Joint Data and Energy Transmission in a Two-Hop Network With Multiple Relays
Joint Data and Energy Transmission in a Two-Hop Network With Multiple Relays
复制标题
具有多个中继的两跳网络中的联合数据和能量传输
DOI:
10.1109/lcomm.2014.2360203
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发表时间:
2014-09
期刊:
影响因子:
--
通讯作者:
Xiaodong Wang
中科院分区:
文献类型:
--
作者:
Lan Tang;Xinggan Zhang;Xiaodong Wang
Wireless energy transfer (WET) is a promising technique to prolong the lifetime of an energy-constrained wireless network. In this paper, we consider a two-hop communication system with multiple relay nodes powered by WET. To minimize the transmission time, we propose an optimal transmission scheme, in which the relay nodes adopt a “harvest-then-decode and forward” policy. The optimal transmission time allocation of the source and each relay node is calculated by a linear program under causality constraints on both data and energy arrivals. The analytical and simulation results reveal the relationship between the optimal time allocation and system parameters.
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