Abstract
Trellis codes combine channel coding and modulation techniques for data transmission over band limited channels. Theoretically, it achieves significant coding gains over conventional uncoded multilevel modulation without compromising bandwidth efficiency. In this Chapter, the effect of trellis encoding algorithms are studied, and the effectiveness for Carrier Serving Area (CSA) loop environments in the presence of imperfect echo cancellation at primary rate ISDN applications are evaluated. A basic methodology for the simulation of trellis codes for QAM clusters is utilized. The effect of trellis codes for 16 and 64 QAM is outlined. Results for the coded 16 and 64 QAM constellations for three typical CSA loops with 60 dB of echo cancellations are presented along with the effects of trellis codes on the entire CSA loop population.
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References
A.R. Khalifa 1993, “Trellis Encoding for Quadrature Amplitude Modulation Clusters for Primary Rate Integrated Services Digital Network”, Ph.D. Dissertation, City University of New York, February
G.S. Moschytz, S.V. Ahamed 1991, “Transhybrid Loss with RC Balance Circuits for High-Speed Full Duplex Modems,” IEEE Journal on Selected Areas in Communications, Vol. J-SAC-9, No. 6, August, 951–959
J.W. Lechleider 1989, “Line Codes for Digital Subscriber Lines,” IEEE Communications Magazine, Vol. 27, No. 9, September.
G. Ungerboeck 1987, “Trellis-Coded Modulation with Redundant Signal Sets-Part II: State of the Art,” IEEE Communications Magazine, Vol. 25, No. 2, February
S.V. Ahamed and G.S. Moschytz 1991, “Optimization of the RC Matching Networks in Adaptive Active Hybrids for High-Speed Data Communications,” Proceedings of the International Symposium on Circuits and Systems, 1701–1704
S.V. Ahamed 1993, “Simulation Environments for High-Speed Digital Subscriber Line (HDSL),” in Conference Record International Communications Conference’ 93, Geneva, Switzerland, May 23-26, Vol. 3, 1791–1796
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© 1997 Springer Science+Business Media New York
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Ahamed, S.V., Lawrence, V.B. (1997). Performance of Trellis Coding. In: Design and Engineering of Intelligent Communication Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-6291-7_13
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DOI: https://doi.org/10.1007/978-1-4615-6291-7_13
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-7888-4
Online ISBN: 978-1-4615-6291-7
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