Isometric multisignature multiuser MC-CDMA in frequency-selective fading

Author

Peacock, Matthew J M ; Collings, Iain B. ; Honig, Michael L.

Author_Institution

Sch. of Electr. & Inf Eng., Sydney Univ., NSW, Australia

fYear

2004

fDate

27 June-2 July 2004

Firstpage

433

Abstract

We characterize the asymptotic spectral efficiency of the linear minimum mean squared error (LMMSE) receiver for multiuser multisignature multicarrier (MC) code-division multiple access (CDMA) communication systems. We consider signatures which are orthogonal at each transmitter. Our results are asymptotic as the number of signatures per user and processing gain both tend to infinity with fixed ratio. Our results rely on approximating covariance matrices with unitarily invariant matrices that are asymptotically free.

Keywords

code division multiple access; covariance matrices; fading channels; least mean squares methods; multiuser channels; radio receivers; LMMSE receiver; asymptotic spectral efficiency; covariance matrices; frequency-selective fading; isometric multisignature multiuser MC-CDMA; linear minimum mean squared error; multicarrier code-division multiple access systems; Australia; Computer errors; Covariance matrix; Fading; Frequency domain analysis; H infinity control; Multiaccess communication; Multicarrier code division multiple access; Random variables; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on

Print_ISBN

0-7803-8280-3

Type

conf

DOI

10.1109/ISIT.2004.1365473

Filename

1365473