Power distribution and soft handoff for downlink channels in cellular CDMA systems

Author

Zhao, Dongmei

Author_Institution

Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada

Volume

3

fYear

2003

fDate

20-20 March 2003

Firstpage

1901

Abstract

Power distribution and soft handoff in cellular CDMA downlinks are studied in this paper. An optimum power distribution law is developed in order to guarantee the required signal-to-interference ratio for each connection. Based on this, soft handoff decisions are made at the mobile switching center for each connection based on the current channel conditions and resource availability in each cell. Simulation results show that soft handoff can improve the connection reliability and the system capacity in the downlink transmissions.

Keywords

cellular radio; code division multiple access; telecommunication channels; telecommunication switching; cellular CDMA system; channel condition; code division multiple access; connection reliability; downlink channel; downlink transmission; mobile switching center; optimum power distribution law; power distribution; resource availability; signal-to-interference ratio; soft handoff; system capacity; Availability; Diversity reception; Downlink; Fading; Interference; Multiaccess communication; Power distribution; Power system reliability; Resource management; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE

Conference_Location

New Orleans, LA, USA

ISSN

1525-3511

Print_ISBN

0-7803-7700-1

Type

conf

DOI

10.1109/WCNC.2003.1200677

Filename

1200677