IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
BER performance analysis of multi-dimensional modulation with BICM-ID
Akira Naka
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2017 Volume 6 Issue 12 Pages 645-650

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Abstract

We numerically evaluate Bit Error Rate (BER) performance of four- and eight-dimensional modulation formats with Bit-Interleaved Coded Modulation Iterative Detection (BICM-ID) compared with Gray mapped and natural binary mapped two-dimensional formats for high-speed optical communication systems. The BICM-ID, which is composed of a demodulator and a decoder, effectively improves power efficiency of the multi-dimensional formats taking into account receiver sensitivity and transmission capacity per symbol. Further, we quantitatively verify that the BER performances significantly depend on a priori/extrinsic mutual information exchange between a demodulator and a decoder, which is illustrated by Extrinsic Information Transfer (EXIT) chart.

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© 2017 The Institute of Electronics, Information and Communication Engineers
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