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Modulation scheme in telecommunication
Trellis coded modulation (TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines
Trellis_coded_modulation
Modulation format used in HDSL2 and G.SHDSL
Trellis-coded pulse-amplitude modulation (TC-PAM) is the modulation format that is used in HDSL2 and G.SHDSL. It is a variant of trellis coded modulation
TC-PAM
Process of varying one or more properties of a periodic waveform
multiplexing (OFDM) modulation Discrete multitone (DMT), including adaptive modulation and bit-loading Wavelet modulation Trellis coded modulation (TCM), also
Signal_modulation
synchronization and tracking, differential modulation and signal design, spread spectrum techniques, and trellis-coded modulation for fading channels. Most recently
Marvin_Simon
Austrian communications engineer
contributions to the theory of data transmission, he invented trellis coded modulation. Ungerboeck joined Broadcom in 1998, as Technical Director for
Gottfried_Ungerboeck
Regular graph used in coding theory
Nudd, G. R. (1993). The viterbi algorithm. University of Warwick, Department of Computer Science. Trellis modulation Trellis quantization v t e v t e
Trellis_(graph)
Standard for computer networking over a cable television system
with trellis coded modulation in S-CDMA mode (with an effective spectral efficiency equivalent to that of 64-QAM). DOCSIS 3.1 supports data modulations from
DOCSIS
Topics referred to by the same term
allowing them to be easily compared Trellis modulation or trellis coded modulation, in telecommunications Trellis quantization, a method of improving
Trellis_(disambiguation)
Type of error-correcting code using convolution
'convolutional coding'. The sliding nature of the convolutional codes facilitates trellis decoding using a time-invariant trellis. Time invariant trellis decoding
Convolutional_code
Topics referred to by the same term
Consumer Marketing Corporation, a division of Toshiba Trellis coded modulation, a signal modulation scheme for telecommunications The Computer Museum, Boston
TCM
Class of forward error correction codes
D.; Dolinar, S.; Pollara, E (2000). "Serial Turbo Trellis Coded Modulation with Rate-1 Inner Code" (PDF). Globecom '00 - IEEE. Global Telecommunications
Serial concatenated convolutional codes
Serial_concatenated_convolutional_codes
Decodes a bitstream with the Viterbi algorithm
communications, PSK31 digital mode for amateur radio. Decoding trellis-coded modulation (TCM), the technique used in telephone-line modems to squeeze high
Viterbi_decoder
Standard for Ethernet networking at a data rate of 1 gigabit per second
100BASE-TX, since 1000BASE-T uses four-dimensional trellis coded modulation (TCM) to achieve a 6 dB coding gain across the four pairs. Since autonegotiation
Gigabit_Ethernet
Defunct American fabless semiconductor company
company's acquisition in 2016 Gottfried Ungerboeck, inventor of trellis coded modulation Sophie Wilson, designer of the ARM CPU instruction set Eben Upton
Broadcom_Corporation
consultant defending IBM in private antitrust cases. Trellis-coded modulation: Trellis-coded modulation (TCM) is first used in voice-band modems to send data
History_of_IBM
Type of error correcting code
Decoding of Polar Codes, Fast SC-Based Decoding, Alternative Decoding Algorithms, Rate-Compatible Polar Codes, Polar-Coded Modulation, Performance Comparisons
Polar_code_(coding_theory)
Device that modulates an analog carrier signal to encode digital information
as tones using frequency shift keying (FSK). This was also a digital modulation technique, making this an early modem. Commercial modems largely did not
Modem
American electrical engineer and academic
used echo cancellation, fractionally spaced equalization, and trellis coded modulation. At his retirement in 2001, Gitlin was Senior VP for Communications
Richard_D._Gitlin
Modulation method used by the American ATSC digital TV standard
error correction codes. The eight signal levels are selected with the use of a trellis encoder. There are also similar modulations 2VSB, 4VSB, and 16VSB
8VSB
a Morse code transmitter combines source coding, channel coding, and line coding into one step, typically followed by an amplitude modulation step. Barcodes
Node-to-node_data_transfer
Networking protocol sublayer
data into four lanes and uses four-dimensional, five-level (quinary) trellis modulation with PAM-5 and a symbol rate of 125 MBd. 2.5GBASE-T and 5GBASE-T use
Physical_coding_sublayer
Study of the properties of codes and their fitness
linear block codes are used in many applications. For example, the syndrome-coset uniqueness property of linear block codes is used in trellis shaping, one
Coding_theory
8 carriers. Each carrier uses 46.875 Baud 4FSK or 93.75 Baud PSK using Trellis Coded Modulation with 4, 8, or 16 phases. Shortwave Radioteletype PACTOR ARRL: New
Winmor
Improved efficiency encoding
H. (2005-01-28). Precoding and Signal Shaping for Digital Transmission. John Wiley & Sons. ISBN 9780471727729. Trellis shaping for modulation systems
Shaping_codes
Telecommunications protocol
published in June 1995, specified trellis coded carrierless amplitude/phase modulation (CAP) as an alternative modulation scheme, running on two pairs at
High-bit-rate digital subscriber line
High-bit-rate_digital_subscriber_line
Digital television standard
QAM is a digital television standard using quadrature amplitude modulation. It is the format by which digital cable channels are encoded and transmitted
QAM_(television)
provide. As opposed to other DSL technologies, SHDSL employs trellis-coded pulse-amplitude modulation (TC-PAM). As a baseband transmission scheme, TC-PAM operates
Single-pair high-speed digital subscriber line
Single-pair_high-speed_digital_subscriber_line
Problem in information theory and communication
convolution code and set-partitioning rules as in Trellis modulation, as well as lattice code based DSC. After this, embedded trellis code was proposed
Distributed_source_coding
WiFi option
space–time codes (STCs) achieve significant error rate improvements over single-antenna systems. Their original scheme was based on trellis codes but the
Space–time_block_code
American mobile digital TV standard
transmitted within the SMT-Table. Most of the information is coded in binary, but some is coded in the original ASCII text format. The SMT-Table combines
ATSC-M/H
the Slepian–Wolf coding limits for distributed source coding 1976 – Gottfried Ungerboeck gives the first paper on trellis modulation; a more detailed
Timeline of information theory
Timeline_of_information_theory
Line code used in Ethernet technologies
possible by switching from PAM-2 to PAM-4 or Ensemble NRZ coding. Multi-level Trellis modulation combined with FEC 100 Gigabit Ethernet 10G-EPON, 10 Gbit/s
64b/66b_encoding
Family of technologies that are used to transmit digital data over telephone lines
multitone modulation (DMT), the most common kind, also known as Orthogonal frequency-division multiplexing (OFDM) Trellis-coded pulse-amplitude modulation (TC-PAM)
Digital_subscriber_line
ITU-T Recommendation
growth. The forward error correction (FEC) scheme using trellis coding and Reed–Solomon coding is similar to that of VDSL2. FEC does not provide good protection
G.fast
Japanese standard for digital television and radio
differ mainly in the modulations used, due to the requirements of different frequency bands. The 12 GHz band ISDB-S uses PSK modulation, 2.6 GHz band digital
ISDB
Discontinued magnetic tape data storage format
speed (MB/s) 12 18 24 24 Encoding Extended TC-PRML Turbo-coded modulation Turbo-coded modulation Tape length (m) 230 246 246 Tape thickness (μm) 5.3 4.8
Advanced_Intelligent_Tape
ITU standard for ADSL using discrete multitone modulation
be used if Trellis encoding is used at both ends. Interleaving can also increase the robustness of the line but increases latency. Modulation is the overlaying
G.992.1
Coding (AAC). In 1976, Gottfried Ungerboeck gives the first paper on trellis modulation; a more detailed exposition in 1982 leads to a raising of analogue
History_of_information_theory
1990s American digital television standard consortium
transmission approaches included QAM, Spectrally-Shaped QAM, 6 VSB (with trellis code) and 4/2 VSB. COFDM had been proposed by third parties, but was rejected
Grand_Alliance_(HDTV)
Algorithm
2001. Li, Huan-Bang; Kohno, Ryuji (2006). An Efficient Code Structure of Block Coded Modulations with Iterative Viterbi Decoding Algorithm. 3rd International
Iterative_Viterbi_decoding
16-bit microcontroller
to perform complex algorithms needed for forward error correction, trellis modulation, and echo cancellation in the modem. The second-generation SatisFAXtion
Intel_80186
Multinational research organization
high-temperature superconductivity, respectively. Other key inventions include trellis modulation, which revolutionized data transmission over telephone lines; Token
IBM_Research
MIMO wireless transmission technique
smaller than the number of transmit antennas. 3G MIMO Space–time code Space–time trellis code WiMAX MIMO Fiber-optic communication Multiplexing "Inside Petal:
Spatial_multiplexing
factotum, subtotal, total, totality, totipotent trēs tri- three trammel, trellis, trey, triangle, triceps, triennial, trillion, triolet, triple, triplet
List of Latin words with English derivatives
List_of_Latin_words_with_English_derivatives
applications of error control coding devices 1992 Hideki Imai For contributions to the theory of coded modulation and two-dimensional codes 1992 Michael G. Pecht
List of fellows of IEEE Communications Society
List_of_fellows_of_IEEE_Communications_Society
Converts an electrical audio signal into a corresponding sound
output, reduced harmonic distortion, and a reduction in the inductance modulation that typically accompanies large voice coil excursions. On the other hand
Loudspeaker
Form of single-frequency network
(such as the position of transmitted frame sync, or the initial state of trellis encoding devices) would also have to be matched exactly between every synchronized
Distributed transmission system
Distributed_transmission_system
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