Abstract
In this paper the problem of constellation shaping
is considered. Mapping functions are designed for a many-
to-one signal shaping strategy, combined with a turbo coded
Bit-interleaved Coded Modulation
(BICM), based on symmetric
Huffman codes with binary reflected Gray-like properties. An
algorithm is derived for finding the Huffman code with such
properties for a variety of alphabet sizes, and near-capacity
performance is achieved for a wide SNR region by dynamically
choosing the optimal code rate, constellation size and mapping
function based on the operating SNR point and assuming
perfect channel quality estimation. Gains of more than 1dB are
observed for high SNR compared to conventional turbo coded
BICM, and it is shown that the mapping functions designed
here significantly outperform current state of the art Turbo-
Trellis Coded Modulation and other existing constellation shaping
methods
| Original language | English |
|---|---|
| Title of host publication | Proceedings of IEEE ICC 2014 |
| Publisher | IEEE |
| Publication date | 2014 |
| Pages | 2112-2117 |
| ISBN (Print) | 978-1-4799-2003-7 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | IEEE International Conference on Communications 2014 - Sydney, Australia Duration: 10 Jun 2014 → 14 Jun 2014 |
Conference
| Conference | IEEE International Conference on Communications 2014 |
|---|---|
| Country | Australia |
| City | Sydney |
| Period | 10/06/2014 → 14/06/2014 |