes (RCPTC) Design

2004 ◽  
Vol 52 (5) ◽  
pp. 681-684 ◽  
Author(s):  
F. Babich ◽  
G. Montorsi ◽  
F. Vatta
Keyword(s):  
Turbo Codes ◽  
Punctured Turbo Codes

scholarly journals Protograph-Based Interleavers for Punctured Turbo Codes

2018 ◽  
Vol 66 (5) ◽  
pp. 1833-1844 ◽  
Author(s):  
Ronald Garzon Bohorquez ◽  
Charbel Abdel Nour ◽  
Catherine Douillard
Keyword(s):  
Turbo Codes ◽  
Punctured Turbo Codes

Application of Extrinsic Information Transfer Charts to Anticipate Turbo Code Behavior

2011 ◽  
Vol 3 (2) ◽  
pp. 31-37 ◽  
Author(s):  
Izabella Lokshina
Keyword(s):  
Turbo Codes ◽  
Iterative Decoding ◽  
Information Transfer ◽  
Turbo Code ◽  
A Priori ◽  
Substantial Reduction ◽  
International Standards ◽  
Extrinsic Information ◽  
Suggested Approach ◽  
Exit Chart

This paper examines turbo codes that are currently introduced in many international standards, including the UMTS standard for third generation personal communications and the ETSI DVB-T standard for Terrestrial Digital Video Broadcasting. The convergence properties of the iterative decoding process associated with a given turbo-coding scheme are estimated using the analysis technique based on so-called extrinsic information transfer (EXIT) chart. This approach provides a possibility to anticipate the bit error rate (BER) of a turbo code system using only the EXIT chart. It is shown that EXIT charts are powerful tools to analyze and optimize the convergence behavior of iterative systems utilizing the turbo principle. The idea is to consider the associated SISO stages as information processors that map input a priori LLR’s onto output extrinsic LLR’s, the information content being obviously assumed to increase from input to output, and introduce them to the design of turbo systems without the reliance on extensive simulation. Compared with the other methods for generating EXIT functions, the suggested approach provides insight into the iterative behavior of linear turbo systems with substantial reduction in numerical complexity.

New Punctured Turbo Codes

2003 ◽  
Vol 57 (3) ◽  
pp. 206-213
Author(s):  
Kenan Aksoy ◽  
Ümit Aygölü
Keyword(s):  
Turbo Codes ◽  
Punctured Turbo Codes
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