Results 251 to 260 of about 14,869 (291)

Potential well hopping and performance of ocean energy harvesters

Journal of Sound and Vibration, 2020
Abstract This paper examines a gimballed horizontal pendulum and studies how it can be used to harvest energy from ocean waves. The system's behavior is analyzed under both static and dynamic scenarios. Threshold escape behavior for parametrically excited systems with a time dependent term in the potential energy function is discussed and a criterion
Dane Sequeira, Brian P. Mann
openaire   +1 more source

Throughput maximization in two-hop energy harvesting communications

2015 International Symposium on Wireless Communication Systems (ISWCS), 2015
Two-hop energy harvesting communications are considered. The scenario consists of a source node which wants to send data to a destination node through a half-duplex amplify-and-forward relay station. The source node and the relay station harvest energy from the environment several times and use it to transmit the data.
Andrea Ortiz, Hussein Al-Shatri, null Xiang Li, Tobias Weber, Anja Klein   +4 more
openaire   +1 more source

Throughput maximization for energy harvesting two-hop networks

2013 IEEE International Symposium on Information Theory, 2013
In wireless networks, management of harvested energy is important due to limited and stochastic energy sources. In this paper, throughput maximization for energy harvesting two-hop communication with half-duplex relays is considered. Optimal transmission policies are found for one relay and two parallel relays under the assumption of known energy ...
Oner Orhan, Elza Erkip
openaire   +1 more source

Multi-hop Data Fragmentation in Energy Harvesting Wireless Sensor Networks

2020 Global Internet of Things Summit (GIoTS), 2020
In this work, we utilize multi-hop data fragmentation in energy harvesting wireless sensor networks (EHWSN) for improved security and routing.1 Data fragmentation is a secure data management and data provisioning technique used in unattended sensor networks.
Keun-Woo Lim, Katarzyna Kapusta, Gerard Memmi, Woo-Sung Jung   +3 more
openaire   +1 more source

Throughput maximization for two-hop energy harvesting communication systems

2013 IEEE International Conference on Communications (ICC), 2013
Energy harvesting (EH) has recently emerged as a promising technique for green communications. To realize its potential, communication protocols need to be redesigned to combat the randomness of the harvested energy. In this paper, we investigate how to apply relaying to improve the short-term performance of EH communication systems.
Yaming Luo, Jun Zhang, Khaled B. Letaief
openaire   +1 more source

Hop-by-Hop cooperative detection of selective forwarding attacks in energy harvesting wireless sensor networks

2015 International Conference on Computing, Networking and Communications (ICNC), 2015
Due to the lack of physical protections and security requirements of the network routing protocols, Wireless Sensor Networks (WSNs) are vulnerable to Denial-of-Service (DoS) attacks. Inherent resource constraints also hinder WSNs from deploying conventional encryption schemes and secure routing protocols.
Sunho Lim, Lauren Huie
openaire   +1 more source

Resource allocation for two-hop communication with energy harvesting constraints

2015 International Conference on Wireless Communications & Signal Processing (WCSP), 2015
In this paper, we consider a two-hop communication system model, where a source is able to harvest energy and a relay is non-EH half-duplex node over a fading channel. We address the throughput maximization problem for the proposed system model with and without delay tolerant.
Mohammed Baljon, Lian Zhao
openaire   +1 more source

Energy harvesting-based two-hop D2D communication in cellular networks

2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016
Powering device-to-device (D2D) communications by the radio frequency (RF) energy, harvested from the ambient interference of the underlaid cellular network, improves the energy efficiency of the network. In the recent works, the D2D transmitters can successfully communicate with their intended receivers only when there is sufficient harvested energy ...
Pooja Lakhlan, Aditya Trivedi
openaire   +1 more source

Fair Scheduling of Two-Hop Transmission with Energy Harvesting

2018
In this paper, we consider a two-hop network with a source node (SN) and a relay node (RN) who want to communicate data to a destination node (DN). The SN cannot be directly connected to the DN, but rather is connected only via the RN. The RN does not have an external source of energy, and thus needs to harvest energy from the SN to communicate, while ...
Andrey Garnaev, Wade Trappe
openaire   +1 more source

Fresh Hops Harvesting and Handling Tips

2018
Discusses ways of harvesting and handling fresh hops, and provides a checklist of tips.
Siegle, Laura, Scoggins, Holly L., Vallotton, Amber   +2 more
openaire   +1 more source