Title :
Adjacent channel interference rejection for land mobile radio systems
Author :
Guey, Jiann-Ching ; Khayrallah, Ali ; Bottomley, Gregory E.
Author_Institution :
Ericsson Inc., Res. Triangle Park, NC, USA
Abstract :
Adjacent channel interference (ACI) rejection for the uplink of a narrowband land mobile radio system in flat Rayleigh fading channel is considered. Receive antenna diversity with interference rejection combining (IRC) that accounts for the spatial correlation of the interfering signal is shown to achieve significant gains over traditional maximal ratio combining (MRC). The approach is then extended to exploit the temporal correlation of the ACI through fractionally-spaced processing. These approaches provide 10-30 dB ACI suppression gain, depending on the vehicle speed and noise level
Keywords :
Rayleigh channels; adaptive signal processing; adjacent channel interference; array signal processing; correlation methods; diversity reception; interference suppression; land mobile radio; receiving antennas; ACI suppression gain; adaptive implementation; adjacent channel interference rejection; array processing; cellular radio; flat Rayleigh fading channel; fractionally-spaced processing; interference rejection combining; interfering signal; maximal ratio combining; narrowband land mobile radio system; noise level; receive antenna diversity; satellite systems; spatial correlation; temporal correlation; uplink; vehicle speed; AWGN; Diversity reception; Fading; Filtering; Interchannel interference; Intersymbol interference; Land mobile radio; Pulse shaping methods; Satellite broadcasting; Signal processing;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686049
