TY - GEN
T1 - On multilevel trellis MPSK codes
AU - Wu, Jiantian
AU - Costello, Daniel J.
AU - Perez, Lance C.
N1 - Funding Information:
This work was supported in part by NASA Grant NAG5-557, NSF Grant NCR89-03429, and NSF Fellowship NSF-RCD89-54851.
Publisher Copyright:
© 1991 Institute of Electrical and Electronics Engineers Inc. All rights reserved.
PY - 1991
Y1 - 1991
N2 - The performance of multilevel trellis codes (MLTCs) using MPSK signalling with multistage decoding (MSD) is studied. It is shown that 8PSK codes can only achieve a real coding gain of 4dB over uncoded QPSK at a bit error rate (BER) of 10-5. However, multistage decoding has a significant complexity advantage compared to Viterbi decoding which is used with one level trellis coded modulation (TCM). It is shown that some 8PSK MLTCs with high spectral efficiency (about 2.5 bits/symbol) and moderate coding gain have a performance versus complexity advantage over one level TCM even at a BER of 10-5. Computer simulations support this result. Simulation is also used to study the performance loss due to the suboptimal nature of MSD. Concatenated multilevel codes are designed by using concatenated codes at one or more levels of the MLTC.
AB - The performance of multilevel trellis codes (MLTCs) using MPSK signalling with multistage decoding (MSD) is studied. It is shown that 8PSK codes can only achieve a real coding gain of 4dB over uncoded QPSK at a bit error rate (BER) of 10-5. However, multistage decoding has a significant complexity advantage compared to Viterbi decoding which is used with one level trellis coded modulation (TCM). It is shown that some 8PSK MLTCs with high spectral efficiency (about 2.5 bits/symbol) and moderate coding gain have a performance versus complexity advantage over one level TCM even at a BER of 10-5. Computer simulations support this result. Simulation is also used to study the performance loss due to the suboptimal nature of MSD. Concatenated multilevel codes are designed by using concatenated codes at one or more levels of the MLTC.
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U2 - 10.1109/ISIT.1991.695201
DO - 10.1109/ISIT.1991.695201
M3 - Conference contribution
AN - SCOPUS:85067486295
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 145
BT - Proceedings - 1991 IEEE International Symposium on Information Theory, ISIT 1991
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1991 IEEE International Symposium on Information Theory, ISIT 1991
Y2 - 24 June 1991 through 28 June 1991
ER -