On the capture probability for a large number of stations

Author

Hajek, Bruce ; Krishna, Arvind ; LaMaire, Richard O.

Author_Institution

Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA

Volume

45

Issue

2

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

254

Lastpage

260

Abstract

The probability of capture under a model (for a land mobile radio direct sequence spread spectrum system) based on the ratio of the largest received power to the sum of interference powers is examined in the limit of a large number of transmitting stations. It is shown in great generality that the limit depends only on the capture ratio threshold and the roll-off exponent of the distribution of power received from a typical station. This exponent is insensitive to many typical channel effects such as Rician or Rayleigh fading and log-normal shadowing. The model is suitable for large systems with noncoherently combined interference

Keywords

Rayleigh channels; Rician channels; fading; land mobile radio; probability; pseudonoise codes; radio transmitters; radiofrequency interference; spread spectrum communication; Rayleigh fading; Rician fading; capture probability; capture ratio threshold; channel effects; direct sequence spread spectrum system; interference power; land mobile radio; log-normal shadowing; noncoherently combined interference; received power distribution; roll-off exponent; transmitting stations; Additive noise; Attenuation; Interference; Power system modeling; Radio transmitters; Random variables; Rayleigh channels; Rician channels; Shadow mapping; Spread spectrum communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.554374

Filename

554374