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Optimization of Unequal Power coded Multiuser DS-CDMA using Extrinsic Information Transfer Charts

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Date

2006

Authors

Shepherd, David
Shi, Zhenning
Reed, Mark
Schreckenbach, Frank

Journal Title

Journal ISSN

Volume Title

Publisher

Institute of Electrical and Electronics Engineers (IEEE Inc)

Abstract

We utilize Extrinsic Information Transfer (EXIT) charts to optimize the power allocation in a multiuser turbocoded CDMA system. We investigate two methods to obtain the optimal power levels: the first minimises the total power; the second minimises the area between the transfer curves of the interference canceller (IC) or turbo decoder. We show through simulation that the optimized power levels allow for successful decoding of heavily loaded systems.

Description

Keywords

Keywords: Information transfer; Interference canceller; Turbo decoder; Computer simulation; Decoding; Information dissemination; Optimization; Signal interference; Turbo codes; Code division multiple access

Citation

URI

http://hdl.handle.net/1885/23087

Collections

Open Access Research

Source

Proceedings of the 40th Conference on Information Sciences and Systems

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.1109/CISS.2006.286690

Restricted until

2037-12-31

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Description
01_Shepherd_Optimization_of_Unequal_Power_2006.pdf (239.63 KB)

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