Non-systematic and non-linear PC-TCM (Parallel Concatenate...

Details Non-systematic and non-linear PC-TCM (Parallel Concatenate... Non-systematic and non-linear PC-TCM (Parallel Concatenate...

2007-05-22

2007-05-22

Payne, David C. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S261000, C375S260000

Reexamination Certificate

active

10446318

ABSTRACT:
Non-systematic and non-linear PC-TCM (Parallel Concatenate Trellis Coded Modulation). A non-systematic and non-linear PC-TCM code is presented that provides quite comparable performance to turbo encoding using only systematic and linear trellis codes (e.g., convolutional codes). The non-systematic and non-linear PC-TCM described herein may be modified to support a wide variety of code rates (e.g., rate 2/3, 5/6, 8/9, and 3/4 among other rates) and also a wide modulation types (e.g., 8 PSK (8 Phase Shift Key) and 16 QAM (16 Quadrature Amplitude Modulation) among other modulation types). In one embodiment, a non-systematic and non-linear PC-TCM presented herein comes to within approximately 0.15 dB of a systematic and linear turbo code. A design approach is presented that allows for the design of such non-systematic and non-linear PC-TCM codes and several exemplary embodiments are also presented that have been designed according to these presented principles.

REFERENCES:
patent: 5406570 (1995-04-01), Berrou et al.
patent: 5446747 (1995-08-01), Berrou
patent: 5563897 (1996-10-01), Pyndiah et al.
patent: 5594742 (1997-01-01), Hemmati
patent: 6023783 (2000-02-01), Divsalar et al.
patent: 6065147 (2000-05-01), Pyndiah et al.
patent: 6119264 (2000-09-01), Berrou et al.
patent: 6122763 (2000-09-01), Pyndiah et al.
patent: 2002/0036714 (2002-03-01), Markman
patent: 0 735 696 (1996-10-01), None
patent: 0 735 696 (1999-01-01), None
patent: 91 05278 (1992-10-01), None

Affiliated with

Also associated with

Rating

Non-systematic and non-linear PC-TCM (Parallel Concatenate... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-systematic and non-linear PC-TCM (Parallel Concatenate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-systematic and non-linear PC-TCM (Parallel Concatenate... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3743004