计算机科学
多输入多输出
发射机
最大功率转移定理
信道状态信息
无线
吞吐量
最大化
解码方法
发射机功率输出
频道(广播)
能量收集
电子工程
能量(信号处理)
功率(物理)
算法
电信
数学优化
数学
工程类
物理
统计
量子力学
作者
Shuaishuai Guo,Haixia Zhang,Ying Wang,Dongfeng Yuan
标识
DOI:10.1109/glocom.2016.7842282
摘要
This paper proposes a spatial modulated simultaneous wireless information and power transfer (SM SWIPT) scheme to save multiple radio frequency (RF) chains at the transmitter. As SM is adopted, only one RF chain is equipped at the transmit side. To harvest energy and in the same time to transfer information, the received signal is split into two parts according to the defined power splitting factors. The power splitting factors are determined by maximizing the throughput of the information decoding (ID) receiver under the given energy harvesting (EH) constraint. An iterative power splitting algorithm (ISPA) is developed to solve the maximization problem. Its performance is investigated through simulations. In addition, the computational complexity of the proposed algorithm is analyzed. Results show the superiority of the proposed SM SWIPT in throughput through comparison with single-input multiple-output (SIMO) SWIPT and beamformed MIMO SWIPT. What is more, unlike the conventional beamformed MIMO SWIPT that requires perfect channel state information at the transmitter (CSIT), the proposed scheme is open loop and requires no any CSIT, thus can further enhance the superiority in energy efficiency.
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