Results 41 to 50 of about 7,697,882 (172)

Opportunistic energy trading between co-located energy-harvesting wireless sensor networks [PDF]

open access: yes, 2013
Wireless sensor networks are increasingly using energy harvesting to extend their lifetime and avoid battery replacement. However, ambient energy sources typically exhibit temporal-spatial variation, and complex power management algorithms have been ...
Geoff V. Merrett   +5 more
core   +1 more source

Time Allocation and Optimization in Time-Reversal Wireless Powered Communication Networks

open access: yesInternational Journal of Antennas and Propagation, 2020
This paper studies optimal resource allocation in the wireless powered communication networks (WPCN) combined with time reversal (TR) in which one hybrid access point (H-AP) broadcasts constant wireless energy to a set of distributed users in the ...
Fangwei Li, Yue Wu, Yifang Nie, Ce Shi
doaj   +1 more source

Backscatter Communication for Wireless-Powered Communication Networks

open access: yesThe Journal of Korean Institute of Communications and Information Sciences, 2015
In this paper, we introduce backscatter communication for power-limited sensors to enable long-range transmission in wireless sensor networks, and envision a way to avoid doubly near-far problem in wireless-powered communication network (WPCN) with this technology.
Shin Hyuk Choi, Dong In Kim
openaire   +2 more sources

Maximizing Ergodic Throughput in Wireless Powered Communication Networks [PDF]

open access: yes2018 IEEE Global Communications Conference (GLOBECOM), 2018
This paper considers a single-antenna wirelesspowered communication network (WPCN) over a flat-fading channel. We show that, by using our probabilistic harvestand-transmit (PHAT) strategy, which requires the knowledge of instantaneous full channel state information (CSI) and fading probability distribution, the ergodic throughput of this system may be ...
Arman Ahmadian, Hyuncheol Park
openaire   +3 more sources

Adaptive transmission power control scheme for wireless sensor networks [PDF]

open access: yes, 2011
Wireless communication is the major energy consumer compared to computation and sensing operations performed by a battery-powered wireless sensor node.
Dixon, M.W., Daabaj, K., Koziniec, T.
core  

Unified clustering and communication protocol for wireless sensor networks [PDF]

open access: yes, 2008
In this paper we present an energy-efficient cross layer protocol for providing application specific reservations in wireless senor networks called the “Unified Clustering and Communication Protocol ” (UCCP). Our modular cross layered framework satisfies
Aslam, Nauman   +2 more
core  

Energy- and information-managed wireless sensor networks: modelling and simulation

open access: yes, 2008
Wireless Sensor Networks (WSNs) allow the remote and distributed monitoring of parameters in their deployed environment. WSNs are receiving increasing research interest, due to their ability to enable a wide range of applications, and their potential to ...
Merrett, Geoff V.
core   +1 more source

Relay participated–new-type building energy management system: An energy-efficient routing scheme for wireless sensor network–based building energy management systems

open access: yesInternational Journal of Distributed Sensor Networks, 2017
With the development of wireless sensor networks, many building energy management systems are getting to adopt wireless sensor network as their communication infrastructure.
Kewang Zhang, Qizhao Wu, Xin Li
doaj   +1 more source

Minimum power configuration for wireless communication in sensor networks

open access: yesACM Transactions on Sensor Networks, 2007
This article proposes the minimum power configuration (MPC) approach to power management in wireless sensor networks. In contrast to earlier research that treats different radio states (i.e., transmission/reception/idle) in isolation, MPC integrates them in a joint optimization problem that depends on both the set ...
Xing, Guoliang   +4 more
openaire   +4 more sources

Low power consumption wireless sensor communication system integrated with an energy harvesting power source

open access: yes, 2013
This paper presents the testing results of a wireless sensor communication system with low power consumption integrated with an energy harvesting power source.
Marsic, Vlad   +2 more
core   +6 more sources

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