[SDC17] Enhanced Single-Antenna Interference Cancellation from MMSE third-order complex Volterra filters
Conférence Internationale avec comité de lecture :
IEEE International Conference of Acoustic Speech and Signal Processing (ICASSP),
March 2017,
pp.1-4,
New-Orleans,
USA,
Mots clés: Widely linear, SAIC, non-circular, non-Gaussian, complex Volterra filter, CCI, MMSE
Résumé:
Widely linear (WL) filters have the capability to perform single
antenna interference cancellation (SAIC) of one rectilinear
or quasi-rectilinear co-channel interference (CCI). The
SAIC technology for quasi-rectilinear signals is operational in
GSM handsets but requires enhancements for both VAMOS
standard, an evolution of GSM/EDGE standard, and FBMCOQAM
networks, which are candidate for 5G mobile networks,
in particular. For this reason, we propose in this paper
a SAIC enhancement based on the use of third-order complex
Volterra (CV) filtering, exploiting both the non-Gaussianity
and the non-circularity of the signals up to the 6th-order. Limiting
the analysis to rectilinear signals for space limitations,
the performance of the proposed receiver are proved to outperform
those of WL receivers for SAIC of one CCI.