Title :
Concatenation of MLSE equalizer and Viterbi decoder for TDMA cellular systems
Author :
Park, Jong Il ; Wicker, Stephen B. ; Owen, Henry L.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
The concatenation of a maximum likelihood sequence estimation (MLSE) equalizer and a Viterbi decoder is a powerful means for improving the performance of mobile communication system receivers. The best system performance is obtained when the Viterbi algorithm is used with soft decisions. The soft output MLSE equalizer enables the use of soft decision Viterbi decoding. This paper investigates the performance of a new time division multiple access (TDMA) cellular system that employs a soft output MLSE equalizer and a Viterbi decoder. Simulation results are presented for multipath Rayleigh fading channels having various delay profiles
Keywords :
Rayleigh channels; Viterbi decoding; cellular radio; equalisers; land mobile radio; maximum likelihood estimation; multipath channels; radio receivers; sequential estimation; time division multiple access; MLSE equalizer; TDMA cellular systems; Viterbi algorithm; Viterbi decoder; delay profiles; maximum likelihood sequence estimation equalizer; mobile communication system receivers; multipath Rayleigh fading channels; performance; soft decisions; time division multiple access; Convolutional codes; Equalizers; Fading; Intersymbol interference; Maximum likelihood decoding; Maximum likelihood estimation; Mobile communication; Receivers; Time division multiple access; Viterbi algorithm;
Conference_Titel :
Military Communications Conference, 1996. MILCOM '96, Conference Proceedings, IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-3682-8
DOI :
10.1109/MILCOM.1996.571338
