Title :
Soft-decision output at sequential detection algorithms in digital mobile radio systems
Author :
Zimmermann, Gerd ; Rupprecht, Werner
Author_Institution :
Inst. of Commun. Eng., Kaiserslautern Univ., Germany
Abstract :
To improve the performance of the channel decoding in receivers for digital mobile radio systems the detector should be able to deliver reliability information about the symbol decisions (soft-decision). This paper is concerned with procedures which allow a soft-decision output at sequential detection algorithms. Simulation results obtained with these algorithms for the GSM system show the achievable gain over hard-decision detectors and allow a comparison to the more complex Soft-Output Viterbi-algorithm
Keywords :
cellular radio; digital radio; land mobile radio; radio receivers; radiowave propagation; sequential decoding; signal detection; telecommunication channels; GSM system; channel decoding; digital mobile radio systems; hard-decision detectors; receivers; reliability information; sequential detection algorithms; simulation results; soft-decision output; soft-output Viterbi algorithm; symbol decisions; Data communication; Detection algorithms; Detectors; Fading; GSM; Land mobile radio; Maximum likelihood decoding; Maximum likelihood estimation; Receivers; Speech;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345118
