TY - JOUR
T1 - Space-time codes with AM-PSK constellations
AU - Lu, Francis
PY - 2005/12
Y1 - 2005/12
N2 - This correspondence presents a new signal mapper that maps the maximal rank distance codes to space-time (ST) codes with amplitude modulation phase-shift keying (AM-PSK) constellations. It is shown that this new mapper is rank-distance preserving. Comparing to the multi-radii construction proposed by Hammons, this new mapper has linear increase in the radii and the resulting signal constellations have larger minimum distance and lower peak-to-average power ratio. Variations of this new mapper are also given to provide ST codes with rotated AM-PSK constellations.
AB - This correspondence presents a new signal mapper that maps the maximal rank distance codes to space-time (ST) codes with amplitude modulation phase-shift keying (AM-PSK) constellations. It is shown that this new mapper is rank-distance preserving. Comparing to the multi-radii construction proposed by Hammons, this new mapper has linear increase in the radii and the resulting signal constellations have larger minimum distance and lower peak-to-average power ratio. Variations of this new mapper are also given to provide ST codes with rotated AM-PSK constellations.
KW - Amplitude modulation phase-shift keying (AM-PSK) constellation
KW - Diversity gain advantage
KW - Multiple antennas
KW - Multiple input multiple output (MIMO)
KW - Rate-diversity tradeoff
KW - Space-time (ST) codes
KW - Unified construction
UR - http://www.scopus.com/inward/record.url?scp=29144445934&partnerID=8YFLogxK
U2 - 10.1109/TIT.2005.858982
DO - 10.1109/TIT.2005.858982
M3 - Article
AN - SCOPUS:29144445934
SN - 0018-9448
VL - 51
SP - 4355
EP - 4358
JO - IEEE Transactions on Information Theory
JF - IEEE Transactions on Information Theory
IS - 12
ER -