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中文摘要：
提出了一种将智能天线应用到小基站网络中的方案，配置有智能天线的小基站在周围小基站繁忙时利用智能天线的方向性为业务繁忙的小基站进行自适应分流，达到负载均衡的目的．当本身业务繁忙时，通过智能天线进行空分复用可提高带宽利用率，从而提高系统吞吐量，减少基站数目．实验结果表明：在保证用户接入成功率和系统吞吐量的条件下，采用文中小基站自适应算法可将所需部署的小基站数目约减少30％，从而降低了部署成本，减少运行能耗．
英文摘要：
This paper proposes a method to use smart antenna to small cell architecture. Small cells equipped with smart antennas can offioad traffic for nearby busy small cells and balance system traffic load adaptively. These small cells also take advantage of space division multiplexing （SDM）. The proposed architecture can help improve user access rate and system throughput, and reduce the number of small cells. Simulation results show that, compared with existing schemes, the proposed adaptive algorithm can reduce the number of small cells by approximately 30% while maintaining the required user access rate and system throughput, thus reducing deployment costs and energy consumption.
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