Improved K-best sphere decoder with a look-ahead technique for multiple-input multiple-output systems
Journal
2008 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2008
Date Issued
2009
Author(s)
Lin, Xing-Cheng
Abstract
In this paper, a novel look-ahead technique taking advantages of the signal diversity is proposed to improve the performance of the conventional K-best sphere decoding algorithm that solves the MIMO detection problem of the spatial multiplexing scheme. We also examine the complexity overhead and the performance gain. Simulation results demonstrate that our proposed algorithm can achieve better performance with lower complexity by using a smaller K value than the one used in the conventional K-best algorithm.
Event(s)
2008 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2008
Subjects
K-best
MIMO
Sphere decoder
Description
Bangkok, 8 February 2009 through 11 February 2009
Type
conference paper