Effects of path loss and fringe user distribution on CDMA cellular frequency reuse efficiency

Author

Rappaport, Theodore S. ; Milstein, Laurence B.

Author_Institution

Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

fYear

1990

fDate

2-5 Dec 1990

Firstpage

500

Abstract

Expressions that quantitatively describe the impact of path loss and user distribution on CDMA (code division multiple access) cellular radio system performance are determined. Path loss in typical microcellular and cellular channels is shown to increase exponentially with distance, to between the second and third power, as opposed to the commonly quoted fourth power law. Two performance measures, frequency reuse efficiency and bit error rate probability, are evaluated for CDMA cellular systems. Values for frequency reuse efficiency are derived for the uplink using different propagation rules and spatial distributions of subscribers in adjacent cells. Bit error rate probabilities are found as a function of the number of users for a two-cell downlink model that assumes the subscriber is straddling the cell boundaries

Keywords

cellular radio; code division multiple access; error statistics; radiowave propagation; CDMA; bit error rate probability; cell boundaries; cellular channels; cellular radio; code division multiple access; frequency reuse efficiency; fringe user distribution; microcellular channels; path loss; propagation rules; radiowave propagation; spatial distributions; two-cell downlink model; Base stations; Bit error rate; Downlink; Electromagnetic propagation; Frequency; Land mobile radio cellular systems; Microwave communication; Multiaccess communication; Propagation losses; Radio transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-87942-632-2

Type

conf

DOI

10.1109/GLOCOM.1990.116562

Filename

116562