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Capacity Analysis of Multiuser Diversity Combined with Dual MIMO Systems
Myoung-Won LEE Cheol MUN Jong-Gwan YOOK
IEICE TRANSACTIONS on Communications
Publication Date: 2007/02/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MIMO systems, spatial multiplexing, multiuser diversity, space diversity,
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In this letter, the system capacity of multiuser diversity combined with spatial multiplexing schemes is analyzed. An analytic expression is derived for the ergodic system capacity with multiuser scheduling and dual multi-input multi-output (MIMO) systems by using a tight lower bound of the link capacity. The proposed analytic approach is verified through comparisons between analytic and simulated results, and is shown to make fairly precise predictions of the ergodic system capacity and the scheduling gains even when the numbers of antennas and users are small.