Results 191 to 200 of about 6,965 (214)

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

Trellis-coded M-ary orthogonal modulation

Proceedings IEEE Symposium on Computers and Communications, 2002
We have introduced the trellis-coded M-ary (M=32) 4-dimensional (4-D) orthogonal modulation scheme. Here, a rate 4/5 convolutional encoder generates one of 32 possible symbols every T seconds. Then the signal mapping for 32 symbols is performed by a M-ary 4-D orthogonal modulator.
openaire   +1 more source

Power Allocation in Concatenated Trellis Coded Modulation

IEEE Transactions on Wireless Communications, 2008
In this paper, power loading algorithms are presented for limited diversity fading channels with channel state information at the transmitter. Limited diversity channels are those that offer moderate levels of diversity (about 3-5) such as those encountered in orthogonal frequency division multiplexing (OFDM) based indoor wireless networks.
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Decoding algorithms for noncoherent trellis coded modulation

IEEE Transactions on Communications, 1996
Noncoherent decoding of trellis codes using multiple-symbol overlapped observations was shown previously to achieve close to the coherent performance. Optimal decoding by the Viterbi algorithm for L-symbol observations requires a number of states which grows exponentially with L.
openaire   +2 more sources

Improved codes for space-time trellis-coded modulation

IEEE Communications Letters, 2000
G Bauch
exaly  

Noncoherent-coded modulation constructed from conventional trellis-coded modulation

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

Turbo Trellis Coded Modulation

1996
Robertson, P., Wörz, T.
openaire   +2 more sources

Trellis-Coded Modulation (TCM)

2022
openaire   +1 more source

Performance evaluation of trellis-coded modulation schemes

Proceedings of the IEEE, 1994
S Benedetto, M Mondin, G Montorsi
exaly  

trellis-coded modulation

2011
openaire   +1 more source