Co-channel interference reduction method using CMA adaptive array antenna

Author

Furukawa, Hiroshi ; Kamio, Yukiyoshi ; Sasaoka, Hideichi

Author_Institution

Nat. Police Agency, Japan

Volume

2

fYear

1996

fDate

15-18 Oct 1996

Firstpage

512

Abstract

Co-channel interference disturbs the spectral efficiency in cellular radio systems. A co-channel interference reduction method using a constant modulus algorithm (CMA) adaptive array antenna is proposed. When we apply an adaptive array antenna to reduce co-channel interference, a co-channel interference signal may be captured. In this method, the replica of the interference signal is generated and then eliminated from the received signal, and thus the desired signal can be obtained. Computer simulation results of GMSK modulation confirm that a CMA adaptive array antenna that uses this method can reduce co-channel interference more than a conventional CMA adaptive array antenna

Keywords

adaptive antenna arrays; array signal processing; cellular radio; cochannel interference; direction-of-arrival estimation; interference suppression; land mobile radio; minimum shift keying; radiofrequency interference; CMA adaptive array antenna; GMSK modulation; cellular radio systems; cochannel interference reduction; cochannel interference signal; computer simulation results; constant modulus algorithm; interference signal replica; performance; received signal; spectral efficiency; Adaptive arrays; Antenna arrays; Antennas and propagation; Fading; Frequency; Interchannel interference; Land mobile radio cellular systems; Mobile communication; Radio transmitters; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on

Conference_Location

Taipei

Print_ISBN

0-7803-3692-5

Type

conf

DOI

10.1109/PIMRC.1996.567447

Filename

567447