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arXiv 1803.04651cs.ITmath.IT
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基于压缩感知的下行NOMA系统用户分簇算法

Compressive Sensing Based User Clustering for Downlink NOMA Systems with Decoding Power

Zhaohui Yang, Cunhua Pan, Wei Xu, Ming Chen

摘要:

这封信研究了下行链路非正交多址系统的联合功率控制和用户分簇。我们的目标是最大限度地减少总功耗,不仅考虑到传统的传输功率,但也解码功率的用户。为了解决这一优化问题,它首先转化为一个等价的问题,易于处理的约束。然后,提出了一个有效的算法来解决等价的问题,通过使用加权1-范数最小化和优化最小化技术。数值结果验证了该算法优于传统的算法,包括流行的基于匹配的算法。

英文摘要:

This letter investigates joint power control and user clustering for downlink non-orthogonal multiple access systems. Our aim is to minimize the total power consumption by taking into account not only the conventional transmission power but also the decoding power of the users. To solve this optimization problem, it is firstly transformed into an equivalent problem with tractable constraints. Then, an efficient algorithm is proposed to tackle the equivalent problem by using the techniques of reweighted 1-norm minimization and majorization-minimization. Numerical results validate the superiority of the proposed algorithm over the conventional algorithms including the popular matching-based algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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