DocumentCode :
1885031
Title :
Adaptive joint detection of co-channel signals for ANSI-136 handsets
Author :
Hafeez, Abdulrauf ; Arslan, Hüseyin ; Molnar, Karl J.
Author_Institution :
Ericsson Inc, Research Triangle Park, NC, USA
Volume :
2
fYear :
2001
fDate :
Sep/Oct 2001
Abstract :
In this paper, we propose an adaptive joint detection receiver for co-channel interference cancellation in ANSI-136 handsets. The proposed receiver adaptively mitigates the dominant impairment present in the system: performing two-user joint demodulation in the presence of a dominant interferer and resorting to single-user equalization in a noise or inter-symbol-interference-limited system. The choice for the demodulator is based on the residual impairment power estimates obtained from single-user and joint acquisition using the training symbols of the desired user. Simulation results for a 1900 MHz ANSI-136 system indicate that the adaptive receiver performs well in various environments. By selecting the best demodulator for each slot on the basis of instantaneous channel conditions, the adaptive detector outperforms both single-user and joint detectors in fading channels
Keywords :
adaptive equalisers; adaptive signal detection; cochannel interference; demodulation; fading channels; interference suppression; intersymbol interference; mobile radio; 1900 MHz; ANSI-136 handsets; adaptive joint detection receiver; co-channel interference; demodulator; dominant interferer; fading channels; instantaneous channel conditions; interference cancellation; intersymbol-interference-limited system; noise-limited system; residual impairment power estimates; single-user equalization; two-user joint demodulation; Adaptive equalizers; Adaptive signal detection; Demodulation; Detectors; Interchannel interference; Interference cancellation; Noise cancellation; Signal detection; Telephone sets; Working environment noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
Type :
conf
DOI :
10.1109/PIMRC.2001.965271
Filename :
965271
Link To Document :
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