Title :
On the performance of Kronecker MIMO channel models: A semi-definite relaxation approach
Author :
Shariati, Nafiseh ; Bengtsson, Mats
Author_Institution :
Sch. of Electr. Eng., KTH R. Inst. of Technol., Stockholm, Sweden
Abstract :
The Kronecker model is a popular structure in the design and analysis of multiple-input multiple-output (MIMO) systems. Despite being criticized for unrealistic results in some cases, it mathematically facilitates the analysis of MIMO transmission schemes. In our earlier work [1], we proposed algorithms in order to determine a MIMO channel covariance matrix which is as far as possible from the Kronecker model based on semi-definite relaxation approach. In this paper, we develop this approach for different case studies. In particular, we verify our proposed algorithms for different size of antennas. Further, as a case study for the relevance of the Kronecker assumption, numerical analysis will be carried out to evaluate the performance of optimal pilot design for Kronecker and non-Kronecker MIMO channels.
Keywords :
MIMO communication; antenna arrays; covariance matrices; wireless channels; Kronecker MIMO channel models; MIMO transmission schemes; antenna sizes; covariance matrix; multiple-input multiple-output systems; nonKronecker MIMO channels; numerical analysis; optimal pilot design; semidefinite relaxation approach; Correlation; Covariance matrix; Interference; MIMO; Optimization; Training; Vectors; Kronecker model; Mean square error; Semi-definite relaxation; Spatially correlated MIMO channels; Training sequence design;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096959
