Sensitivity of interfering power estimation to combining strategies in MC-CDMA systems

Author

Lestable, Thierry ; Wautier, Armelle ; Antoine, Jacques ; Brouet, Jérôme ; Husson, Lionel ; Kumar, Vinod ; Dany, Jean-Claude

Author_Institution

Dept. of Radio, Alcatel Res. & Innovations, Marcoussis, France

Volume

3

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

1544

Abstract

In this paper, the problem of accuracy in noise/interfering power estimate for an MC-CDMA receiver is considered. This quality parameter is a key feature in the link control for next generation wireless systems. It is used for bit loading, power control, dynamic frequency selection, or even handover. Adaptation of physical layer can also be based on this quality estimate. Therefore, its accuracy is of paramount importance when designing such adaptive systems. The sensitivity of the noise/interfering power estimate are compared and discussed for different diversity combining schemes viz: maximal ratio combining (MRC), equal gain combining (EGC), and selective combining (SC).

Keywords

adaptive systems; code division multiple access; diversity reception; radio networks; radio receivers; sensitivity; MC-CDMA systems; adaptive systems; bit loading; diversity combining schemes; dynamic frequency selection; equal gain combining; handover; maximal ratio combining; multicarrier-code division multiple access; power control; power estimation interference; radio receiver; selective combining; sensitivity; wireless systems; Additive white noise; Diversity reception; Frequency domain analysis; Gaussian noise; Multiaccess communication; Multicarrier code division multiple access; OFDM; Physical layer; Power system modeling; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285283

Filename

1285283