Results 121 to 130 of about 5,912 (174)
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Joint trellis coded quantization/modulation
IEEE Transactions on Communications, 1991A joint source/channel coding system constructed using trellis coded quantization (TCQ) and trellis coded modulation (TCM) is described. Identical trellises are used in the TCQ and TCM systems, and a straightforward mapping of TCQ codewords to TCM symbols is presented which guarantees that Euclidean squared distance in the channel is commensurate with ...
T R Fischer
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Multiple trellis coded modulation (MTCM)
IEEE Transactions on Communications, 1988The authors demonstrate a trellis coded modulation technique referred to as multiple trellis coded modulation (MTCM) wherein more than one channel symbol per trellis branch is transmitted. They have found simple two-state trellis codes for symmetric MPSK multiple phase-shift keying and AM modulations that can achieve 3-dB gain over uncoded modulation ...
D Divsalar, M K Simon
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Trellis coded quadrature spatial modulation
Physical Communication, 2018Abstract In this paper, a novel multiple-input multiple-output (MIMO) transmission scheme called trellis coded quadrature spatial modulation (TC-QSM), is proposed. In the proposed scheme, trellis coded modulation (TCM) principle is applied to the emerging quadrature spatial modulation (QSM) scheme, and a trellis encoder and a QSM mapper are jointly ...
Zehra Yigit +2 more
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Trellis-coded modulation with multidimensional constellations
IEEE Transactions on Information Theory, 1987Trellis-coded modulation schemes using four-, eight-, or 16 -dimensional constellations have a number of potential advantages over the usual two-dimensional schemes: a smaller constituent two-dimensional constellation, easier tolerance to phase ambiguities, and a better trade-off between complexity and coding gain.
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Punctured Trellis-Coded Quantization and Modulation
IEEE Transactions on Communications, 2006We propose a punctured trellis-coded quantization (PTCQ) scheme as the dual of a known punctured trellis-coded modulation (PTCM) scheme, and then generalize a combined trellis-coded quantization/modulation (TCQ/TCM) scheme to a combined PTCQ/PTCM scheme, with rates optimally allocated between source coding and channel coding to match the given channel ...
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Performance evaluation of trellis-coded modulation schemes
Proceedings of the IEEE, 1994A description of the algorithms to evaluate the main parameters determining the performance of a trellis-coded modulation (TCM) scheme is presented. TCM schemes are divided into classes that have an increasing degree of symmetry, so as to properly match the various algorithms to each class.
S Benedetto, M Mondin, G Montorsi
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Turbo Trellis-Coded Differential Chaotic Modulation
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018In this brief, a novel turbo trellis-coded differential chaotic modulation (TTC-DCM) system is proposed, where parallel concatenated trellis codes are combined with the ${M}$ -ary differential chaotic shift keying ( ${M}$ -ary DCSK) scheme.
Wei Hu, Lin Wang, Guanrong Chen
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On punctured trellis-coded modulation
IEEE Transactions on Information Theory, 1996Summary: Punctured convolutional codes result in some savings in the complexity of Viterbi decoders, compared to other codes of the same rate. However, in general use of the punctured structure in the decoder results in a performance loss for trellis codes, due to difficulties in assigning metrics.
Jaehyeong Kim, Gregory J. Pottie
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