DocumentCode :
3271690
Title :
Performance analysis of Osman Nuri Ucan (ONU)-receiver for trellis coded M-QAM schemes in partial response channels
Author :
Ucan, Osman Nuri
Author_Institution :
Fac. of Electr. & Electron. Eng., Istanbul Tech. Univ., Turkey
Volume :
2
fYear :
1994
fDate :
18-21 Oct 1994
Firstpage :
76
Abstract :
Trellis coded M-QAM modulated signals are analysed in a partial response channel using the Osman Nuri Ucan (ONU)-receiver proposed by Ucan in 1992. The ONU-receiver is composed of k-parallel unit memory decoder, k/k+1 rated systematic encoder, cascaded with a PRS channel model. The combined trellis structure of ONU-receiver reduces the state number from 2k2ν2k+1 resulting from k-unit memory of the parallel precoders, ν unit memory of the systematic encoder and (k+1) unit memory of the PRS channel model to only 2k+ν. Therefore considering the PRS channel together with classical trellis coded M-QAM structures does not increase the state number and decoding complexity. The ONU receiver improves both the bandwidth efficiency and error performance with no resulting increase in the decoding complexity. As an example, the error event lower bound of the ONU-receiver is derived for 4QAM-TCM having an encoder memory ν=1 and ν=2 in AWGN and colored noise environments
Keywords :
Gaussian noise; decoding; partial response channels; quadrature amplitude modulation; receivers; trellis coded modulation; white noise; 4QAM-TCM; AWGN; Osman Nuri Ucan receiver; PRS channel model; bandwidth efficiency; colored noise; decoding complexity; encoder memory; error performance; parallel precoders; parallel unit memory decoder; partial response channels; performance analysis; state number; systematic encoder; trellis coded M-QAM modulated signals; AWGN; Additive white noise; Art; Colored noise; Decoding; Gaussian noise; Modulation coding; Optical network units; Partial response channels; Performance analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Satellite Communications, 1994. ICSC'94., Proceedings of International Conference on
Conference_Location :
Moscow
Print_ISBN :
0-7803-2514-1
Type :
conf
DOI :
10.1109/ICSC.1994.523137
Filename :
523137
Link To Document :
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