多徑CDMA信道下的一種改進(jìn)的盲空時(shí)多用戶檢測(cè)
An improved blind space-time multiuser detection in multipath CDMA channels
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摘要: 該文在多徑CDMA信道下基于Rosen梯度投影實(shí)現(xiàn)的最小均方盲空時(shí)多用戶檢測(cè)方法的基礎(chǔ)上提出了一種改進(jìn)的方法,該方法與原有的方法相比,運(yùn)算量有所降低、對(duì)系統(tǒng)的要求降低,但通過(guò)仿真結(jié)果比較表明,該方法的檢測(cè)性能與原有的方法大致相當(dāng),因而更加具有競(jìng)爭(zhēng)力。
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關(guān)鍵詞:
- 空時(shí)處理; 盲多用戶檢測(cè); 直接序列CDMA
Abstract: An improved LMS blind space-time multiuser detection method based on the Rosens gradient projection to realize in multipath CDMA channels is presented. Comparison with the original method, the proposed method has advantages in complexity and requirement of the system. However, the results of simulation comparison illustrate that the detection performance of the proposed multiuser space-time processing method do not deteriorate, and prove that this method has advantage over the original method in the competition of market. -
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