Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285283
