A wireless multimedia CDMA system based on transmission power control

Author

Wu, Jianming ; Kohno, Ryuji

Author_Institution

Fac. of Eng., Yokohama Nat. Univ., Japan

Volume

14

Issue

4

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

683

Lastpage

691

Abstract

This paper proposes a wireless multimedia code division multiple access (CDMA) system based on transmission power control. When we transmit multimedia information (i.e., speech, image, and data), differences in information rate, traffic performance, and required quality should be taken into account. The wireless CDMA system can achieve a flexible balance if transmission power distribution is controlled by using channel measurement information, i.e., traffic. In this paper, the optimal control of transmission power is derived by linear programming and nonlinear programming. Numerical results using a LAN demonstrate that the proposed method can satisfy the required quality

Keywords

code division multiple access; linear programming; multimedia communication; nonlinear programming; optimal control; packet radio networks; power control; telecommunication control; telecommunication traffic; wireless LAN; channel measurement information; code division multiple access; data; image; information rate; linear programming; nonlinear programming; optimal control; quality; speech; traffic performance; transmission power control; wireless multimedia CDMA system; Control systems; Information rates; Linear programming; Multiaccess communication; Multimedia systems; Optimal control; Power control; Power distribution; Power measurement; Speech;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.490419

Filename

490419