Alamri, Osamah, Poupart, Blandine, El-Hajjar, Mohammed, Ng, Soon and Hanzo, Lajos
ON MULTIDIMENSIONAL BICM-ID CONSTELLATION LABELLING.
In, ICC 2010, Cape Town, South Africa,
23 - 27 May 2010.
Abstract - It is widely recognised that the choice of a speciﬁc bit-to-symbol mapping scheme or a beneﬁcial constellation labelling is an inﬂuential factor, when designing bit-inter-leaved coded modulation using iterative decoding (BICM-ID) for the sake of achieving a high iteration gain. Generally, a larger constellation size of a higher-dimensional space renders the bit-to-symbol mapping design more ﬂexible. In this paper, we ﬁrst deﬁne a ﬂexibility measure based on the extrinsic information transfer (EXIT) characteristics of bit-to-symbol mapping schemes. Secondly, we investigate the effect of expanding the constellation to a higher-dimensional space on our proposed EXIT characteristic ﬂexibility index, when transmitting diverse numbers of bits per joint symbol.
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