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Design of Irregular Weighted Nonbinary Repeat-Accumulate Codes over GF(q) with q-ary Orthogonal Modulation Using a Gaussian Approximation

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3 Author(s)
Yongsang Kim ; Div. of Electr. & Comput. Eng., POSTECH, Pohang, South Korea ; Kyungwhoon Cheun ; Hyuntack Lim

Using a Gaussian approximation to the distribution of the message vectors under density evolution, we design irregular weighted nonbinary repeat-accumulate codes over GF(q) with q-ary orthogonal modulation. The resulting codes achieve a frame error rate of 10-1 within 0.56 to 0.91 dB of channel capacity under the AWGN channel.

Published in:

Communications, IEEE Transactions on  (Volume:59 ,  Issue: 11 )

Date of Publication:

November 2011

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