Title :
An Improved Group Detection Algorithm for ML-STTC in Wireless Communication Systems
Author :
Han, Changcai ; Yuan, Dongfeng
Author_Institution :
Shandong Univ., Jinan
Abstract :
The group detection algorithms for multilayered space-time trellis codes (ML-STTC), which combine space-time trellis code (STTC) and Bell Laboratories Space-Time (BLAST), are researched. According to the minimum mean square error (MMSE) detection algorithm for BLAST, the matrix of linear combination coefficients suitable for ML-STTC is drawn, and then the group interference MMSE suppression and cancellation algorithm is proposed. Simulation results show the modified detection algorithm can significantly improve the power-efficiency of the system at low signal-to-noise ratio (SNR)
Keywords :
interference suppression; least mean squares methods; radiocommunication; radiofrequency interference; signal detection; space-time codes; trellis codes; BLAST; Bell Laboratories Space-Time; MMSE; SNR; group detection algorithm; interference cancellation; interference suppression; minimum mean square error; multilayered space-time trellis codes; signal-to-noise ratio; wireless communication systems;
Conference_Titel :
Mobile Technology, Applications and Systems, 2005 2nd International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
981-05-4573-8
DOI :
10.1109/MTAS.2005.243789
