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OALib Journal期刊
ISSN: 2333-9721
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Investigation of Uplink Performances Based on Switched Beam Antenna in TDD-CDMA Systems
基于波束切换型智能天线技术的TDD-CDMA系统上行链路性能研究

Keywords: TDD-CDMA
智能天线
,波束切换,接入控制,上行链路容量

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Abstract:

The switched beam antenna is analyzed and its model in system level is presented. Based on analyzing the impact of multi-user detection (MUD) and switched beam antenna on the uplink capacity in TDD-CDMA systems, a novel uplink admission control algorithm is proposed. The theoretical and simulation results show that MUD and the number of antenna element have a great impact on uplink performance. The proposed scheme can provide higher gain for TDD-CDMA if the proper noise rise threshold is set.

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