A TDMA-based physical layer solution for high-rate synchronous CDMA systems

Author

Papadimitriou, Panayiotis D. ; Georghiades, Costas N.

Author_Institution

Res. & Technol., NOKIA Mobile Phones, Irving, TX, USA

Volume

1

fYear

2003

fDate

20-20 March 2003

Firstpage

466

Abstract

The wireless industry´s demand for higher data rates from cellular CDMA systems, makes the use of higher order modulation (e.g. 16-QAM) a necessity. Unfortunately, the high data rate schemes of the current 3G cellular standards don´t work well in wireless channels due to the poor equalization of the highly dense constellations. In this work we look at the performance of a fully-loaded CDMA system when we remove the spreading, if not the scrambling.

Keywords

cellular radio; code division multiple access; data communication; quadrature amplitude modulation; telecommunication channels; time division multiple access; 16-QAM; 3G cellular standards; TDMA-based physical layer; antenna receivers; cellular CDMA systems; code division multiple access; constellations; data communication; downlink; high data rates; higher order modulation; nonspread communication; quadrature amplitude modulation; synchronous CDMA systems; time division multiple access; wireless channels; Code division multiplexing; Delay estimation; Fading; Interference cancellation; Modulation coding; Multiaccess communication; Multipath channels; Physical layer; RAKE receivers; Tail;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE

Conference_Location

New Orleans, LA, USA

ISSN

1525-3511

Print_ISBN

0-7803-7700-1

Type

conf

DOI

10.1109/WCNC.2003.1200393

Filename

1200393