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A near-far resistant sliding window decorrelating algorithm for multi-user detectors in DS-CDMA systems

机译:DS-CDMA系统中多用户检测器的抗远近滑动窗解相关算法

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摘要

The limitations of conventional multiuser detectors in direct-sequence code-division multiple-access (DS-CDMA) networks have been recognized. The conventional detector has been acknowledged to be particularly susceptible to multiuser interference and hence the near-far problem. The development of a near-far resistant decorrelating algorithm for application in practical networks is detailed. A mobile radio environment where received user energies can be dissimilar and time varying (a near-far environment) is considered. In particular, the algorithm is targeted at multiple-access (MA) limited operating conditions which are often found in systems with a large number of users. The performance of the algorithm is simulated in additive white Gaussian noise (AWGN), fading, and mobile radio channels
机译:已经认识到常规多用户检测器在直接序列码分多址(DS-CDMA)网络中的局限性。公认的传统检测器特别容易受到多用户干扰,因此存在远距离问题。详细介绍了在实际网络中应用的抗远距离解相关算法的开发。考虑了接收到的用户能量可能不同并且随时间变化的移动无线电环境(近距离环境)。特别地,该算法针对多访问(MA)受限的操作条件,该条件通常在具有大量用户的系统中发现。在加性高斯白噪声(AWGN),衰落和移动无线信道中模拟了算法的性能

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