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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
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
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
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
systems Trellis coded modulation, a signal modulation scheme for telecommunications McChord Field, Washington state, United States (IATA airport code: TCM)
TCM
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
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
synchronization and tracking, differential modulation and signal design, spread spectrum techniques, and trellis-coded modulation for fading channels. Most recently
Marvin_Simon
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
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
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)
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
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
Huber For contributions to coded modulation and digital subscriber line design 2006 Frank Kschischang For contributions to trellis structures, graphical models
List of fellows of IEEE Communications Society
List_of_fellows_of_IEEE_Communications_Society
Multinational research organization
high-temperature superconductivity, respectively. Other key inventions include trellis modulation, which revolutionized data transmission over telephone lines; Token
IBM_Research
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
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
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 Awad, Ehab
Spatial_multiplexing
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
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
Surname or Lastname
English
English : metronymic from the medieval personal name Till.Jewish (eastern Ashkenazic) : variant spelling of Tilles.
Boy/Male
American, Anglo, Australian, British, English, Irish
Cushion; Helpful; Pillow
Girl/Female
Latin
Earth.
Girl/Female
Australian, Spanish
Star
Surname or Lastname
English
English : variant spelling of Coad.
Girl/Female
German, Greek
Light
Girl/Female
Australian, French
Woodland
Boy/Male
Latin
Horn.
Boy/Male
Biblical Hebrew
To sustain, hold or lift up.
Boy/Male
British, English
Surname and Place-name; Treves
Biblical
to sustain, hold or lift up
Girl/Female
Tamil
Code
Girl/Female
American, Australian, British, English, Irish
Cushion; Helpful
Male
English
Anglicized form of Hebrew Owded, ODED means "restorer." In the bible, this is the name of the father of Azariah, and the name of a prophet who lived in the time of King Ahaz.
Surname or Lastname
English
English : habitational name from a place in Suffolk, named in Old English with mylenas, plural of mylen ‘mill’.Scottish and northern Irish (of Scottish origin) : from an Anglicized form of the Gaelic personal name Maol Ãosa ‘devotee of Jesus’.Greek : variant of Melis.Dutch : unexplained.Latvian : nickname from mells ‘black’.
Surname or Lastname
English
English : metonymic occupational name for a maker of purses and bags, from Middle English cod ‘bag’.English : nickname for a man noted for his apparent sexual prowess, from cod(piece), in Tudor times the garment worn prominently over the male genitals.English : from Middle English cod, the fish (of uncertain origin, perhaps a transferred use of 1), applied as a metonymic occupational name for a fisherman or seller of these fish, or possibly as a nickname for someone thought to resemble the fish in some way.Irish : variant of Cody.Irish (County Wexford) : from the Anglo-Saxon personal name Cod.
Boy/Male
Welsh
Dwells in the woods.
Boy/Male
Irish American English
Helpful.
Boy/Male
Arabic, Muslim
Rockstar
Girl/Female
Hindu
Code
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
Girl/Female
Indian, Punjabi, Sikh
Wise; Wishes
Female
English
English altered form of Russian Natasha, NATISHA means "birthday," or in Church Latin "Christmas day."
Girl/Female
American, British, Christian, English, Latin
Venerable; A Diminutive of Augusta; Venerable and Month of August Augustina; Augustine; Worthy of Respect; Revered
Boy/Male
American, Anglo, British, English
Lives by the Beech Tree; Place Name
Girl/Female
Hindu
Content
Girl/Female
Arabic, French, German, Indian, Muslim, Tamil, Turkish
The Prophet Mohammad's Daughter; Daughter of Muhammad; Abstainer; Form of Fatima
Boy/Male
Hindu, Indian
Coming Generation of Father
Girl/Female
Arabic, Muslim, Sindhi
Fragrance
Female
Polish
Feminine form of Polish RadosÅ‚aw, RADOSÅAWA means "happy glory."
Girl/Female
Indian
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
TRELLIS CODED-MODULATION
n.
The American plant Trollius laxus.
a.
Relating to a codex, or a code.
imp. & p. p.
of Coy
a.
With hanging head; hence, dispirited; dejected; cowed.
n.
A codifier; a maker of codes.
a.
Striped or ribbed with cords; as, cloth with a corded surface.
n.
A collection or digest of laws; a code.
imp. & p. p.
of Bode
n.
A structure or frame of crossbarred work, or latticework, used for various purposes, as for screens or for supporting plants.
a.
Having a trellis or trellises.
n.
Any system of rules or regulations relating to one subject; as, the medical code, a system of rules for the regulation of the professional conduct of physicians; the naval code, a system of rules for making communications at sea means of signals.
n.
One who trolls.
n.
A frame for trailing plants; a trellis.
imp. & p. p.
of Cow
imp. & p. p.
of Cede
n.
The globeflower (Trollius).
n.
Latticework for supporting vines, etc.; an espalier; a trellis.
n. sing. & pl.
A body or code of laws.
imp. & p. p.
of Cove
pl.
of Codex