Results 181 to 190 of about 7,897 (214)

Backscatter radio communication for wireless powered communication networks

2015 21st Asia-Pacific Conference on Communications (APCC), 2015
Backscatter radio communication has become a newly emerging technique for low-rate, low-power and large-scale wireless sensor networks. As this promising technology enables a long-range communication for sensors with low power in a distributed area, it is desirable to support wireless powered communication networks (WPCNs) that experience doubly near ...
Shin Hyuk Choi, Dong In Kim 0001
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Power–Delay Tradeoff in Wireless Powered Communication Networks

IEEE Transactions on Vehicular Technology, 2017
In this paper, we investigate the power–delay tradeoff for the newly emerging wireless powered communication networks, in which wireless powered devices (WPDs) harvest energy from a power station via wireless energy transfer in the downlink and then communicate with an information receiving station in the uplink.
Jian Yang 0027, Qinghai Yang, Kyung Sup Kwak, Ramesh R. Rao   +3 more
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Link Scheduling in Wireless Powered Communication Networks

2020 International Conference on Computing, Networking and Communications (ICNC), 2020
We consider a Hybrid Access Point (HAP) that is equipped with a Successive Interference Cancellation (SIC) radio, and Radio Frequency (RF) energy harvesting devices. The HAP is responsible for charging and collecting data from these devices. A fundamental problem at the HAP is scheduling uplink transmissions.
Ying Liu 0033, Kwan-Wu Chin, Changlin Yang   +2 more
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Hybrid backscatter communication for wireless powered communication networks

2016 International Symposium on Wireless Communication Systems (ISWCS), 2016
We propose hybrid backscatter communication for wireless powered communication networks (WPCNs) to increase transmission range and provide uniform rate distribution in heterogeneous network (HetNet) environment. In such HetNet where the TV tower or high-power base station (macrocell) coexists with densely deployed small-power access points (e.g., small-
Sung Hoon Kim 0003, Dong In Kim 0001
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Wireless powered communication networks in interference channel

2017 IEEE International Conference on Communications (ICC), 2017
In this paper, we study a wireless powered communication network (WPCN) in a two-user interference channel, where two hybrid access-points (H-APs) support a user in each cell. In this two cell scenario, the H-APs first transmit the energy signal to charge both users in the downlink (DL) phase.
Hanjin Kim, Hoon Lee, Inkyu Lee
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Learning AP in wireless powered communication networks

International Journal of Communication Systems, 2019
SummaryIn a wireless powered communication network (WPCN), sensor nodes harvest energy to transmit information. By a harvest‐then‐transmit (HT) protocol, nodes can be classified into either energy receiving (ER) or data transmitting (DT) nodes depending on the current level of the harvested energy.
Arshad Iqbal, Yunmin Kim, Tae-Jin Lee 0001   +2 more
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Mobile power management for wireless communication networks

Wireless Networks, 1997
For fixed quality-of-service constraints and varying channel interference, how should a mobile node in a wireless network adjust its transmitter power so that energy consumption is minimized? Several transmission schemes are considered, and optimal solutions are obtained for channels with stationary, extraneous interference.
John M. Rulnick, Nicholas Bambos
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Opportunistic Scheduling in Wireless Powered Communication Networks

IEEE Transactions on Wireless Communications, 2017
In this paper, we apply the notion of opportunistic scheduling in wireless-powered communication networks (WPCNs). The considered WPCN model consists of a base station (BS) and multiple energy harvesting users (EHUs), where the BS broadcasts radio frequency energy to the EHUs over the downlink and receives information from the EHUs over the uplink.
Zoran Hadzi-Velkov, Ivana Nikoloska, Hristina Chingoska, Nikola Zlatanov   +3 more
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Analysis and Power Scheduling Algorithm in Wireless Powered Communication Networks

2020 16th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2020
Wireless powered communication networks (WPCN) which allow an energy source (ES) to wirelessly transfer its power to a wireless device (WD) is becoming a promising technology in modern wireless networks. Besides extending network longevity, WPCN eliminates the need for frequent manual battery replacement or recharging. Even WPCN is a potential solution,
Nga Dinh, Øystein Haugen
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Age-Energy Region in Wireless Powered Communication Networks

IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2020
This paper explores the age-energy region in a wireless powered communication network (WPCN), where an Internet of things (IoT) device works in a “harvest-then-transmit” protocol, in which the IoT device first harvests energy from radio-frequency (RF) signals transmitted by a hybrid access point (HAP) via wireless power transfer (WPT), and then ...
Haina Zheng, Ke Xiong 0001, Pingyi Fan, Zhangdui Zhong, Khaled Ben Letaief   +4 more
openaire   +1 more source