Mutual information model for LDPC codes OFDM system

Ze Song Fei; Xiang Chen; Lei Wan; Jing Ming Kuang

Mutual information model for LDPC codes OFDM system

Ze Song Fei^*, Xiang Chen, Lei Wan, Jing Ming Kuang

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

Abstract

Mutual information (MI) model for LDPC coded OFDM system is proposed. On the purpose of improving the flexibility and accuracy of LDPC-code-based link adaptation technology, the classical turbo-code-based MI model is extended to LDPC codes. Theoretical analysis and simulation results indicate that MI model for LDPC code outperforms the traditional minus exponential effective SNR mapping(EESM) model, both in terms of complexity and veracity of various modulation schemes and different sub-channel states. Thus it can be treated as a link-to-system(L2S) interface for multi-carrier system, typically OFDM system, which provides flexible and fast link adaptation.

Original language	English
Pages (from-to)	45-48
Number of pages	4
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	27
Issue number	SUPPL. 1
Publication status	Published - May 2007

Keywords

LDPC codes
Link quality model
Mutual information model
OFDM system

Cite this

@article{bab6f9e9fb664199bf775c1aaecd13dd,

title = "Mutual information model for LDPC codes OFDM system",

abstract = "Mutual information (MI) model for LDPC coded OFDM system is proposed. On the purpose of improving the flexibility and accuracy of LDPC-code-based link adaptation technology, the classical turbo-code-based MI model is extended to LDPC codes. Theoretical analysis and simulation results indicate that MI model for LDPC code outperforms the traditional minus exponential effective SNR mapping(EESM) model, both in terms of complexity and veracity of various modulation schemes and different sub-channel states. Thus it can be treated as a link-to-system(L2S) interface for multi-carrier system, typically OFDM system, which provides flexible and fast link adaptation.",

keywords = "LDPC codes, Link quality model, Mutual information model, OFDM system",

author = "Fei, {Ze Song} and Xiang Chen and Lei Wan and Kuang, {Jing Ming}",

year = "2007",

month = may,

language = "English",

volume = "27",

pages = "45--48",

journal = "Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology",

issn = "1001-0645",

publisher = "Beijing Institute of Technology",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Mutual information model for LDPC codes OFDM system

AU - Fei, Ze Song

AU - Chen, Xiang

AU - Wan, Lei

AU - Kuang, Jing Ming

PY - 2007/5

Y1 - 2007/5

N2 - Mutual information (MI) model for LDPC coded OFDM system is proposed. On the purpose of improving the flexibility and accuracy of LDPC-code-based link adaptation technology, the classical turbo-code-based MI model is extended to LDPC codes. Theoretical analysis and simulation results indicate that MI model for LDPC code outperforms the traditional minus exponential effective SNR mapping(EESM) model, both in terms of complexity and veracity of various modulation schemes and different sub-channel states. Thus it can be treated as a link-to-system(L2S) interface for multi-carrier system, typically OFDM system, which provides flexible and fast link adaptation.

AB - Mutual information (MI) model for LDPC coded OFDM system is proposed. On the purpose of improving the flexibility and accuracy of LDPC-code-based link adaptation technology, the classical turbo-code-based MI model is extended to LDPC codes. Theoretical analysis and simulation results indicate that MI model for LDPC code outperforms the traditional minus exponential effective SNR mapping(EESM) model, both in terms of complexity and veracity of various modulation schemes and different sub-channel states. Thus it can be treated as a link-to-system(L2S) interface for multi-carrier system, typically OFDM system, which provides flexible and fast link adaptation.

KW - LDPC codes

KW - Link quality model

KW - Mutual information model

KW - OFDM system

UR - http://www.scopus.com/inward/record.url?scp=41949111616&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:41949111616

SN - 1001-0645

VL - 27

SP - 45

EP - 48

JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

IS - SUPPL. 1

ER -

Mutual information model for LDPC codes OFDM system

Abstract

Keywords

Other files and links

Fingerprint

Cite this