Adaptive anti-jamming algorithm in DS-CDMA cellular system

Author

Lee, Sook-Jin ; Um, Hwa-Young ; Lim, Soon-Young ; Park, Woo-Gu

Author_Institution

Mobile Traffic Management Section, Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

1996

fDate

18-21 Nov 1996

Firstpage

342

Lastpage

345

Abstract

This paper describes an adaptive anti-jamming algorithm in DS-CDMA cellular system. The proposed algorithm consists of detection, verification and control modules. The detection module is based on the investigation of user´s Eb/Mo received at the channel element (CE) of Base Station (BS) for finding a jamming mobile station (MS) when all the SNRs of the mobile stations are greater than a threshold. In order to find the jamming MS in which the mean of received Eb/No is less than 8.5 dB, the verification module is based on transmitting the decreased power control bit to the MS. The control module is based on the disconnection of active call of jamming MS. As a result, we can find a jamming MS using the adaptive anti-jamming algorithm in DS-CDMA cellular system and prevent the coverage of cell from shrinking due to the jamming MS and decrease the load of system by hand-off

Keywords

adaptive signal detection; cellular radio; code division multiple access; jamming; DS-CDMA cellular system; SNR; adaptive anti-jamming algorithm; control module; detection module; jamming mobile station; verification module; Base stations; Detection algorithms; Interference; Jamming; Multiaccess communication; Power control; Radio propagation; Radio transmitters; Signal to noise ratio; Telecommunication traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996., IEEE Asia Pacific Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-3702-6

Type

conf

DOI

10.1109/APCAS.1996.569286

Filename

569286