Results 11 to 20 of about 2,563 (249)

Space-Time Turbo Coded Modulation: Design and Applications [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
A design method for recursive space-time trellis codes and parallel-concatenated space-time turbo coded modulation is proposed that can be applied to an arbitrary existing space-time trellis code.
Tujkovic Djordje   +2 more
doaj   +3 more sources

Bandwidth-efficient and reliable communication in smart grid systems for modern energy networks using Trellis and Turbo Trellis Coded Modulation [PDF]

open access: yesScientific Reports
Smart Grids rely on robust communication infrastructures to monitor, control, and stabilize information in real time across geographically distributed energy resources. Trellis Coded Modulation (TCM) is a well-established technique for improving spectral
Rna Ghallab   +3 more
doaj   +2 more sources

Distributed Turbo Trellis Coded Modulation for Cooperative Communications [PDF]

open access: yes2009 IEEE International Conference on Communications, 2009
In this contribution, we propose a Distributed Turbo Trellis Coded Modulation (DTTCM) scheme for cooperative communications. The DTTCM scheme is designed based on its decoding convergence with the aid of non-binary Extrinsic Information Transfer (EXIT) charts. The source node transmits TTCM symbols to both the relay and the destination nodes during the
Soon Xin Ng   +2 more
openaire   +2 more sources

Turbo coded modulation for wireless communications with antenna diversity

open access: yesJournal of Communications and Networks, 2000
We introduce turbo coded modulation for wireless communication systems with transmit and receive antenna diversity. We describe a simple way of applying turbo coded modulation to multiple antenna systems. We present examples to illustrate the performance of the turbo coded modulation scheme and observe significant performance gains over the ...
Tolga M Duman
exaly   +2 more sources

An Efficient Application of Turbo Coding for OFDM In-Phase/Quadrature Index Modulation

open access: yesIEEE Access, 2023
We present a method to efficiently apply turbo coding to OFDM in-phase/quadrature index modulation (OFDM-IQ-IM) for both cases of presence and absence of puncturing.
Eunchul Yoon, Soonbum Kwon, Sun Yong Kim
doaj   +1 more source

Improving the performance of BICM-ID and MLC systems with different FEC codes [PDF]

open access: yesAdvances in Radio Science, 2013
In bandwidth limited communication systems, the high data rate transmission with performance close to capacity limits is achieved by applying multilevel modulation schemes in association with powerful forward error correction (FEC) coding, i.e.
T. Arafa, W. Sauer-Greff, R. Urbansky
doaj   +1 more source

Joint source and turbo trellis coded hierarchical modulation for context-aware medical image transmission [PDF]

open access: yes, 2013
An iterative Joint Source and Turbo Trellis Coded Hierarchical Modulation is introduced for robust context-aware medical image transmission. Lossless source compression as well as Quality of Service (QoS) might be considered as the main constraints in ...
Abdulah Jeza Aljohani   +7 more
core   +1 more source

Turbo Coded OFDM Combined with MIMO Antennas Based on Matched Interleaver for Coded-Cooperative Wireless Communication

open access: yesInformation, 2017
A turbo coded cooperative orthogonal frequency division multiplexing (OFDM) with multiple-input multiple-output (MIMO) antennas scheme is considered, and its performance over a fast Rayleigh fading channel is evaluated.
Rahim Umar, Fengfan Yang, Shoaib Mughal
doaj   +1 more source

Coded modulation scheme employing turbo codes

open access: yesElectronics Letters, 1995
The authors present a turbo coding scheme for bandwidth-efficient modulation that outperforms turbo coding with Gray mapping by employing Ungerboeck codes as component codes. The scheme can be decoded iteratively and achieves very good bit error rates at low signal to noise ratios after a small number of iterations. 8PSK is used as an example, although
Robertson, P., Wörz, T.
openaire   +3 more sources

Nonlinear Turbo Codes for Higher-Order Modulations [PDF]

open access: yes2008 IEEE International Conference on Communications, 2008
Parallel concatenated trellis coded modulation (PC- TCM) has been traditionally designed using parallel concatenated convolutional codes with a bits-to-symbol mapper. However, this paper shows that for higher-order modulations using linear codes is too restrictive.
Miguel Griot   +2 more
openaire   +1 more source

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