(東南大學 信息科學與工程學院，江蘇 南京 210096)
摘 要：該文提出一種TD-SCDMA系統中基于智能天線技術的聯合傳輸算法。與傳統基于多天線的聯合傳輸技術不同，該算法充分考慮了智能天線下行波束賦形對系統性能的影響。在OTIA信道下分別對傳統的聯合檢測算法和新的與智能天線相結合的聯合傳輸算法進行誤碼率性能仿真，仿真結果表明采用新的聯合傳輸技術的誤碼率性能比聯合檢測好1dB左右。
關鍵詞：TD-SCDMA；聯合傳輸；聯合檢測；智能天線；
Smart Antenna based Joint Transmission Algorithm in TD-SCDMA Systems
LIU Chao， Hu Aiqun，Song Xiaoqin
（Institute of Information Science and Engineering, Southeast University, Nanjing 210096)
Abstract：A smart antenna based joint transmission algorithm in TD-SCDMA systems was proposed. Compared with traditional joint transmission technology based on multi-antenna, the proposed algorithm takes the effect of downlink beamforming of smart antenna on system performance into account. To evaluate the performance of traditional joint detection algorithm and smart antenna based joint transmission algorithm, the BER performance is simulated on OTIA channel, and result shows that the proposed algorithm has a better performance of about 1dB.
Key words：TD-SCDMA; joint transmission; joint detection; smart antenna;
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作者簡介：
劉 超, 博士生, 研究方向:無線移動通信網絡.
胡愛群, 教授, 研究方向:無線網絡通信，信息安全.
宋曉勤, 博士, 副教授, 研究方向: 移動通信中的無線資源管理.
