Title :
Advanced Receiver Algorithms for Multi-Layered Space-Time Block Codes
Author :
Raza, Arif ; Schormans, John Alexander ; Chen, Xia
Author_Institution :
Dept. of Electron. Eng., Queen Mary Univ. of London, London
Abstract :
In this paper we propose a new receiver architecture for multi-layered space-time block codes based on the QR decomposition and compare its performance to an alternative solution proposed by the authors based on MMSE. Both these algorithms use an iterative method based on soft decision statistics to cancel out interference from subsequent decoded layers and reduce the effect of error propagation (EP). We also compare the performance results with a sorted QR- method and discuss the complexity, rate and diversity tradeoffs.
Keywords :
block codes; interference suppression; iterative decoding; least mean squares methods; radio receivers; space-time codes; statistical analysis; MMSE; QR decomposition; decoding; error propagation; interference cancellation; iterative method; minimum mean squared error; multilayered space-time block code; receiver algorithm; soft decision statistics; Diversity; MIMO; Multi-layer; STBC; V-BLAST;
Conference_Titel :
Ultra Wideband Systems, Technologies and Applications, 2006. The Institution of Engineering and Technology Seminar on
Print_ISBN :
0-86341-625-X
