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arXiv 1503.06574cs.ITmath.IT
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具有无线能量收集的AF中继网络的动态功率分配策略

Dynamic Power Splitting Policies for AF Relay Networks with Wireless Energy Harvesting

Lansheng Hu, Chao Zhang, Zhiguo Ding

摘要:

无线能量收集(WEH)提供了一种令人兴奋的方式来为中继节点提供能量,以转发源-目的地对的信息。在本文中,我们研究的问题,中继节点如何动态地调整信息传输(IT)和能量收集(EH)的功率分配比,以达到最佳的中断性能。根据中继节点的信道状态信息,分别给出了完整信道状态信息和部分信道状态信息下的最优动态功率分配策略。最后,通过仿真,提出的功率分配策略可以改善中断性能,并与完整的CSI策略达到最佳性能。同时,部分CSI策略可以接近完全CSI策略,并且系统开销要小得多。

英文摘要:

Wireless energy harvesting (WEH) provides an exciting way to supply energy for relay nodes to forward information for the source-destination pairs. In this paper, we investigate the problem on how the relay node dynamically adjusts the power splitting ratio of information transmission (IT) and energy harvesting (EH) in order to achieve the optimal outage performance. According to the knowledge of channel state information (CSI) at the relay, optimal dynamic power splitting policy with full CSI and partial CSI are both provided. Finally, through simulations, the proposed power splitting policies can improve the outage performances and the policy with full CSI achieves the best performance. It is also shown that the policy with partial CSI can approach the policy with full CSI closely and incurs far less system overhead.

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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