Optimal erasure selection of M-ary PAM signaling for errors and erasures decoding algorithms

Author

Kwon, Yeong-Hyeon ; Oh, Mi-Kyung ; Park, Dong-Jo

Author_Institution

LG Electron., Seoul

Volume

56

Issue

12

fYear

2008

fDate

12/1/2008 12:00:00 AM

Firstpage

2071

Lastpage

2079

Abstract

Erasure selection for errors-and-erasures decoding algorithms is investigated and analyzed, where declaring erasures provides additional gain for hard decision decoding. To derive an analytical criterion for optimal erasure selection, we first investigate erasure effects on decoding performance, by which a metric function for erasure selection is derived. From the derived metric, a suboptimal threshold is defined, which can be used for errors and erasures decoding of large code-distance channel codes. Moreover, application to M-ary (M>2) PAM constellation is also described. For verification of the proposed erasure threshold, simulation results with popular channel codes are included.

Keywords

channel coding; decoding; pulse amplitude modulation; erasure selection metric function; errors-and-erasures decoding algorithm; hard decision decoding; large code-distance channel code; m-ary PAM signaling; optimal erasure selection; pulse amplitude modulation; suboptimal erasure threshold; Algorithm design and analysis; Amplitude modulation; Degradation; Error analysis; Mathematical model; Maximum likelihood decoding; Performance analysis; Pulse modulation; Signal analysis; Testing; Errors and erasures decoding (EED); generalized minimum distance (GMD) decoding; hard decision decoding (HDD); maximum likelihood decoding (MLD); pulse amplitude modulation (PAM);

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

Conference_Location

12/1/2008 12:00:00 AM

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2008.050302

Filename

4711171