DocumentCode :
292774
Title :
Reduced state Viterbi receivers for digital mobile communications
Author :
Herscovici, B. ; Gulak, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Volume :
2
fYear :
1993
fDate :
11-14 Oct 1993
Firstpage :
561
Abstract :
In the context of the new North American TDMA standard for digital cellular, the problem the authors seek to address is the design of an adaptive detector and differential phase decoder. The technique used in the design is that of maximum likelihood sequence estimation, implemented by use of the Viterbi algorithm. Two solutions are proposed, the shifted Viterbi receiver and the differential Viterbi receiver. Each can be implemented using current hardware technology, with the tradeoffs presented. Both architectures simplify the signal constellation at the input of the Viterbi detector. The behavior of the shifted Viterbi receiver and the differential Viterbi receiver was simulated under various SNR, with or without fading, with pseudorandom or correlated data patterns and with various LMS algorithm gain
Keywords :
adaptive signal detection; cellular radio; data communication; digital radio; estimation theory; fading; land mobile radio; least mean squares methods; maximum likelihood estimation; military communication; telecommunication standards; time division multiple access; LMS algorithm gain; North American TDMA standard; adaptive detector; correlated data patterns; design; differential Viterbi receiver; digital mobile communications; fading; maximum likelihood sequence estimation; pseudorandom data patterns; reduced state Viterbi receivers; shifted Viterbi receiver; signal constellation; tradeoffs; Algorithm design and analysis; Context; Detectors; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Mobile communication; Phase detection; Time division multiple access; Viterbi algorithm;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 1993. MILCOM '93. Conference record. Communications on the Move., IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-0953-7
Type :
conf
DOI :
10.1109/MILCOM.1993.408605
Filename :
408605
Link To Document :
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