Title
An efficient regularization approach for underdetermined MIMO system decoding
Abstract
An efficient regularization approach is proposed for decoding underdetermined multiple input multiple output (MIMO) systems. The main idea is to transform an underdetermined integer least squares problem to an equivalent overdetermined integer least squares problem by using part of the transmit vector to do a regularization. Some strategies are proposed to enhance the efficiency of this approach. Specifically, we discuss how many entries of the transmit vector should be chosen and how to choose them when we do the regularization. An empirical formula for the regularization parameter is presented. Simulation results indicate that this modified approach can be much more efficient than current approaches for any square constellation higher than 4QAM.
Year
DOI
Venue
2007
10.1145/1280940.1281015
IWCMC
Keywords
DocType
Citations 
main idea,underdetermined integer,empirical formula,underdetermined multiple input,regularization parameter,squares problem,modified approach,efficient regularization approach,multiple output,current approach,underdetermined mimo system decoding,mimo
Conference
5
PageRank 
References 
Authors
0.52
11
2
Name
Order
Citations
PageRank
Xiao-Wen Chang120824.85
Xiaohua Yang250.52