计算机科学
无线
计算机网络
软件部署
继电器
可靠性(半导体)
无线网络
电子工程
电信网络
网络拓扑
分布式计算
电信
工程类
功率(物理)
物理
量子力学
操作系统
作者
Qiang Wang,Yuzhuo Ma,Chenglong Zhang,Tang Liu,Jilin Yang,Dié Wu
标识
DOI:10.1109/wcnc55385.2023.10118600
摘要
Without the need for batteries, backscatter-based Wireless Powered Communication Network (WPCN) has been envisioned as a promising alternative to conventional wireless networks. Unfortunately, the unique phase cancellation problem in backscatter-based WPCN is essentially a phenomenon that severely affects connectivity and reliability of the network. Many arts have tried to tackle this issue either by using multiple antennas to employ the signal diversity, which increases the size and is not cost-efficient, or by making a repetition of the same information with different load impedances, which significantly decreases the throughput of network. In our paper, we propose an effective deployment scheme, aiming to fundamentally eliminate the phase cancellation problem. Specifically, we first build a practical communication model seeking the blind areas caused by phase cancellation. Then, a greedy algorithm and a minimum-weight graph based algorithm are proposed to elaborate topology of the network to ensure the connectivity. Finally, extensive experiments are carried out to evaluate the performance.
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