Towards Optimality in Constellation
نویسندگان
چکیده
Communication Theory Mini Conference Globecom 97 Towards Optimality in Constellation Labeling Richard D. Wesel, Christos Komninakis, and Xueting Liu University of California, Los Angeles, CA 90095-1594 Abstract Robust trellis codes that perform well on channels with severe, correlated fading require low rates and do not employ uncoded (pass-through) bits. For this trellis code design problem, neither Gray-coding or set-partitioning is well motivated. We propose a new approach to constellation labeling and provide a low-rate 32-QAM trellis code design example to show how the new approach can provide improved metrics at low rates.
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تاریخ انتشار 1997