A new power control algorithm in CDMA systems

Author

Wang, Qi ; Chin, Francois ; Lei, Zhongding

Author_Institution

Nat. Univ. of Singapore, Singapore

fYear

2004

fDate

30 Aug.-2 Sept. 2004

Firstpage

914

Lastpage

918

Abstract

Next generation wireless networks are mainly designed to support intermittent packetized data traffic. This situation raises the question of how to do power control for information sources other than voice. To explore this issue, we utilize the delay insensitive property of the data traffic to transmit packets when the channel condition is good and stop transmission when the channel condition is bad. An algorithm is proposed to control the transmission power based on signal-to-interference ratio estimation in a code-division multiple-access (CDMA) mobile radio system under multipath environment. Simulation results show that significant performance improvement has been achieved.

Keywords

4G mobile communication; code division multiple access; data communication; mobile radio; multipath channels; packet radio networks; power control; spread spectrum communication; telecommunication control; CDMA mobile radio; CDMA systems; code-division multiple access; delay insensitive property; intermittent packetized data traffic; multipath environment; next generation wireless networks; packet transmission; performance improvement; power control algorithm; signal-to-interference ratio estimation; transmission power; Communication system traffic control; Control systems; Delay; Land mobile radio; Multiaccess communication; Next generation networking; Power control; Radio control; Traffic control; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on

Print_ISBN

0-7803-8408-3

Type

conf

DOI

10.1109/ISSSTA.2004.1371834

Filename

1371834