协同分布式天线系统下多播/广播业务的动态功率分配

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI:10.1109/PIMRC.2011.6139892

P. Kuo, Pangan Ting

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引用次数: 0

摘要

当分布式天线系统(DAS)的总发射功率受限时，为了优化性能，应合理配置远程无线电头(rhh)之间的下行功率分配，以实现组播/广播业务(MBS)。本文推导了单天线和多天线情况下最大最小公平性的功率分配准则，当基站对所有用户具有完善的大规模衰落知识时，可作为功率分配指标。我们还提出了一种替代方法，适用于只允许有限反馈的场景。与统一的功率分配相比，这两种方法都提供了更好的停机性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Dynamic power allocation for multicast/broadcast services with cooperative distributed antenna systems

When the total transmit power for a distributed antenna system (DAS) is constrained, downlink power allocation among remote radio heads (RHHs) should be judiciously configured for multicast/broadcast services (MBS), in order to optimize the performance. The paper derives power allocation criteria for max-min fairness in single-antenna and multi-antennas cases, which can be served as power allocation metrics when the BS has perfect large-scale fading knowledge of all users. We also propose an alternative method that is appropriate for scenarios where only limited feedback is allowed. Both methods provide better outage performance as compared to uniform power allocation.

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2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications

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