trellis coded modulation codes
Turbo Detected Unequal Protection MPEG 4 Wireless Video Telephony using Trellis Coded Modulation and Space Time Trellis Coding
... Abstract – A jointly optimised turbo transceiver capa- ble of providing unequal error protection is proposed for MPEG-4 aided wireless video telephony. The transceiver advocated consists of Space-Time Trellis ...
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Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems
... turbo codes often have a low coding rate and hence require considerable band- width ...turbo codes. In order to equip the family of binary turbo codes with a higher spectral efficiency, BICM-based ...
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Turbo Detection of Space time Trellis Coded Constant Bit Rate Vector Quantised Videophone System using Reversible Variable Length Codes, Convolutional Codes and Turbo Codes
... In order to improve the achievable videophone link qual- ity and to approach the capacity of the CBR videophone sch- eme, we propose systems that amalgamate STTC with the stated RVLC, TC and CC codecs. A STTC scheme has ...
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Turbo detected unequal protection audio and speech transceivers using serially concatenated convolutional codes, trellis coded modulation and space time trellis coding
... Similarly, bit error sensitivity investigations were performed in the same way, as described in the previous section. Figure 3 shows the error sensitivity of the various bits of the MPEG-4 TwinVQ codec for a bitrate of ...
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M PSK Cooperative Trellis Codes for Coordinate Interleaved Coded Cooperation
... mensional modulation schemes, achievable diversity order is the minimum number of distinct coordinates of distinct symbol pairs in the ...the modulation diversity order to ...maximum modulation ...
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Iteratively Decoded Irregular Variable Length Coding and Trellis Coded Modulation
... As described in Section 1, the SBIrVLC and BBIrVLC sch- emes may be constructed by employing a number of VLC codebooks having different coding rates, each of which en- codes an appropriately chosen fraction of the ...
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Iteratively Decoded Irregular Variable Length Coding and Trellis Coded Modulation
... Irregular Convolutional Coding (IrCC) [1] has been proposed for employment in iteratively decoded joint channel coding and pre-coded equalisation [2]. The IrCC scheme amalgamates a number of component ...
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Improving Capacity in LMDS Networks Using Trellis Coded Modulation
... In this paper we propose a new scheme to increase the capac- ity of interference-limited LMDS networks. We suggest the use of two di ff erent TCM schemes in cochannel cells in or- der to mitigate the e ff ect of ...
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Turbo Detected Unequal Protection MPEG 4 Wireless Video Telephony using Multi Level Coding, Trellis Coded Modulation and Space Time Trellis Coding
... MLC scheme by employing two different code-rate maximal minimum distance non-systematic convolutional codes (NSCs) [9] or recursive systematic convolutional codes (RSCs) [1, 2] as the constituent ...
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Space Time Turbo Trellis Coded Modulation for Wireless Data Communications
... turbo trellis mod- ulation (TCM) scheme with the new recursive STTCs as constituent ...constituent codes enables the full benefit of interleaver gain and itera- tive ...turbo trellis encoder consists ...
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Improved Super Orthogonal Trellis Coded Spatial Modulation Using STBC CSM
... Spatial Modulation for trellis coding (SM-TC) has been introduced in ...block coded Spa- tial Modulation to construct super orthogonal trellis coded spatial modulation ...
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Iterative Channel Coded Physical Layer Network Coding on Impulsive Noise Channels
... bit-interleaved coded modulation with iterative decoding (BICM-ID) and turbo codes on the conventional two-way relay communications is evaluated through simulation results for different mixtures, α, ...
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Concatenated LDPC-TCM coding for reliable storage in multi-level flash memories
... concatenates trellis coded modulation (TCM) with an outer low-density parity-check (LDPC) code for multi-level per cell (MLC) flash ...based codes, such as Bose-Chaudhuri- Hocquenghem (BCH) ...
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On the Design of Turbo Trellis Coded Modulation schemes using Symbol based EXIT Charts
... The generator polynomial search loop consisting of Blocks 2, 3 and 4 is the main part of the algorithm, where the EXIT chart of each tentatively tested generator polynomial invok- ing a new polynomial g r from the full ...
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Iterative Joint Video and Channel Decoding in a Trellis Based Vector Quantized Video Codec and Trellis Coded Modulation Aided Wireless Videophone
... RVLC codes with a minimum free-distance of 2 in the VQ codebook was found to yield a VQ decoder EXIT characteristic that achieves unity extrinsic mutual information I E 2 for unity a priori mu- tual information I ...
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Nested turbo codes for the costa problem
... lattice codes and propose nested turbo codes using turbo-like trellis-coded quantization (TCQ) for source coding and turbo trellis-coded modulation (TTCM) for channel ...
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A Novel Spatial Modulation Scheme Using Trellis Code
... correcting codes is bandwidth ...correcting codes is ...called trellis coded modulation can be ...and modulation functions of the communication system, to achieve better gains in ...
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Turbo Coded Adaptive Modulation Versus Space Time Trellis Codes for Transmission over Dispersive Channels
... space–time trellis and block codes was investigated by numerous researchers [30]–[34] when communicating over narrowband Rayleigh fading ...space–time codes was then also extended to the class of ...
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Near Capacity Turbo Trellis Coded Modulation Design
... Trellis Coded Modulation (TCM) [1] was originally proposed for transmission over Additive White Gaussian Noise (AWGN) chan- nels, but later it was further developed for applications in mobile ...
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Turbo Detected Unequal Protection MPEG 4 Audio Transceiver Using Convolutional Codes, Trellis Coded Modulation and Space Time Trellis Coding
... TCM-2NSC-1 requires E b /N 0 = 3 dB, when having an audio SegSNR in excess of 16 dB after the fourth turbo iteration. Hence the audio SegSNR performance of STTC-TCM-2NSC- 1 is 0.5 dB poorer than that of STTC-TCM-2NSC-2 ...
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