A New Multirate Multiple-Access Technique Based on the Combination of Space-Time Coding and Wavelet Modulation

Author

El-Khamy, Said E. ; Ghaleb, I.A. ; Nashaat, Mohamed A.

Author_Institution

Dept. of Electr. Eng., Alexandria Univ.

Volume

0

fYear

2006

fDate

14-16 March 2006

Firstpage

1

Lastpage

8

Abstract

A new multirate multiple-access technique based on the combination of space-time coding and wavelet modulation is presented in this paper. The proposed technique makes use of the good properties of space-time coding (STC) technique with multiple transmitting and receiving antennas which has enhanced performance in fading channels. However, STC was originally proposed for single user systems. To generalize it to multi-user systems, we propose to combine STC with wavelet modulation to provide both orthogonality among different users as well as multi-rate transmission capability in a way similar to wavelet-packet division multiplexing (WPDM) systems. This technique provides a high multiple-access interference rejection performance. Simulation show its good performance in Rayleigh fading channels

Keywords

Rayleigh channels; antenna arrays; interference suppression; modulation coding; multi-access systems; multiplexing; space-time codes; wavelet transforms; Rayleigh fading channel; STC technique; WPDM system; interference rejection performance; multiple receiving antennas; multiple transmitting antennas; multirate multiple-access technique; multiuser system; space-time coding; wavelet modulation; wavelet-packet division multiplexing; Base stations; Discrete wavelet transforms; Fading; Frequency diversity; Intserv networks; Modulation coding; Receiving antennas; Signal processing; Transmitting antennas; Wavelet packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 2006. NRSC 2006. Proceedings of the Twenty Third National

Conference_Location

Menoufiya

Print_ISBN

977-5031-84-2

Electronic_ISBN

977-5031-84-2

Type

conf

DOI

10.1109/NRSC.2006.386341

Filename

4275138