Title :
Adaptive soft-decision feedback equalization for indoor radio communications using trellis-coded CPFSK
Author :
Zhuang, W. ; Goud, P.A. ; Krzymien, W.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
Abstract :
In this paper, adaptive channel equalization is investigated in order to reduce the bit error rate of trellis-coded continuous-phase frequency shift keying (CPFSK) in an indoor radio environment. A new equalizer structure is proposed, which makes use of fractionally spaced soft-decision signal samples instead of symbol-spaced hard decisions on transmitted symbols in the decision feedback loop, in order to remove the intersymbol interference (ISI) resulting from the frequency-selective fading channel
Keywords :
Rayleigh channels; adaptive equalisers; continuous phase modulation; decision feedback equalisers; fading; frequency shift keying; indoor radio; intersymbol interference; trellis coded modulation; adaptive channel equalization; adaptive soft-decision feedback equalization; bit error rate; continuous-phase frequency shift keying; decision feedback loop; equalizer structure; fractionally spaced soft-decision signal samples; frequency-selective fading channel; indoor radio communications; intersymbol interference; symbol-spaced hard decisions; transmitted symbols; trellis-coded CPFSK; Adaptive equalizers; Baseband; Bit error rate; Decision feedback equalizers; Delay; Digital modulation; Envelope detectors; Indoor radio communication; Intersymbol interference; Radio frequency;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345317
