Title :
On the complexity of very large multi-user MIMO detection
Author :
Cirkic, Mirsad ; Larsson, Erik G.
Author_Institution :
Dept. of Electr. Eng. (ISY), Linkoping Univ., Linkoping, Sweden
Abstract :
This work discusses efficient techniques for detection in large-dimension multi-user multiple-input multiple-output (MIMO) systems that are highly overdetermined. We exemplify the application of conjugate gradient methods in the setup of our interest and compare its performance with respect to methods based on the Neumann series expansion. We also bring to light some important insights on the performance versus complexity tradeoffs that have not been uplifted before.
Keywords :
MIMO communication; conjugate gradient methods; multiuser detection; Neumann series expansion; complexity tradeoff; conjugate gradient methods; large-dimension multiuser multiple-input multiple-output detection; performance tradeoff; very large multiuser MIMO detection; Antennas; Complexity theory; Conferences; MIMO; Signal processing; Vectors; Wireless communication;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2014 IEEE 15th International Workshop on
Conference_Location :
Toronto, ON
DOI :
10.1109/SPAWC.2014.6941316
