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Enhanced OFDM Distributed Antenna Systems through Power Redistribution

Abstract : Distributed antenna systems (DAS) have the advantages of achieving low system costs in deployment, operation, and management. While a simple blanket transmission scheme in DAS shows poor performance, several practical limitations prevent the beamforming scheme in DAS from being adopted in the existing systems. By taking advantages of spatial proximity and diversity between different radio equipments (REs) and mobile stations in DAS, we propose a novel approach to enhance the system capacity of orthogonal frequency division multiplexing (OFDM) DAS through power coordination between REs. In comparison with standalone base station deployment, blanket transmission scheme, and beamforming scheme, our proposal achieves higher system capacity by 35.9%, 82.2% and 14.2%, respectively.
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Wei-Peng Chen, Chenxi Zhu, Takao Naito. Enhanced OFDM Distributed Antenna Systems through Power Redistribution. 9th Wired/Wireless Internet Communications (WWIC), Jun 2011, Vilanova i la Geltrú, Spain. pp.259-271, ⟨10.1007/978-3-642-21560-5_22⟩. ⟨hal-01583667⟩

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