The effects of jamming on control policies for frequency-hopped slotted ALOHA

Author

Clare, L.P. ; Baker, J.E.

Author_Institution

Rockwell Int. Sci. Center, Thousand Oaks, CA, USA

fYear

1990

fDate

2-5 Dec 1990

Firstpage

1132

Abstract

A performance analysis of the effects of interference due to jamming on transmission control policies for slotted Aloha with frequency-hopped code division multiple access is presented. Both static and dynamic control schemes are considered. With static control, the transmission probability is fixed, while dynamic control adaptively varies the transmission probabilities as a function of the network backlog as well as the interference level due to jamming. Dynamic control is shown to provide a considerable performance improvement over static control when the interference level is unknown or time varying. Performance is evaluated using both analytical and simulation models. A numerical performance evaluation is given for a network of 250 users and a spread factor (number of hopping positions) of 100 where the other systems parameters are varied

Keywords

code division multiple access; frequency agility; jamming; packet switching; protocols; radio systems; spread spectrum communication; FH CDMA; analytical models; dynamic control schemes; frequency-hopped code division multiple access; frequency-hopped slotted ALOHA; interference; jamming effects; packet radio; performance analysis; simulation models; spread factor; static control schemes; transmission control policies; Analytical models; Frequency conversion; Interference; Jamming; Multiaccess communication; Performance analysis; Robustness; Spread spectrum communication; Stability; Telecommunication traffic;

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.1990.116677

Filename

116677