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» Constellation labeling maps for low error floors
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TWC
2008
111views more  TWC 2008»
13 years 4 months ago
Constellation labeling maps for low error floors
A constellation labeling map is the assignment of a bit pattern to each symbol in a signal-set constellation. In a system with bit-interleaved coded-modulation and iterative decod...
Don J. Torrieri, Matthew C. Valenti
CISS
2008
IEEE
13 years 10 months ago
A genetic algorithm for designing constellations with low error floors
—The error floor of bit-interleaved coded modulation with iterative decoding (BICM-ID) can be minimized for a particular constellation by maximizing the harmonic mean of the squ...
Matthew C. Valenti, Raghu Doppalapudi, Don J. Torr...
ICC
2000
IEEE
127views Communications» more  ICC 2000»
13 years 8 months ago
Edge Profile Optimal Constellation Labeling
Structurally distinct constellation labelings exist within both the Gray code and the set-partitioning paradigm. Different labeling choices within either paradigm can provide diffe...
Richard D. Wesel, Xueting Liu
GLOBECOM
2006
IEEE
13 years 10 months ago
Investigation of Error Floors of Structured Low-Density Parity-Check Codes by Hardware Emulation
Abstract−Several high performance LDPC codes have paritycheck matrices composed of permutation submatrices. We design a parallel-serial architecture to map the decoder of any str...
Zhengya Zhang, Lara Dolecek, Borivoje Nikolic, Ven...
TIT
2010
110views Education» more  TIT 2010»
12 years 11 months ago
Error rates of the maximum-likelihood detector for arbitrary constellations: convex/concave behavior and applications
Motivated by a recent surge of interest in convex optimization techniques, convexity/concavity properties of error rates of the maximum likelihood detector operating in the AWGN ch...
Sergey Loyka, Victoria Kostina, François Ga...