Title :
On the capacity of MIMO system operating in multi-access scenario
Author :
Liu, Xia ; Wang, Feng ; Bialkowski, Konstanty ; Bialkowski, Marek E.
Author_Institution :
Sch. of ITEE, Univ. of Queensland, St. Lucia, QLD, Australia
Abstract :
This paper reports on the capacity of a MIMO system operating in a multi-access scenario. The investigations take into account co-channel interference as well as spatial correlation and mutual coupling (MC) present in array antennas. A closed-form expression for the upper bound of the mutual information is presented. An optimal signal transmission scheme is proposed to maximize the MIMO capacity. The presented simulation results report on the effect of interference and mutual coupling for the cases of non-optimized and optimized signal transmission schemes. Also shown is performance comparison between the cases of peer-to-peer single user and multi-access MIMO system.
Keywords :
MIMO communication; antenna arrays; cochannel interference; multi-access systems; MIMO system capacity; array antennas; closed-form expression; cochannel interference; multi-access system; multiple-input multiple-output systems; mutual coupling; optimal signal transmission scheme; peer-to-peer single-user MIMO system; spatial correlation; Antenna arrays; Australia; Channel capacity; Closed-form solution; Interchannel interference; MIMO; Mutual coupling; Mutual information; Transmitters; Upper bound; Channel capacity; MIMO systems; Multiaccess communication; Mutual coupling;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384181
