Optimal puncturing of unreliable bits in hybrid ARQ protocol to enhance network performance

Author

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

Author_Institution

Dept. EECS, Korea Adv. Inst. of Sci. & Technol., Daejon, South Korea

Volume

2

fYear

2003

fDate

9-12 Nov. 2003

Firstpage

1718

Abstract

In this paper, we consider the problem of increasing throughput of the hybrid automatic retransmission request (H-ARQ). In H-ARQ protocol, a fast and low-complexity decoding algorithm, as known as hard decision decoding (HDD), is required for the high transmission rate. Therefore, we propose a ´receive-side puncturing algorithm´ to improve the decoding error performance of the HDD, which enhances the overall system throughput of H-ARQ. In addition, we describe performance improvement analytically and derive an optimal threshold for our puncturing algorithm. Simulations verify our theoretical analysis and show the increased throughput of the H-ARQ in both AWGN and Rayleigh fading channels.

Keywords

AWGN channels; Rayleigh channels; automatic repeat request; decoding; error statistics; forward error correction; radio receivers; AWGN channel; H-ARQ protocol; HDD; Rayleigh fading channels; error performance; hard decision decoding; hybrid automatic retransmission request; receive-side puncturing algorithm; AWGN; Additive white noise; Automatic repeat request; Decoding; Error correction codes; Fading; Forward error correction; Intelligent networks; Protocols; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on

Print_ISBN

0-7803-8104-1

Type

conf

DOI

10.1109/ACSSC.2003.1292278

Filename

1292278