Results 101 to 110 of about 5,976 (210)

TCM, TTCM, BICM and BICM-ID Assisted MMSE Multi-User Detected SDMA-OFDM Using Walsh-Hadamard Spreading

open access: yes, 2004
Space Division Multiple Access (SDMA) aided Orthogonal Frequency Division Multiplexing (OFDM) systems assisted by efficient Multi-User Detection (MUD) techniques have recently attracted intensive research interests. Forward Error Correction (FEC) schemes
Hanzo, L., Jiang, M., Ng, S. X.
core  

An improved algorithm for evaluating trellis phase codes [PDF]

open access: yes
A method is described for evaluating the minimum distance parameters of trellis phase codes, including CPFSK, partial response FM, and more importantly, coded CPM (continuous phase modulation) schemes. The algorithm provides dramatically faster execution
Mulligan, M. G., Wilson, S. G.
core   +1 more source

Performance Evaluation of Parallel Concatenated Chaos Coded Modulations

open access: yesJournal of Communications Software and Systems, 2008
In this article we study the performance of a class of parallel concatenated encoders similar to a turbo trellis coded modulation, but where the constituent encoders are chaos coded modulators.
Francisco J. Escribano   +2 more
doaj  

Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]

open access: yesSensors (Basel), 2023
Al-Dulaimi OMK   +3 more
europepmc   +1 more source

Concatenated space-time block coding with asymmetric MPSK TCM

open access: yesTongxin xuebao, 2010
The field of concatenated space-time block coding (inner) with trellis coded modulation (outer) has recently attracted interest as a means of jointly considering the error correction coding gain and diversity gain possible without bandwidth expansion and
AO Jun1   +3 more
doaj   +2 more sources

Serial turbo trellis coded modulation using a serially concatenated coder [PDF]

open access: yes, 2010
Serial concatenated trellis coded modulation (SCTCM) includes an outer coder, an interleaver, a recursive inner coder and a mapping element. The outer coder receives data to be coded and produces outer coded data. The interleaver permutes the outer coded
Divsalar, Dariush   +2 more
core   +2 more sources

Design of SCMA codebook based on chaotic signal and system performance analysis

open access: yesTongxin xuebao, 2019
Sparse code multiple access (SCMA) technology is one of the multiple access technology schemes for the new generation of 5G.In order to solve the transmission requirement of massive users,the logistic chaos sequence was proposed instead of the random ...
Geng ZHAO, Yanyan MA, Yingjie MA
doaj   +2 more sources

Turbo-Detected Unequal Protection MPEG-4 Audio Transceiver Using Convolutional Codes, Trellis Coded Modulation and Space-Time Trellis Coding

open access: yes, 2005
A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time Trellis Coding (STTC), Trellis Coded Modulation (TCM ...
Hanzo, L., Ng, S.X., Othman, N.S.
core  

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