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
TCM coding of PPM based modulations for infrared WLAN's impaired by ISI
Rui Alves,Atilio Gameiro +1 more
TL;DR: The best code search and results are described, which demonstrate that, even with trellis codes of moderate complexity, non-negligible coding gains can be obtained without bandwidth expansion.
Proceedings ArticleDOI
New trellis codes for Rayleigh fading channels
M.C. Gill,T.C. Giles +1 more
TL;DR: This work challenges the usual assumption that in the construction of good trellis codes the number of constellation points should only be doubled and leads to codes which significantly outperform previously published codes without increasing the decoding complexity.
Journal ArticleDOI
Spread Spectrum Codes for Continuous-Phase Modulated Systems
TL;DR: A simple variant of repetition coding involving pseudorandom code words, based on direct-sequence spread spectrum methods, that preserves the spectral density of the encoded signal in order to maintain resistance to narrowband interference is discussed.
Signal mapping designs for bit-interleaved coded modulation with iterative decoding (BICM-ID)
TL;DR: This thesis concentrates on signal mapping designs for BICM-ID systems employing the quadrature phase shift keying (QPSK) constellation and analytically derived criteria are used to find good mappings for various twodimensional 8-ary constellations.
Journal ArticleDOI
Low complexity, high performance and bandwidth efficient concatenated coded 8-PSK schemes for reliable data communications
S. Rajpal,Dojun Rhee,Shu Lin +2 more
TL;DR: Analysis and simulation results show that nested concatenated coded 8-PSK modulation schemes achieve large coding gains over uncoded reference systems for bit-error-rates below 10/sup -3/, with reduced decoding complexity.
References
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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.