A multiple access scheme for the uplink of broadband wireless systems

Author

Dinis, Rui ; Falconer, David ; Lam, Chan Tong ; Sabbaghian, Maryam

Author_Institution

CAPS-IST, Tech. Univ. Lisbon, Portugal

Volume

6

fYear

2004

fDate

29 Nov.-3 Dec. 2004

Firstpage

3808

Abstract

We present a multiple access scheme for the uplink of broadband wireless systems. We consider SC (single carrier) based block transmission, with all users transmitting continuously, regardless of their data-rate. The transmitted signals can have very low envelope fluctuations. Moreover, the different users remain orthogonal, even for severe time-dispersive channels. By employing IB-DFE (iterative block decision feedback equalization) techniques we can have detection performances close to the matched filter bound, and even for fully loaded systems and severe time-dispersive channels.

Keywords

broadband networks; decision feedback equalisers; dispersive channels; multi-access systems; radio networks; signal detection; DFE; broadband wireless system uplink; envelope fluctuations; fully loaded systems; iterative block decision feedback equalization; matched filter bound; multiple access scheme; single carrier based block transmission; time-dispersive channels; Base stations; Bit rate; Decision feedback equalizers; Fluctuations; Frequency conversion; Frequency synchronization; High power amplifiers; Matched filters; OFDM modulation; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE

Print_ISBN

0-7803-8794-5

Type

conf

DOI

10.1109/GLOCOM.2004.1379081

Filename

1379081