Abstract
In this letter, super-orthogonal space-time trellis codes (SOSTTCs) are extended for quadrature amplitude modulation (QAM) constellations. A systematic set-partitioning method for QAM constellations is given. Furthermore, trellis shaping based on set partitioning is incorporated in SOSTTCs with QAM symbols to achieve extra shaping gain. Peak constraints can be used to limit the constellation expansion ratio and peak-to-average power ratio.
Original language | English |
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Pages (from-to) | 76-82 |
Number of pages | 7 |
Journal | IEEE Transactions on Communications |
Volume | 55 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2007 |
Externally published | Yes |
Keywords
- Multiple trellis-coded modulation (MTCM)
- Set partitioning
- Super-orthogonal space-time trellis codes (SOSTTCs)
- Trellis shaping