Title :
Detection of non-orthogonal PAM signals with spectral overlapping
Author :
de Lucena, A.M.P. ; Mota, J.C.M. ; Cavalcante, C.C.
Author_Institution :
Nat. Inst. of Space Res., CRN-CEP, Fortaleza, CE, Brazil
Abstract :
A model for a communication system transmitting two non-orthogonal n-PAM signals with spectral overlapping through an AWGN band-limited channel is established. The system is shown to be equivalent to a discrete time-variant multi-user channel with strong interference among users. A receiver structure based on source separation concepts is proposed. The performance of signal detection in terms of symbol error rate is evaluated using Monte Carlo simulations.
Keywords :
AWGN channels; Monte Carlo methods; bandlimited signals; error statistics; multiuser detection; pulse amplitude modulation; source separation; spectral analysis; time-varying channels; AWGN band-limited channel; Monte Carlo simulation; communication system model; discrete time-variant channel; multiuser channel; nonorthogonal PAM signal detection; pulse amplitude modulation; receiver structure; source separation concept; spectral overlapping; symbol error rate; AWGN; Additive white noise; Bandwidth; Communication systems; Gaussian noise; Low pass filters; Mathematical model; Signal detection; Source separation; Transmitters;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2005 IEEE 6th Workshop on
Print_ISBN :
0-7803-8867-4
DOI :
10.1109/SPAWC.2005.1506060
