Results 131 to 140 of about 211 (167)

Trellis coding for spatial modulation

2011 IEEE 19th Signal Processing and Communications Applications Conference (SIU), 2011
In this study, by combining trellis coding with spatial modulation (SM), a new multiple-input multiple output (MIMO) communication scheme called trellis coded spatial modulation (TC-SM) is proposed. For uncorrelated Rayleigh fading channels, code design criteria are given by deriving pairwise error probability (PEP) of this system, in which a trellis ...
Ertugrul Basar, Umit Aygolu, Erdal Panayirci, H. Vincent Poor   +3 more
openaire   +1 more source

On trellis modules for convolutional codes

Proceedings IEEE International Symposium on Information Theory,, 2003
We consider trellis modules for convo- lutional codes based on time-varying codes. I. EXTENDED SUMMARY Let C denote a convolutional code over GF(2), with block length n, k information bits and overall memory U (where v is the smallest integer such that C has an encoder requiring only U delay units), and free distance d.
R.D. Souza, B.F. Uchoa-Filho
openaire   +1 more source

Turbo trellis-coded spatial modulation

2012 IEEE Global Communications Conference (GLOBECOM), 2012
In this paper, a turbo trellis-coded spatial modulation (TTCSM) transmission scheme is proposed. In trellis-coded spatial modulation (TCSM) scheme, the information bits used to select the transmit antenna index are encoded. In order to increase the performances of the TCSM scheme, a parallel concatenated encoding scheme can be used. Therefore, the TCSM
openaire   +1 more source

Combination of block-coded modulation and trellis-coded modulation

IEE Proceedings I Communications, Speech and Vision, 1991
It is known that trellis-coded modulation (TCM) can give a significant coding gain without compromising bandwidth efficiency, by the concepts of signal set partition and trellis coding scheme. It is also known that block-coded modulation (BCM) can be used to approach closely the maximum energy saving that can be obtained by using the densest lattice ...
J.-M. Wu, S.-L. Su
openaire   +1 more source

Phase ambiguity resolution in trellis-coded modulations

IEEE Transactions on Communications, 1990
A rotation detection algorithm for solving the phase ambiguity problem in trellis-coded modulations is proposed. This algorithm is simple to implement and may be an efficient alternative to rotationally invariant codes. Its performance has been investigated by simulation and appears promising. >
U. Mengali, A. Sandri, SPALVIERI, ARNALDO   +2 more
openaire   +2 more sources

Turbo coding applied to pragmatic trellis-coded modulation

IEEE Communications Letters, 2000
This letter reports the application of the powerful turbo coding technique combined with the bandwidth efficient method known as trellis-coded modulation (TCM). Implemented as a simple modification of pragmatic TCM, our turbo-coded pragmatic TCM system achieved coding gains of 1-2 dB in simulations relative to pragmatic TCM.
Bruce E. Wahlen, Calvin Y. Mai
openaire   +1 more source

The performance of trellis-coded modulation

TENCON'92 - Technology Enabling Tomorrow, 2003
Trellis-coded modulation (TCM) in an 8-PSK (phase shift keying) scheme is more power efficient than uncoded QPSK at the same spectral efficiency on perfect coherent detection. For the same signal-to-noise ratio (SNR) of phase reference, the sensitivity to phase offset for 8-PSK is more serious than for uncoded QPSK.
openaire   +1 more source

Noncoherently Non-Catastrophic Trellis Coded Modulation

IEEE Transactions on Communications, 2011
Ruey-Yi Wei
exaly  

Noncoherent-coded modulation constructed from conventional trellis-coded modulation

IEEE Communications Letters, 1998
Mao-Chao Lin, Ruey-Yi Wei
exaly  

Improved codes for space-time trellis-coded modulation

IEEE Communications Letters, 2000
Gerhard Bauch
exaly