Title :
Iterative Group Detection Schemes for STTC and LST Combined System
Author :
Han, Changcai ; Wu, Weiling
Author_Institution :
Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
The transmission scheme of multilayered space-time trellis codes (ML-STTC) achieves tradeoff between diversity gain and multiplexing gain by combining space-time trellis code (STTC) and layered space-time (LST) structure in multiple-input and multiple-output (MIMO) systems. In this paper, iterative minimum mean square error (MMSE) group detection and iterative MMSE interference cancellation (IC) group detection schemes are proposed to improve the performance of ML-STTC. Moreover, the iteration can reduce the influence of the detection order on performance, and compensate for the performance loss of the firstly detected layer instead of power allocation in the iterative MMSE IC group detection scheme.
Keywords :
MIMO communication; interference suppression; iterative methods; mean square error methods; multiplexing; space-time codes; trellis codes; MIMO system; diversity gain; interference cancellation; iterative minimum mean square error group detection; multilayered space-time trellis codes; multiple-input and multiple-output system; multiplexing gain; Convolutional codes; Diversity methods; Diversity reception; Interference cancellation; MIMO; Performance loss; Receiving antennas; Slot antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.339
