Complexity Reduced Log-MAP Algorithm for the Turbo Decoding

被引：0
|
作者：
Lou Xizhong [1 ]
Chen Yanmin [2 ]
Jin Ning [1 ]
机构：
[1] China Jiliang Univ, Coll Informat Engn, Hangzhou, Zhejiang, Peoples R China
[2] China Jiliang Univ, Coll Comp Sci, Hangzhou, Zhejiang, Peoples R China
来源：
2009 INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND COMPUTATIONAL INTELLIGENCE, VOL I, PROCEEDINGS | 2009年
关键词：
Turbo code; Log-MAP algorithm; look-up table;
D O I：
10.1109/AICI.2009.56
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Due to the high complexity of the Log-MAP algorithm, many modifications and simplifications were proposed to simplify the VLSI implementation of turbo decoding. A new way to reduce the complexity of the Log-MAP algorithm is presented. It takes place of log and exp operation with look-up table without considering the channel state information, which make the decoding process more easily and faster. In some communication system, it is hard or impossible to estimate the channel state information. It allows for efficient ASIC implementation and almost has the same performance as the Log-MAP algorithm. The simulation results show that the presented algorithm has a good performance in all circumstance.
引用
收藏
页码：89 / +
页数：2
相关论文
共 50 条
  • [1] A reduced complexity implementation of the Log-Map algorithm for Turbo-codes decoding
    Wang, Y
    Tsui, CY
    Cheng, RSK
    [J]. 2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI, 2000, : 2621 - 2624
  • [2] A linear Log-MAP algorithm for turbo decoding and turbo equalization
    Talakoub, S
    Sabeti, L
    Shahrrava, B
    Ahmadi, M
    [J]. WiMob'2005: IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, Vol 1, Proceedings: WIRELESS COMMUNICATIONS, 2005, : 182 - 186
  • [3] Butterfly log-MAP decoding algorithm for turbo code
    Hou, J
    Yang, MS
    Lee, MH
    [J]. DSP 2002: 14TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING PROCEEDINGS, VOLS 1 AND 2, 2002, : 651 - 654
  • [4] A new memory-reduced architecture design for Log-MAP algorithm in turbo decoding
    Tsai, TH
    Lin, CH
    [J]. PROCEEDINGS OF THE IEEE 6TH CIRCUITS AND SYSTEMS SYMPOSIUM ON EMERGING TECHNOLOGIES: FRONTIERS OF MOBILE AND WIRELESS COMMUNICATION, VOLS 1 AND 2, 2004, : 607 - 610
  • [5] Improvement of Turbo Code's Log-MAP decoding algorithm
    Shen Min
    Li Xuan-jie
    [J]. Global Mobile Congress 2005, 2005, : 598 - 601
  • [6] Modified Log-MAP Algorithm for Simplified Decoding of Turbo and Turbo TCM Codes
    Papaharalabos, Stylianos
    Sybis, Michal
    Tyczka, Piotr
    Mathiopoulos, P. Takis
    [J]. 2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, 2009, : 3181 - +
  • [7] Reduced complexity Log-MAP algorithm with Jensen inequality based non-recursive max* operator for turbo TCM decoding
    Sybis, Michal
    Tyczka, Piotr
    [J]. EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, 2013,
  • [8] Improved Log-MAP decoding algorithm for turbo-like codes
    Wang, Hao
    Yang, Hongwen
    Yang, Dacheng
    [J]. IEEE COMMUNICATIONS LETTERS, 2006, 10 (03) : 186 - 188
  • [9] Reduced complexity Log-MAP algorithm with Jensen inequality based non-recursive max∗ operator for turbo TCM decoding
    Michal Sybis
    Piotr Tyczka
    [J]. EURASIP Journal on Wireless Communications and Networking, 2013
  • [10] Log-MAP equivalent Chebyshev inequality based algorithm for turbo TCM decoding
    Sybis, M.
    [J]. ELECTRONICS LETTERS, 2011, 47 (18) : 1049 - U1591
12345