Relay Selection for Radio Frequency Energy-Harvesting Wireless Body Area Network With Buffer

Relay Selection for Radio Frequency Energy-Harvesting Wireless Body Area Network With Buffer
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带缓冲器的射频能量采集无线体域网的中继选择

DOI:
10.1109/jiot.2017.2788207
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发表时间:
2018-04
影响因子:
10.6
通讯作者:
Chen Minghui
Chen Minghui
中科院分区:
计算机科学1区
文献类型:
--
作者:
Sui Dan;Hu Fengye;Zhou Wei;Shao Meiqi;Chen Minghui

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提出了一种基于缓冲区的能量收集无线体域网中继选择协议,该协议综合考虑了中继节点的能量和信道状态信息。中继节点从接收到的射频信号中获取能量,然后中继节点消耗所获取的能量来向目的节点发送信息。在该中继选择协议中,选择能量最大的中继接收信息,从候选中继中选择具有最佳中继-目的地信道的中继进行传输。该协议可以降低由于信道失配问题而导致的中继选择不当的风险,避免同一中继的过度使用。中断概率被用来衡量系统的性能。我们研究的中断概率的最佳中继选择协议的时间切换和功率分裂计划,分别。数值结果表明,该协议显着优于传统的中继选择协议。
In this paper, a relay selection protocol for energy harvesting wireless body area network with buffer is proposed, that considers both the energy of relay nodes and channel state information. The relay node harvests energy from the received radio-frequency signals, then the relay node consumes the harvested energy to transmit information to the destination node. In the proposed relay selection protocol, the relay with the most energy is selected to receive information, the relay with the best relay-destination channel is selected from candidate relays for transmission. The proposed protocol can mitigate the risk of inappropriate relay selection due to channel mismatch problem and avoid the overuse of the same relay. The outage probability is used to measure the system performance. We investigate the outage probability of the optimal relay selection protocol in the time switching and power splitting schemes, respectively. Numerical results show that the proposed protocol significantly outperforms conventional relay selection protocols.
具有能量收集功能的 WBAN 中的点对点无线信息和电力传输
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