Adaptive rate and power DS/CDMA communications in fading channels

Author

Kim, Sang Wu

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

fYear

1999

fDate

1999

Firstpage

1563

Abstract

We investigate the average information rates attained by adapting the transmit power and the information rate relative to channel variations in code division multiple access communication systems. Our results show that the rate adaptation provides a higher average information rate than the power adaptation for a given average transmit power, and the rate increase when using rate adaptation is more significant for channels with a faster decaying multipath intensity profile and weaker line-of-sight component

Keywords

adaptive systems; cellular radio; code division multiple access; fading channels; multipath channels; radiofrequency interference; spread spectrum communication; adaptive rate; average information rates; channel variations; code division multiple access communication systems; fading channels; line-of-sight component; multipath intensity profile; power DS/CDMA communications; power adaptation; transmit power; Delay; Fading; Information rates; Interference; Multiaccess communication; Nakagami distribution; Radio link; Radio transmitters; Random variables; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Conference_Location

New Orleans, LA

ISSN

1525-3511

Print_ISBN

0-7803-5668-3

Type

conf

DOI

10.1109/WCNC.1999.797001

Filename

797001