Switching between multiplexing and diversity in MIMO systems with QoS provisioning
XIE Ren-chao, JiHong, LiXi
School of Information and Telecommunications Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
Abstract:
Multiple-input multiple-output (MIMO) wireless communication systems can significantly improve the spectrum efficiency or transmission reliability through spatial multiplexing or diversity respectively.Most of previous works mainly have focused on the multiplexing-diversity tradeoff or switching between multiplexing and diversity without considering the property of heterogeneous QoS provisioning.In this paper,switching between multiplexing and diversity in MIMO system with the heterogeneous QoS provisioning is studied.Firstly the QoS provisioning for users are classified into two classes:users with real time service requirement and users with non-real time service requirement respectively.Then based on the heterogeneous QoS Provisioning for users,two different switching criterions are proposed,switching based on the Euclidean distance for users with real time service to minimize the probability of symbol error and capacity-based switching criterion for users with non-real time service to maximize the transmission capacity respectively.Finally,numerical simulation results are illustrated to demonstrate the performance of proposed scheme.
Key words: multiple-input multiple-output (MIMO) spatial multiplexing MIMO diversity QoS provisioning
DOI：10.11916/j.issn.1005-9113.2011.06.007
Clc Number:TN919.3
Fund:
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Switching between multiplexing and diversity in MIMO systems with QoS provisioning
本站小编 哈尔滨工业大学/2019-10-23
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