Apparatus and method for decoding turbo TCM using coset mapping

Details Apparatus and method for decoding turbo TCM using coset mapping Apparatus and method for decoding turbo TCM using coset mapping

2004-09-03

2009-11-03

Hoang, Thai D (Department: 2416)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Quadrature carriers

Reexamination Certificate

active

07613103

ABSTRACT:
A turbo TCM decoder for performing a soft decision without performing a sector phase quantization is disclosed. The turbo TCM decoder includes: a symbol transformer for converting a received signal to signal bits of QPSK mode by using an I-axis coordinate and a Q-axis coordinate on a constellation of the received signal; a phase sector quantizer for performing a phase sector quantization or the received signal by using the I-axis coordinate and the Q-axis coordinate; a first decoder for determining coded data by decoding the converted signal bits; a delay for delaying the quantized signal; and a second decoder for determining un-coded data by using the delayed quantized signal and the determined coded data.

REFERENCES:
patent: 5398260 (1995-03-01), Min
patent: 6304614 (2001-10-01), Abbaszadeh
patent: 6683921 (2004-01-01), Shiraishi et al.
patent: 6714596 (2004-03-01), Shiraishi et al.
patent: 7340002 (2008-03-01), Choi et al.
Benedetto, S.; Mondin, M.; Montorsi, G.; “Performance evaluation of trellis-coded modulation schemes”; Proceedings of the IEEE; vol. 82, Issue 6, Jun. 1994, pp. 833-855.
Lee-Fang Wei; “Trellis-coded modulation with multidimensional constellations”; Information Theory, IEEE Transactions on vol. 33, Issue 4, Jul 1987, pp. 483-501.
Divsalar, D.; Simon, M.K.; “Multiple trellis coded modulation (MTCM)”; Communications, IEEE Transactions on vol. 36, Issue 4, Apr. 1988, pp. 410-419.
Zhaohui Cai, et al., “Joint trellis-coded quantisation/modulation”, Electronics Letters Aug. 17, 2000 vol. 36 No. 17.
Ji-Won Jung, et al. “Turbo-Coded Pragmatic Trellis Coded Modulation Using Coset Mapping”, The 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communication Proceedings, Sep. 7-10, 2003.
Michael D. Ross et al., “Fragmatic Trellis Coded Modulation: A Simulation Using 24-Sector Quantized 8-PSK” (IPCCC '92), pp. 232-239, 1992 IEEE.

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