Title :
Performance of trellis coded 8-DPSK in mobile radio channels
Author :
Badawy, El Sayed El ; Fahmy, Eman
Author_Institution :
Dept. of Electr. Eng., Alexandria Univ., Egypt
Abstract :
The performance of a four-state trellis-coded differential eight-phase shift keying (8-DPSK) technique in fast Rayleigh fading characterizing realistic mobile radio channels is studied. A combination of one-bit and two-bit differential detectors is used at the receiving end. The Viterbi decoder is used to determine the most likely coded signal sequence directly from the unquantized channel outputs. The four-state trellis-coded modulation (TCM) schemes using 8-DPSK can improve the bit error rate
Keywords :
decoding; encoding; error statistics; mobile radio systems; phase shift keying; BER; Viterbi decoder; bit error rate; fast Rayleigh fading; four-state trellis-coded differential eight-phase shift keying; mobile radio channels; trellis coded 8-DPSK; two-bit differential detectors; Bandwidth; Convolution; Convolutional codes; Decoding; Euclidean distance; Finite impulse response filter; Land mobile radio; Modulation coding; Rayleigh channels; Viterbi algorithm;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160688
