Investigation of a combined power control scheme for a time-division duplex CDMA system

Author

Chang, Jiang ; Wang, Wenbo ; Yang, Dacheng

Author_Institution

Wireless Commun. Center, Beijing Univ. of Posts & Telecommun., China

fYear

2000

fDate

2000

Firstpage

46

Lastpage

49

Abstract

Time-Division Duplex (TDD)-CDMA technique is now accepted as a candidate of 3^rd generation mobile communication system (IMT-2000). As for Code Division Multiple Access (CDMA) system, power control is essential to mitigate the “Near-Far” effect and improve the system performance. A TDD system requires a special power control scheme due to its link characteristics. In this paper we present a combined power control in TDD and also investigate its performance by computer simulations. The simulation results show that the proposed power control scheme can overcome the deficiency of open-loop power control and work well in a TDD-CDMA scenario

Keywords

cellular radio; code division multiple access; time division multiplexing; IMT-2000; Near-Far effect; combined power control scheme; deficiency; link characteristics; third-generation mobile communication system; time-division duplex CDMA system; Base stations; Fading; Mobile communication; Multiaccess communication; Power control; Power generation; Random variables; Rayleigh channels; Shadow mapping; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on

Conference_Location

Tianjin

Print_ISBN

0-7803-6253-5

Type

conf

DOI

10.1109/APCCAS.2000.913402

Filename

913402