Capacity Enhancement for Indoor Up-Link MC-CDMA in Dense-Populated Area

Author

Yang, B. ; Hajian, M. ; Ligthart, L.P.

Author_Institution

Dept. of Electr. Eng., Delft Univ. of Technol.

fYear

2007

fDate

22-25 April 2007

Firstpage

3046

Lastpage

3050

Abstract

In this paper, we proposed a simple algorithm to increase the MC-CDMA system capacity in an indoor mobile environment. This algorithm combines an efficient blind adaptive beamforming based on maximum signal-to-interference-noise ratio (MSINR) with the power control (PC). It has low computational complexity and converges fast. Simulation results show that with the beamforming only, the SINR improves about 7.9 dB. With the power control add to it, the overall system capacity is further increased about 23%. In addition, the algorithm can assign different target BER to different users. This can further increase the overall system capacity.

Keywords

array signal processing; code division multiple access; error statistics; indoor radio; mobile radio; power control; radio links; telecommunication control; BER; MSINR; blind adaptive beamforming; capacity enhancement; dense-populated area; indoor mobile environment; indoor up-link MC-CDMA; maximum signal-to-interference-noise ratio; power control; Adaptive control; Array signal processing; Fading; Interference; Multiaccess communication; Multicarrier code division multiple access; Power control; Power system modeling; Programmable control; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.624

Filename

4213052