Power Allocation for Distributed Turbo Product Codes (DTPC)

Author

Obiedat, Esam A. ; Cao, Lei

Author_Institution

Electr. Eng. Dept., Univ. of Mississippi, Oxford, MS, USA

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

1

Lastpage

6

Abstract

In this paper we investigate the effect of power allocation on the performance of the Distributed Turbo Product Code (DTPC) system. We study the error propagation on distributed coding systems when the relay makes erroneous decisions and present a simple power allocation method to alleviate the effect of relay decoding errors on the iterative decoding at the destination. We validate this method with results of an exhaustive search and compare its performance with the fixed power assignments for DTPC system with Decode and Forward (DF) and Soft Decode and Forward (SDF) relaying protocols. Compared to the fixed power assignment, the proposed method for power allocation shows a performance gain of 1.2dB at 10^-4 Bit Error Rate (BER).

Keywords

decode and forward communication; error statistics; iterative decoding; product codes; protocols; turbo codes; BER; DTPC system; bit error rate; decode and forward relaying protocols; distributed turbo product code system; error propagation; fixed power assignments; iterative decoding; power allocation method; relay decoding errors; soft decode and forward relaying protocols; Bit error rate; Decoding; Encoding; Iterative decoding; Relays; Resource management; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE

Conference_Location

Miami, FL

ISSN

1930-529X

Print_ISBN

978-1-4244-5636-9

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2010.5683288

Filename

5683288