Title :
Co-channel interference reduction method using CMA adaptive array antenna
Author :
Furukawa, Hiroshi ; Kamio, Yukiyoshi ; Sasaoka, Hideichi
Author_Institution :
Nat. Police Agency, Japan
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;
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
DOI :
10.1109/PIMRC.1996.567447
