Results 31 to 40 of about 614 (135)
IET Communications, Volume 15, Issue 16, Page 2097-2110, October 2021., 2021 Abstract As a contention‐free channel access protocol, Time Division Multiple Access (TDMA) is widely applied in Energy Harvesting Wireless Sensor Networks (EH‐WSNs) due to ease of implementation. TDMA scheduling in EH‐WSNs faces the problem of low channel utilization since time slots assigned to some nodes may not be used by them due to shortage of ...
Siliang Gong +4 more
wiley +1 more source
A novel model to eliminate the doubly near‐far problem in wireless powered communication network
IET Communications, Volume 15, Issue 12, Page 1539-1547, July 2021., 2021 Abstract In this paper, the newly emerging wireless powered communication network is studied. In doing so, the performance of the global controller (GC) is evaluated, which coordinates the wireless energy transmissions between two sensor nodes. Both the sensors have the same harvested energy for uplink (UL) transmission of information through time ...
Jitendra Singh +3 more
wiley +1 more source
IEEE Access, 2019 Wireless powered communication networks are promising in the next generation wireless communication systems since they can prolong the communication time of users.
Zhen Wang +3 more
doaj +1 more source
IET Communications, Volume 15, Issue 12, Page 1620-1631, July 2021., 2021 Abstract Integrating backscatter communication (BackCom) into wireless powered communication networks (WPCNs) makes it possible to transmit information and harvest energy simultaneously, which is regarded as a promising method to enhance the throughput.
Juan Sun, Shubin Zhang, Kaikai Chi
wiley +1 more source
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 The Internet of things (IoT) has emerged as a platform for connecting massive physical devices to collect and analyze data for decision‐making. Wireless devices in IoT are usually energy‐constrained and thus need to be powered by a stable and reliable energy source in order to maintain a long network lifetime.
Xiaofei Di, Yang Chen, Dung Le
wiley +1 more source
Resource Allocation Techniques for Wireless Powered Communication Networks with Energy Storage Constraint [PDF]
, 2015 This paper studies multi-user wireless powered communication networks, where energy constrained users charge their energy storages by scavenging energy of the radio frequency signals radiated from a hybrid access point (H-AP). The energy is then utilized
Clerckx, Bruno +4 more
core +2 more sources
Optimization and Analysis of Wireless Powered Multi-antenna Cooperative Systems [PDF]
, 2017 In this paper, we consider a three-node cooperative wireless powered communication system consisting of a multi-antenna hybrid access point (H-AP) and a single-antenna relay and a single-antenna user.
Liang, Han +4 more
core +2 more sources
Optimal Time Allocation in Multi-Cell Wireless Powered Communication Networks
IEEE Access, 2019 This paper focuses on time allocation to maximize the minimum throughput and sum-throughput of all users in a multi-cell wireless powered communication network (WPCN).
Chunlong He +4 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2018 This paper proposes a large-scale wireless powered communication network (WPCN), which consists of a hybrid access point (H-AP) and numerous nodes. The H-AP broadcasts energy to all nodes, and the nodes harvest the energy and then use the harvested ...
Sungryung Cho +3 more
doaj +1 more source
Throughput Optimization for Massive MIMO Systems Powered by Wireless Energy Transfer [PDF]
, 2015 This paper studies a wireless-energy-transfer (WET) enabled massive multiple-input-multiple-output (MIMO) system (MM) consisting of a hybrid data-and-energy access point (H-AP) and multiple single-antenna users. In the WET-MM system, the H-AP is equipped
Guan, Yong Liang +3 more
core +1 more source