Title :
A computationally efficient FIR MMSE-DFE for CCI-impaired dispersive channels
Author :
Al-Dhahir, Naofal
Author_Institution :
Corp. Res. & Dev. Center, Gen. Electr. Co., Schenectady, NY, USA
fDate :
1/1/1997 12:00:00 AM
Abstract :
Fast algorithms for the computation of the FIR MMSE-DFE in the presence of ISI, CCI, and colored noise are presented. Substantial reductions in computational complexity are achieved by using the powerful analytical tools of Cholesky factorization and displacement structure to fully exploit the structure of the problem. Both symbol-spaced and fractionally spaced feedforward filters are considered. Finally, we give a detailed complexity evaluation of the proposed algorithm for scenarios typical of the US TDMA digital cellular standard IS-54
Keywords :
FIR filters; cellular radio; cochannel interference; computational complexity; digital radio; feedforward; filtering theory; intersymbol interference; land mobile radio; radiofrequency interference; telecommunication channels; telecommunication standards; time division multiple access; CCI-impaired dispersive channels; Cholesky factorization; FIR MMSE-DFE; IS-54 standard; TDMA digital cellular standard; USA; algorithm; analytical tools; colored noise; computational complexity reduction; displacement structure; fractionally spaced feedforward filters; symbol spaced feedforward filters; Autocorrelation; Bandwidth; Computational efficiency; DSL; Dispersion; Finite impulse response filter; Intersymbol interference; Least squares approximation; Radiofrequency interference; Resonance light scattering;
Journal_Title :
Signal Processing, IEEE Transactions on
