Multistage Selective ML Decoding for Multidimensional Multicode DS-CDMA with Precoding

Author

Kim, Dong In

Author_Institution

Simon Fraser Univ., Burnaby

Volume

56

Issue

4

fYear

2008

fDate

4/1/2008 12:00:00 AM

Firstpage

518

Lastpage

522

Abstract

A high-rate, reliable uplink transmission is designed using multistage selective maximum-likelihood (ML) decoding for the multicode (MC) direct-sequence code-division multiple access (DS-CDMA) with precoding. The precoding achieves a constant envelope MC signal by adding some redundancy bits, resulting in rate loss, but multidimensional signaling on top of MC DS-CDMA enables to further increase the date rate. The designed multistage selective ML decoding is shown to be promising for use in uplink high-rate and reliable data transmission.

Keywords

code division multiple access; maximum likelihood decoding; precoding; spread spectrum communication; constant envelope MC signal; high-rate reliable uplink transmission; maximum-likelihood decoding; multicode direct-sequence code-division multiple access; multidimensional multicode DS-CDMA; multidimensional signaling; multistage selective ML decoding; precoding; rate loss; redundancy bits; Data communication; Direct-sequence code-division multiple access; Downlink; Error probability; Maximum likelihood decoding; Multiaccess communication; Multidimensional systems; Nonlinear distortion; Redundancy; Signal processing;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2008.060166

Filename

4489621