Effects of slow fading SIR errors on CDMA capacity

Author

Wu, Qiang ; Wu, Wei-Ling ; Zhou, Jiong-Pan

Author_Institution

Dept. of Inf. Eng., Beijing Univ. of Posts & Telecommun., China

Volume

3

fYear

1997

fDate

4-7 May 1997

Firstpage

2215

Abstract

With fast close-loop power control, slowly varying power control errors, which cannot be eliminated by coding and interleaving, have been found lognormally distributed in the received SIR and may result in great performance reduction. In this paper, a closed-form formula is derived to show an important fact that 1 dB standard deviation of the received SIR corresponds to 2.3 dB reduction of the CDMA reverse link capacity

Keywords

cellular radio; channel capacity; closed loop systems; code division multiple access; fading; land mobile radio; log normal distribution; power control; pseudonoise codes; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; CDMA reverse link capacity; DS/CDMA cellular radio system; closed-form formula; coding; fast close-loop power control; interleaving; lognormal distribution; performance reduction; power control errors; received SIR; slow fading SIR errors; standard deviation; Capacity planning; Eigenvalues and eigenfunctions; Fading; Multiaccess communication; Power control; Probability; Rayleigh channels; Statistics; Steady-state; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.606018

Filename

606018