Title :
Space–Time Trellis Code Design Based on QAM-MTCM With Trellis Shaping
Author :
Wang, Dong ; Xia, Xiang-Gen
Author_Institution :
Philips Res. North America, Briarcliff Manor, NY
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
Keywords :
orthogonal codes; quadrature amplitude modulation; set theory; space-time codes; trellis codes; QAM-MTCM; constellation expansion ratio; peak constraints; peak-to-average power ratio; quadrature amplitude modulation constellations; shaping gain; space-time trellis code design; super-orthogonal space-time trellis codes; systematic set-partitioning method; trellis shaping; Block codes; Convolutional codes; Decoding; Design methodology; Modulation coding; Peak to average power ratio; Phase shift keying; Quadrature amplitude modulation; Signal design; Transmitting antennas; Multiple trellis-coded modulation (MTCM); set partitioning; super-orthogonal space–time trellis codes (SOSTTCs); trellis shaping;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2006.885068
