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Fast decoding of the hexagonal lattice with applications to power efficient multi-level modulation systems

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1 Author(s)
Mow, W.H. ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

The hexagonal lattice is important for many signal processing problems in 2-D space. In particular, it was known in the early 60's that the lattice is asymptotically optimal for 2-D signal constellation. However, in the past three decades, most modem designers believed that the honeycomb constellation (HC) is impractical. One main difficulty is its complicated data decision operations. A fast decoding algorithm for the hexagonal lattice is proposed, so that the resultant HC demodulator is much simpler than the existing ones

Published in:

Singapore ICCS/ISITA '92. 'Communications on the Move'

Date of Conference:

16-20 Nov 1992