trellis coded modulation research papers
RESEARCH PAPERS

trellis coded modulation research papers




Quadrature amplitude modulation: From basics to adaptive trellis-coded, turbo-equalised and space-time coded OFDM, CDMA and MC-CDMA systems
free download

An important accomplishment of information theory is the determination of the channel capacity, C, which quantifies the maximum achievable transmission rate, C*, of a system communicating over a bandlimited channel, while maintaining an arbitrarily low 

10Gb/s PMD using PAM-5 trellis coded modulation
free download

If its input is, the block forces to the interval by adding with. Similarly, if forces to fall in the same interval by adding with. Notice that this is precisely the behavior of the two's complement representation of a number when it overflows a register whose word length 

On active distances for nonlinear trellis coded modulation
free download

ABSTRACT Active distances are of particular im-portance for concatenated coding schemes. They were introduced for linear binary convolutional codes. In this paper we generalize the definition of the active distances to trellis coded modulation. Hence, the family of active 

On the performance of trellis coded spatial modulation
free download

ABSTRACT Trellis coded modulation (TCM) is a well known scheme that applies mapping by set partitioning. The key idea is to group the constellation symbols into sets with each set having the maximum free distance between its symbols. In this paper, a similar approach 

A cross-correlated trellis-coded quadrature modulation representation of MIL-STD shaped offset quadrature phase-shift keying
free download

We show that MIL-STD shaped offset quadrature phase-shift keying (SOQPSK), a highly bandwidth-efficient constant-envelope modulation, can be represented in the form of a cross- correlated trellis-coded quadrature modulation, a generic structure containing both 

Adaptive trellis-coded modulation with imperfect channel state information at the receiver and transmitter
free download

ABSTRACT In this paper we analyze and optimize an adaptive coded modulation (ACM) scheme based on pilot-symbol-assisted trellis-coded modulation (PSAM). The pilot symbol period and the power allocation between pilot and data symbols are optimized. In the 

Application of turbo codes to trellis-coded modulation,"
free download

ABSTRACT This paper proposa a turbo coding algorithm with TCM and prsents its simulation results. This also presents it's corresponding encoder and decoder system structure. The proposed scheme achieves good bit error rate performance over an A WGN 

Receiver Structure and Performance for Trellis-Coded Pulse-Position Modulation in Optical Communication Systems
free download

This article describes a receiver structure for trellis-coded pulse-position modulation (T- PPM) for optical communication systems. Monte Carlo simulation results of the Viterbi decoding algorithm under realistic Webb modeling of the avalanche photodiode (APD)- 

Trellis coded quantization/modulation over rician fading channel
free download

ABSTRACT In this letter, bit enot prtotmane of hdtis cdd qwntimtion/ndtfutioa (f Ce/TCM) schemes oaet Ricion foding chonnel is flrdifrd bg tohing into acalwrt ttre, efets of quontization noise and lading channel pommett estimation enor. The imprtane of the 

Woven trellis coded modulation with outer warp
free download

ABSTRACT In this work we address the woven code construction which was introduced for convolutional codes and recently also for the use of continuous phase modulation as inner code. We extend the outer warp approach for the general use of trellis coded modulation 

Application of Orthogonal Frequency Division Multiplexing with Concatenated Turbo Trellis Coded Modulation for WATM
free download

ABSTRACT This paper presents the performance of a coded modulation scheme for future wireless ATM networks. Turbo trellis coded modulation (TTCM) in concatenation with the Reed Solomon (RS) code is selected for the forward error correction to achieve a bit error 

Performance of Rotated Constellation and Trellis Coded Modulation with Channel State Information Errors: MIMO Systems
free download

ABSTRACT Increasing need for high data rate transmission and reliability of communication over fading channels using multiple transmit antennas has drawn attention to high spectral efficiency modulation schemes such as Quadrature Amplitude Modulation (QAM). With the 

Adaptive trellis-coded modulation for mobile communications
free download

ABSTRACT An adaptive scheme for trellis-coded modulation of MPSK signals called adaptive trellis-coded multiple-phase-shift-keying (ATCMPSK) is proposed for Rayleigh fading channels. The adaptive scheme employs a slightly modified rate 1/2 convolutional 

Hybrid maximum-likelihood detector for trellis coded spatial modulation
free download

Most spatial modulation (SM) schemes in the literature use hard-output maximumlikelihood (ML) antenna index detection. In trellis coded spatial modulation (TCSM) scheme, the detection should be also performed for the transmitted symbol, while the sequence 

Trellis coded CPM type space-time modulation design rules for Rayleigh flat fading channel
free download

ABSTRACT A CPM type constant envelope space-time modulation is an attractive option especially for very high frequency and mobile applications due to its resistance to a nonlinear distortion. The paper analyzes the mean squared distance of the trellis coded 

Bit Geometrically Uniform Encoders and Applications to Serially Concatenated Trellis Coded Modulation
free download

 Bit Geometrically Uniform Encoders and Applications to Serially Concatenated Trellis Coded Modulation  [2] Benedetto, Divsalar, Montorsi, Pollara, Serial concatenated trellis coded modulation with iterative decoding: design and performance, Proceedings of CTMC97, pp. 

PERFORMANCE EVALUATION OF HIGH RATE SPACE TIME TRELLIS CODED MODULATIONUSING GAUSS-CHEBYSHEV QUADRATURE
free download

O Sokoya, H Xu, F Takawira (HR-STTCM) is an example of space time codes that combines the idea used in trellis coded modulation (TCM) design ie signal set expansion and set partitioning into its construction. HR-STTCM construction is based on the concatenation of an inner TCM encoder and 

TRANSMISSION WITH TURBO TRELLIS-CODED MODULATION ON RADIO CHANNEL WITH THE BANDWIDTH OF 25 kHz
free download

M SYBIS ,pwt.et.put.poznan.pl Design of telecommunication systems that operate on radio channels with the bandwidth of 25 kHz with relatively high data rate is not an easy task. Such a systems should allow to transmit either voice or digital data. In this paper, we discuss one of a few possible 

DISTANCE SPECTRA FOR TRELLIS CODED MODULATION SCHEMES ON CHANNELS WITH INTERSYMBOL INTERFERENCE
free download

S Hacimeroglu, MD Ycel ,eee.metu.edu.tr ABSTRACT The effect of intersymbol interference on distance spectra for trellis coded 8- PSK, 16-QAM and 32-AMPM modulation schemes is evaluated using the methods proposed by Schlegel. Distance spectra of 16-state 8-PSK scheme are computed for different 

Performance of turbo trellis-coded modulation (?-? ) on frequency-selective Rayleigh fading channels
free download

ABSTRACT Turbo trellis-coded modulation (T-TCM) is one of several techniques for combining turbo codes with multilevel modulation schemes to save the bandwidths of the transmission systems. TTCM has been shown to perform very well on AWGN channels, but its 

The Use of Interleaving for Reducing Radio Loss in Trellis-Coded Modulation Systems
free download

MK Simon ,ipnpr.jpl.nasa.gov In this article, it is demonstrated how the use of interleaving/deinterleaving in trelliscoded modulation (TCMj systems can reduce the SNR loss due to imperfect carrier demodulation references. Both the discrete carrier (phase-locked loop) and suppressed carrier (Costas 

Data Transmission by Trellis Coded Modulation using Convolution Codes
free download

M PAPEZ, M CICO ABSTRACT The purpose of this paper is to design Trellis Coded Modulation (TCM) system using convolution codes and Phase-Shifted Key (PSK) modulation. Convolution codes are widely used in telecommunication applications to improve the data transmission reliability 

Performance Analysis of Orthogonal Space time Block Code with Trellis Coded Modulationover Rayleigh Fading Channel
free download

S Chourasia, P Patel ,idealtechnologys.com ABSTRACT Orthogonal space time block code (OSTBC) is an attractive technique for MIMO wireless communications. They exploit full spatial diversity order and enjoy symbol-wise maximum likelihood (ML) decoding. And the trellis-coded modulation (TCM) is a 

Distance Spectra for Trellis Coded Modulation Schemes on Channels with Intersymbol Interference
free download

ABSTRACT The effect of intersymbol interference on distance spectra for trellis coded 8-PSK, 16- QAM and 32-AMPM modulation schemes is evaluated using the methods proposed by Schlegel. Distance spectra of 16-state 8-PSK scheme are computed for different 

Multiple trellis coded differential unitary space-time modulation
free download

ABSTRACT In this paper, differential unitary space-time modulation (DUSTM) is combined with multiple trellis codes. The set partitioning of a unitary space-time constellation for multiple trellis code is described, and several code constructed are provided. The computational 

BANDWIDTH-EFFICIENT TRELLIS-CODED MODULATION FOR PHASE RANDOM RAYLEIGH FADING CHANNELS
free download

ABSTRACT A bandwidth effcient modulation method for the incoherently demodulated Rayleigh fading channel is analyzed and implementation results reported. The method is based on partitioning binary expurgated modulation (BEXPERM) codes into subsets with desirable 

A novel high-speed trellis-coded modulation encoder/decoder ASIC design
free download

ABSTRACT Trellis-coded Modulation (TCM) is used in bandlimited communication systems. TCM efficiency improves coding gain by combining modulation and forward error correction coding in one process. In TCM, the bandwidth expansion is not required because it uses 

Turbo Trellis Coded Modulation (TTCM) with Imperfect Phase Reference Faz Bozulmalý Ortamlarda Turbo Kafes Kodlamalý Sistemler
free download

ON Ucan, O Osman ,ee.istanbul.edu.tr ZET Bu makalede Turbo Kafes Kodlamalý (TKK) sistemlerin AWGN ve Rician ortamlarda faz bozulmasý durumunda hata baþarýmý elde edilmiþtir. TKK yapýsý ikili Turbo modlasyonu gibidir ancak TKK ok boyutludur. Turbo kodlamanýn Kafes Kodlama ile 

Trellis Coded Modulation Schemes for Underwater Acoustic Communications
free download

LVSBS Rajan, R Bahl ,ece.iisc.ernet.in ABSTRACT Bandwidth efficient phase-coherent modulation techniques such as M-PSK have been made possible over underwater acoustic channels in recent years. It is well known that the error probability of the usual linear modulations such as M-PSK over fading channels 

Adaptive Trellis-Coded Modulation with Imperfect CSI at Receiver and Transmitter, and Receive Antenna Diversity
free download

DV Duong, GE Øien, KJ Hole ,signal.uu.se Page 1. Departmen t of Electronics and T elecomm unications 1 Adaptive Trellis-Coded Modulation with Imperfect CSI at Receiver and Transmitter, and Receive Antenna Diversity Duc V. Duong * , Geir E. Øien * and Kjell J. Hole *NTNU, Dept. 

Adaptive Selective State-Transition Decoding: A Combined Approach for Trellis Coded Modulation Scheme
free download

ABSTRACT We are presenting a new suboptimum decoding strategy, namely, Adaptive Selective State-Transition Decoding (ASSTD) for Trellis Coded Modulation schemes transmission over band-limited ISI channels. The ASSTD is a combined approach 

Further Results on Bandwidth-Efficient Trellis-Coded Modulation with Prescribed Decoding Delay
free download

Motivated by previous work of Li and Rimoldi for obtaining bandwidth-efficient trellis-coded modulation (TCM) signals with finite decoding delay, we present an alternative representation for their encoder/signal-mapper transmitter structure that consists of merely 

Golden Space-Time Trellis Coded Modulation Yi Hong Emanuele Viterbo Jean-Claude Belfiore
free download

Y Hong ,ecse.monash.edu.au ABSTRACT In this paper, we present a multidimensional trellis coded modulation scheme for a high rate 2× 2 multiple-input multiple-output (MIMO) system over slow fading channels. Set partitioning of the Golden code is designed specifically to increase the minimum 

Improved decoding for trellis coded modulation with a convolutional processor
free download

ABSTRACT It is already known that trellis coded modulation (TCM), constructed by using the encoder of a convolutional code C with short constraint length followed by a convolutional processor and a signal mapper, can achieve large squared free distances, where the 

„An analog voice modem with generalized Wei's type 2N-dimensional trellis coded modulation 
free download

ABSTRACT This article presents an analog voice modem with generalized Wei's type 2N- Dimensional trellis coded modulation with optimal CER (Constellation Extension Rate) and PAR (Peak-to-Average power Rate) parameters. CER is the ratio between average 

Concatenated Differential Space-Time Block Codes and Four Dimensional 8-PSK Trellis Coded Modulation for Wireless MIMO system with Rayleigh fading
free download

EB Slimane, S Jarboui, I Lamouchi, A Bouallgue ABSTRACT In this paper, new concatenated inner-differential space-time block code (DSTBC) and outer four-dimensional 8-PSK trellis coded modulation (4D-8-PSK-TCM) encoder is designed for wireless MIMO system with Rayleigh fading noise in the absence of channel 

Highly Bandwidth-Efficient Concatenated Multidimensional Trellis Coded Modulation
free download

A Hof, G Richter ,tait.e-technik.uni-ulm.de OFDM systems requires codes with high bandwidth efficiencies. A recently introduced concatenated coding scheme employing trellis coded modulation (TCM), the so-called staggered TCM, is very promising for this purpose. Due to its block-convolutional structure 

Space-Time Turbo Equalization Scheme Employing Trellis Coded Modulation over Frequency Selective Fading Channels
free download

S IBI, S SAMPEI, N MORINAGA ,www2a.comm.eng.osaka-u.ac.jp ABSTRACT To support bandwidth-efficient broadband systems using a single carrier transmission scheme over frequency selective fading channels, this paper proposes a new space-time turbo equalization scheme that employs trellis coded modulation (TCM). This 

Exact Calculation of the Union Bound on Performance of Trellis Coded Modulation in Fading Channels
free download

ABSTRACT This paper presents a method for exact calculation of the union bound on error performance of trellis coded modulation in fading channels. Previous analyses have approximated the error expression to allow use of the transfer function, or restricted their 


FREE ENGINEERING RESEARCH PAPERS