Power control for CDMA macro-micro cellular system

Author

Shin, Seung Hoon ; Kwak, Kyung Sup

Author_Institution

Dept. of Electr. Eng., Inha Univ., Inchon, South Korea

Volume

3

fYear

2000

fDate

2000

Firstpage

2133

Abstract

The hierarchical cell structure is needed for different requirements: large cells guarantee continuous coverage, while small cells are necessary to achieve good spectrum efficiency and high capacity. In this paper, the CDMA system in macro/micro cell structure is investigated. We propose an adaptive scheme of controlling the cell size according to a time-varying traffic distribution in a macro/micro overlaid cell environment. This aims to bring the communications quality in both the macro-cell and micro-cell to a target quality level. Simulation results show that the proposed scheme effectively controls the time-varying traffic fluctuations and provides an enhanced performance

Keywords

adaptive control; channel capacity; code division multiple access; microcellular radio; multiuser channels; power control; radiofrequency interference; spread spectrum communication; telecommunication control; telecommunication traffic; CDMA macro-micro cellular system; DS/CDMA; SIR; adaptive cell size control; communications quality; continuous coverage; hierarchical cell structure; high capacity; macro/micro cell structure; macro/micro overlaid cell environment; performance; power control; signal to interference ratio; simulation results; spectrum efficiency; time-varying traffic distribution; Adaptive control; Base stations; Communication system traffic control; Interference; Mobile communication; Multiaccess communication; Power control; Programmable control; Size control; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851649

Filename

851649