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Simplified Maximum-Likelihood Decoder for V-BLAST Architecture  

Le Minh-Tuan (students in Communication and Electronics Lab(CEL), Information and Communications University(ICU))
Pham Van-Su (students in Communication and Electronics Lab(CEL), Information and Communications University(ICU))
Mai Linh (students in Communication and Electronics Lab(CEL), Information and Communications University(ICU))
Yoon Giwan (Information and Communications University(ICU))
Abstract
In this paper, a low-complexity maximum-likelihood (ML) decoder based on QR decomposition, called real-valued LCMLDec decoder or RVLCMLDec for short, is proposed for the Vertical Bell Labs Layered Space-Time (V-BLAST) architecture, a promising candidate for providing high data rates in future fixed wireless communication systems [1]. Computer simulations, in comparison with other detection techniques, show that the proposed decoder is capable of providing the V­BLAST schemes with ML performance at low detection complexity
Keywords
Space-time coding; multiple-input multiple-output; maximum likelihood detection; sphere decoding; wireless communication;
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