Trellis-coded multidimensional phase modulation
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TLDR
A systematic approach to partitioning L*MPSK signal sets that is based on block coding is used and an encoder system approach is developed that incorporates the design of a differential precoder, a systematic convolutional encoder, and a signal set mapper.Abstract:
A 2L-dimensional multiple phase-shift keyed (L*MPSK) signal set is obtained by forming the Cartesian product of L two-dimensional MPSK signal sets. A systematic approach to partitioning L*MPSK signal sets that is based on block coding is used. An encoder system approach is developed. It incorporates the design of a differential precoder, a systematic convolutional encoder, and a signal set mapper. Trellis-coded L*4PSK, L*8PSK, and L*16PSK modulation schemes are found for 1 >read more
Citations
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Proceedings ArticleDOI
Effects of improving phase transparency on the distance spectrum of trellis codes
H.A. Rajab,M.D. Yucel +1 more
TL;DR: The distance spectra and performance bounds for 4 and 8-state 32 AMPM trellis codes due to Ungerboeck (1982) and Wei (1984) are computed and it is seen that not all mappings by set partitioning yield equivalentdistance spectra although they have the same minimum distance.
Proceedings ArticleDOI
On the performance of a novel synchronous trellis-coded CDMA system for wireless communications
S. Choe,Costas N. Georghiades +1 more
TL;DR: A novel modulation signal set defined over a signal space that consists of L Euclidean signal planes, and the synchronous trellis-coded CDMA system based on it is introduced, which could be highly adaptable to the dynamic channel conditions.
Proceedings ArticleDOI
Rotationally-Invariant Multi-Dimensional Trellis Coded Modulation for Optical Transmission Systems
TL;DR: Numerical simulations show that multi-D TCM combined with simple hard-dec decision forward error correction (HD-FEC) codes are of practical interest, as they can provide a better trade-off between complexity and performance, compared to soft-decision (SD-)FEC alternatives.
Proceedings ArticleDOI
Source-channel optimized trellis codes for bi-tonal image transmission over AWGN channels
J.M. Kroll,N. Phamdo +1 more
TL;DR: This work first model the image as a binary asymmetric Markov source and then design source-channel optimized (SCO) trellis codes for the BAMS and AWGN channel, showing the SCO codes to be superior to Ungerboeck's (1982) codes by approximately 1.1 dB.
Journal ArticleDOI
Impact of imperfect pilot-symbol-aided channel estimation on TCM performance over Rayleigh fading channels
TL;DR: A simple method of approximating BER performance of a mobile communication system using trellis-coded modulation and realistic and thus imperfect channel estimation and a modified approach to exact pairwise error probability (PEP) calculation is presented.
References
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Journal ArticleDOI
Channel coding with multilevel/phase signals
TL;DR: A coding technique is described which improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth by channel coding with expanded sets of multilevel/phase signals in a manner which increases free Euclidean distance.
Journal ArticleDOI
A new multilevel coding method using error-correcting codes
Hideki Imai,S. Hirakawa +1 more
TL;DR: A new multilevel coding method that uses several error-correcting codes that makes effective use of soft-decisions to improve the performance of decoding and is superior to other multileVEL coding systems.
Journal ArticleDOI
Trellis-coded modulation with redundant signal sets Part I: Introduction
TL;DR: An introduction into TCM is given, reasons for the development of TCM are reviewed, and examples of simple TCM schemes are discussed.
Journal ArticleDOI
Trellis-coded modulation with redundant signal sets Part II: State of the art
TL;DR: The effects of carrier-phase offset in carrier-modulated TCM systems are discussed, and recent advances in TCM schemes that use signal sets defined in more than two dimensions are described, and other work related to trellis-coded modulation is mentioned.
Journal ArticleDOI
Efficient Modulation for Band-Limited Channels
TL;DR: This paper attempts to present a comprehensive tutorial survey of the development of efficient modulation techniques for bandlimited channels, such as telephone channels, with principal emphasis on coded modulation techniques, in which there is an explosion of current interest.