Low-Complexity Multiple-Component Turbo-Decoding-Aided Hybrid ARQ

被引：19

作者：

Chen, Hong ^{[1
]}

Maunder, Robert G. ^{[1
]}

Hanzo, Lajos ^{[1
]}

机构：

[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2011年 / 60卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ARQ; automatic repeat request; complexity reduction; EXIT charts; multiple-component turbo codes; STOPPING CRITERIA; SCHEME; CODES;

D O I：

10.1109/TVT.2011.2132766

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Previous research has focused on improving the throughput of hybrid automatic repeat request (HARQ) schemes. However, since turbo codes have been introduced into HARQ schemes, their complexity has increased owing to the iterative Bahl-Cocke-Jelinek-Raviv (BCJR) operations that are required following each retransmission. This paper explores the complexity of turbo HARQ schemes and proposes a new early stopping (ES) approach for iterative decoding based on mutual information (MI), which dynamically determines the appropriate number of BCJR operations to be performed following each incremental redundancy (IR) transmission. We demonstrate that the proposed ES-based multiple-component turbo code (MCTC)-aided and systematic twin-component turbo code (TCTC)-assisted HARQ schemes exhibit 60%-85% reduced complexity for signal-to-noise ratios (SNRs) below -2 dB without degrading the packet-loss ratio (PLR) and the throughput.

引用

页码：1571 / 1577

页数：7

共 15 条

[1] OPTIMAL DECODING OF LINEAR CODES FOR MINIMIZING SYMBOL ERROR RATE [J].

BAHL, LR ;

COCKE, J ;

JELINEK, F ;

RAVIV, J .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1974, 20 (02) :284-287

[2]

Chen H., 2010, Proc. IEEE Asian Solid-State Circuits Conf, P1, DOI [10.1145/1878537.1878621, DOI 10.1145/1878537.1878621]

[3]

Cheng HW, 2010, 2010 14TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ELECTRONICS (IWCE 2010), P331

[4] Iterative decoding of binary block and convolutional codes [J].

Hagenauer, J ;

Offer, E ;

Papke, L .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1996, 42 (02) :429-445

[5]

Hagenauer Joachim, 2004, 2004 12th European Signal Processing Conference (EUSIPCO), P1541

[6]

HANZO L, 2002, TURBO CODING TURBO E

[7] On the new stopping criteria of iterative turbo decoding by using decoding threshold [J].

Li, Fan-Min ;

Wu, An-Yeu .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2007, 55 (11) :5506-5516

[8]

Li L., 2010, IEEE T CIRCUITS SY 2

[9]

LIN S, 1982, IEEE T COMMUN, V30, P1701, DOI 10.1109/TCOM.1982.1095643

[10]

MOHER M, 1993, GLOBECOM '93 COMMUNICATIONS FOR A CHANGING WORLD, CONFERENCE RECORD, P809, DOI 10.1109/GLOCOM.1993.318192

← 1 2 →