IEEE.org| IEEE Xplore Digital Library| IEEE Standards| IEEE Spectrum| More Sites

Cart (Loading....) | Create Account | 

Close category search window
Author Searchbeta |  Advanced Search  |  Preferences |  Search Tips  |  More Search Options  
 
Browse Journals & Magazines > Consumer Electronics, IEEE Tr ...> Volume:48 Issue:2 Help

Design and implementation of a turbo decoder for 3G W-CDMA systems

Full Text Sign-In or Purchase

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing! close button
puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Xiao-Jun Zeng ; Dept. of Electron. Eng., Fudan Univ., Shanghai, China ; Zhi-Liang Hong

This paper presents the design and hardware implementation of a log-MAP turbo decoder used in the third generation (3G) mobile communication W-CDMA systems. The decoding algorithm is highly data dominated and needs many memories for data storing. The memory requirements are systematically investigated and optimized from two aspects: (1) an alternative called state metric difference-storing method is proposed to save the forward state metric (α) and the backward state metric (β) memory up to 1/3; (2) the interleaver address memory is reduced by repeating the address calculation at each iteration. The experimental results on an FPGA prototype of the decoder show that it supports 2Mbits/s data rate with five iterations, and for code blocks of more than 2000, a bit error rate (BER) of 10-6-10-7 is achieved at Eb/No =1.0 dB after only five iterations

Published in:
Consumer Electronics, IEEE Transactions on  (Volume:48 ,  Issue: 2 )

Date of Publication: May 2002

Page(s):
284 - 291
ISSN :
0098-3063
INSPEC Accession Number:
7304212
Digital Object Identifier :
10.1109/TCE.2002.1010133
Date of Current Version :
07 August 2002
Issue Date :
May 2002
Sponsored by :
IEEE Consumer Electronics Society

IEEE Account

Purchase Details

Profile Information

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.