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Journal articles on the topic 'Wakeup'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Amirinasab Nasab, Mehdi, Shahaboddin Shamshirband, Anthony Chronopoulos, Amir Mosavi, and Narjes Nabipour. "Energy-Efficient Method for Wireless Sensor Networks Low-Power Radio Operation in Internet of Things." Electronics 9, no. 2 (February 12, 2020): 320. http://dx.doi.org/10.3390/electronics9020320.

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The radio operation in wireless sensor networks (WSN) in Internet of Things (IoT) applications is the most common source for power consumption. Consequently, recognizing and controlling the factors affecting radio operation can be valuable for managing the node power consumption. Among essential factors affecting radio operation, the time spent for checking the radio is of utmost importance for monitoring power consumption. It can lead to false WakeUp or idle listening in radio duty cycles and ContikiMAC. ContikiMAC is a low-power radio duty-cycle protocol in Contiki OS used in WakeUp mode, as a clear channel assessment (CCA) for checking radio status periodically. This paper presents a detailed analysis of radio WakeUp time factors of ContikiMAC. Furthermore, we propose a lightweight CCA (LW-CCA) as an extension to ContikiMAC to reduce the Radio Duty-Cycles in false WakeUps and idle listening though using dynamic received signal strength indicator (RSSI) status check time. The simulation results in the Cooja simulator show that LW-CCA reduces about 8% energy consumption in nodes while maintaining up to 99% of the packet delivery rate (PDR).

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2

Lee, Sang Hoon, and Lynn Choi. "ZeroMAC: Toward a zero sleep delay and zero idle listening media access control protocol with ultralow power radio frequency wakeup sensor." International Journal of Distributed Sensor Networks 13, no. 8 (August 2017): 155014771771639. http://dx.doi.org/10.1177/1550147717716397.

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In wireless sensor networks, duty cycling has been an imperative choice to reduce idle listening but it introduces sleep delay. To break through the energy-latency tradeoff, we propose a pair of a radio wave sensor called radio frequency wakeup sensor and an on-demand media access control protocol called ZeroMAC. Radio frequency wakeup sensor is dedicated to sense the presence of a signal. The distinctive feature is that the sensor can provide the same sensitivity while it consumes only two orders of magnitude less energy than the underlying radio frequency module. With the sensor, a node no longer requires duty cycling. We also propose an on-demand media access control protocol called ZeroMAC that can effectively utilize the on-demand wakeup functionality of a radio frequency wakeup sensor by broadcasting a dedicated signal to wake up nodes before starting a communication. Since each node can notify neighbor nodes of a communication immediately, ZeroMAC can eliminate both idle listening and sleep delay. ZeroMAC wakes up only the nodes on the communication path by propagating wakeup signals in a hop-by-hop manner, avoiding unnecessary signal flooding. To further save energy, ZeroMAC can turn off radio frequency module as soon as it detects the end of communication. According to packet level simulation results, ZeroMAC can deliver data packets at least 1.87 times faster by eliminating both idle listening and sleep delay while it consumes only 3% of the energy compared to X-MAC and A-MAC.

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3

Ahmed, Minhaz, Torben Dankwort, Sven Grünzig, Volker Lange, and Björn Gojdka. "Broadband Zero-Power Wakeup MEMS Device for Energy-Efficient Sensor Nodes." Micromachines 13, no. 3 (March 2, 2022): 407. http://dx.doi.org/10.3390/mi13030407.

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A zero-power wakeup scheme for energy-efficient sensor applications is presented in this study based on a piezoelectric MEMS energy harvester featuring wafer-level-integrated micromagnets. The proposed setup overcomes a hybrid assembly of magnets on a chip-level, a major drawback of similar existing solutions. The wakeup device can be excited at low frequencies by frequency up-conversion, both in mechanical contact and contactless methods due to magnetic force coupling, allowing various application scenarios. In a discrete circuit, a wakeup within 30–50 ms is realized in frequency up-conversion at excitation frequencies < 50 Hz. A power loss in the off state of 0.1 nW renders the scheme virtually lossless. The potential extension of battery lifetime compared to cyclical wakeup schemes is discussed for a typical wireless sensor node configuration.

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4

Fischer, Michael J., Shlomo Moran, Steven Rudich, and Gadi Taubenfeld. "The Wakeup Problem." SIAM Journal on Computing 25, no. 6 (December 1996): 1332–57. http://dx.doi.org/10.1137/s0097539793254959.

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5

Pak, Wooguil. "Ultra-low-power media access control protocol based on clock drift characteristics in wireless sensor networks." International Journal of Distributed Sensor Networks 13, no. 7 (July 2017): 155014771772215. http://dx.doi.org/10.1177/1550147717722155.

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Many researchers have analyzed sources of uncertainty in synchronization protocols for wireless sensor networks. However, very few researchers perform this work in depth, and failed to discover comprehensive characteristics since they worked with only one or two measurement intervals. To overcome this problem, extensive measurements were conducted and analyzed to find the characteristics of the sources according to various measurement intervals. Using the characteristics, a new media access control protocol, WideMAC, was designed to support a wide range of duty cycles for various applications. The transmission node in WideMAC calculates the wakeup time of the reception node before transmitting a packet and adaptively estimates the synchronization error size according to the synchronization interval from seconds to hours. To track the reception node’s wakeup time for synchronization, WideMAC uses two estimation algorithms that estimate the wakeup time and the upper bound of the total timing error. Accurate estimation of the wakeup time results in a significant amount of energy saving at the transmission node. Finally, through extensive performance evaluations in a testbed, WideMAC confirmed that it can significantly outperform existing state-of-the-art protocols.

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6

Kang, Yimei, Bin Hu, Yi Ding, and Jingdong Tan. "A Hybrid Node Scheduling Approach Based on Energy Efficient Chain Routing for WSN." Advances in Mechanical Engineering 6 (January 1, 2014): 254761. http://dx.doi.org/10.1155/2014/254761.

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Energy efficiency is usually a significant goal in wireless sensor networks (WSNs). In this work, an energy efficient chain (EEC) data routing approach is first presented. The coverage and connectivity of WSNs are discussed based on EEC. A hybrid node scheduling approach is then proposed. It includes sleep scheduling for cyclically monitoring regions of interest in time-driven modes and wakeup scheduling for tracking emergency events in event-driven modes. A failure rate is introduced to the sleep scheduling to improve the reliability of the system. A wakeup sensor threshold and a sleep time threshold are introduced in the wakeup scheduling to reduce the consumption of energy to the possible extent. The results of the simulation show that the proposed algorithm can extend the effective lifetime of the network to twice that of PEAS. In addition, the proposed methods are computing efficient because they are very simple to implement.

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7

Huang, Ping, Hui Yuan Xing, Xian Ju Yang, Pei Xiang Yan, Tian Lei Zhao, and Zuo Cheng Xing. "A Fast Reactivation Scheme in Power Gating Design." Applied Mechanics and Materials 135-136 (October 2011): 1134–39. http://dx.doi.org/10.4028/www.scientific.net/amm.135-136.1134.

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Power gating has become a popular technique to reduce the ever-increasing leakage power for commercial microprocessors or SoCs, however the wakeup energy and delay cost harm its performance. This paper proposes a fast reactivation scheme to reduce the transition delay and energy. The experiment results show that, comparing to the traditional power gating implementation, it can achieve 19.66% reactivation energy reduction, 9.28% peak leakage reduction, and 23.36% wakeup delay reduction, at the cost of 2.75% area increasing.

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8

Brey, Robin L. "Wakeup Call for Insomnia." Neurology Now 2, no. 4 (July 2006): 6. http://dx.doi.org/10.1097/01222928-200602040-00005.

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9

Polli, Gert R. "Sicherheitsfragen als Wakeup-Call." IT-Szene München 8, no. 5 (December 2013): 24–25. http://dx.doi.org/10.1007/s40567-013-0062-4.

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10

Wakuda, Yuki, Akiko Noda, Yasuhisa Hasegawa, Fumihito Arai, Toshio Fukuda, and Mitsuo Kawaguchi. "Biological Rhythm Based Wearable Sleep State Observer." Journal of Advanced Computational Intelligence and Intelligent Informatics 11, no. 2 (February 20, 2007): 232–41. http://dx.doi.org/10.20965/jaciii.2007.p0232.

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This research aimed to observe human biological rhythm and adjust the human sleep wake pattern based on controlling wakeup timing using low stress system. An ordinary alarm clock operates according to preset time. Biological rhythm determines the human sleep cycle, which affects sleep depth and wakeup timing, which in turn resets the daily rhythm that affects human’s behavior, life-cycle pattern, life-style related disease. We developed a wearable biological rhythm based awakening controller (BRAC) that determines the biological rhythm in the sleep state (sleep cycle) and stimulates the user at a suitable time to enable the person to wakeup refreshed. The proposed system BRAC gauges human’s sleep quality and rhythms from peak to peak interval time of fingertip-pulse waves, that are measured more easily than polysomnography (PSG). In this paper, we detail the method of sleep cycle estimation using a wearable sensor device as the first feature of BRAC, then, in experiments, evaluate the performance of sleep cycle estimation based on a comparison of the BRAC-sleep cycle and the PSG-determined sleep stage.

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11

Valois, John D. "A 3-valued wakeup protocol." Information Processing Letters 55, no. 2 (July 1995): 89–93. http://dx.doi.org/10.1016/0020-0190(95)00078-q.

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12

Kim, Hye-Yun, Seong-Cheol Kim, Jun-Heon Jeon, and Joon-Jae Kim. "Traffic Adaptive Wakeup Control Mechanism in Wireless Sensor Networks." Journal of Korea Multimedia Society 17, no. 6 (June 30, 2014): 681–86. http://dx.doi.org/10.9717/kmms.2014.17.6.681.

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13

Chen, Zhe, Yan Xiang He, and Shi Yong Huang. "Medium Access Control Based on Adaptive Sleeping and Probabilistic Routing for Delay Tolerant Mobile Sensor Networks." Applied Mechanics and Materials 457-458 (October 2013): 821–29. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.821.

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The paper proposes a medium access control (MAC) scheme with coordinated and adaptive wakeup scheme designed for delay tolerant mobile sensor networks (DTMSNs). Many applications motivate MAC schemes for DTMSNs that are different from traditional wireless MAC such as IEEE 802.15.4 in several ways: energy conservation and average delay. MAC with coordinated and adaptive wakeup scheme protocol uses a few novel techniques to reduce energy consumption and message overhead rates. It can reduce significantly control overhead and adaptively wake up, and it avoids overhearing unnecessary traffic. Finally, in this paper, simulation applies message passing to reduce contention latency for applications that require in-network data processing. Simulation results show that MAC with Adaptive Sleeping and based on Probabilistic Routing protocol (MAC-ASPR) obtains significant energy savings compared with IEEE 802.15.4 and S-MAC.

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14

Talib, Mohammed Saad. "Minimizing the Energy Consumption in Wireless Sensor Networks." JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 26, no. 1 (December 19, 2017): 17–28. http://dx.doi.org/10.29196/jub.v26i1.349.

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Energy in Wireless Sensor networks (WSNs) represents an essential factor in designing, controlling and operating the sensor networks. Minimizing the consumed energy in WSNs application is a crucial issue for the network effectiveness and efficiency in terms of lifetime, cost and operation. Number of algorithms and protocols were proposed and implemented to decrease the energy consumption. Principally, WSNs operate with battery-powered sensors. Since Sensor's batteries have not been easily recharge. Therefore, prediction of the WSN represents a significant concern. Basically, the network failure occurs due to the inefficient sensor's energy. MAC protocols in WSNs achieved low duty-cycle by employing periodic sleep and wakeup. Predictive Wakeup MAC (PW-MAC) protocol was made use of the asynchronous duty cycling. It reduces the consumption of the node energy by allowing the senders to predict the receiver′s wakeup time. The WSN must be applied in an efficient manner to utilize the sensor nodes and their energy to ensure effective network throughput. To ensure energy efficiency the sensors' duty cycles must be adjusted appropriately to meet the network traffic demands. The energy consumed in each node due to its switching between the active and idle states was also estimated. The sensors are assumed to be randomly deployed. This paper aims to improve the randomly deployed network lifetime by scheduling the effects of transmission, reception and sleep states on the energy consumption of the sensor nodes. Results for these states with much performance metrics were also studied and discussed.

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15

Xia, Feng, Xue Yang, Haifeng Liu, Zhang Da, and Wenhong Zhao. "Energy-efficient opportunistic localization with indoor wireless sensor networks." Computer Science and Information Systems 8, no. 4 (2011): 973–90. http://dx.doi.org/10.2298/csis110406063x.

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Localization challenges researchers for its contradictive goals, i.e., how to tackle the problem of minimizing energy consumption as well as maintaining localization precision, which are two essential trade-offs in wireless sensor network systems. In this paper, we propose an Energy-Efficient Opportunistic Localization (EEOL) scheme to satisfy the requirement of positional accuracy and power consumption. We explore the idea of opportunistic wakeup probability to wake up an appropriate numbers of sensor nodes, while ensuring the high positional accuracy. Sensor nodes can be triggered by the opportunistic wakeup probability sent from the user. Through utilizing this method, the number of active sensors in the sensing range of the user is decreased, and the power consumption is significantly reduced. Theoretical analysis has been presented to evaluate the performance of EEOL. Simulation results show that EEOL confirms our theoretical analysis.

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16

Giordano, Susan. "A higher height data wakeup call." Renewable Energy Focus 11, no. 6 (November 2010): 18–20. http://dx.doi.org/10.1016/s1755-0084(10)70130-7.

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17

Alberts, Bruce. "A Wakeup Call for Science Faculty." Cell 123, no. 5 (December 2005): 739–41. http://dx.doi.org/10.1016/j.cell.2005.11.014.

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18

Linstone, Harold A. "A second wakeup call for America." Technological Forecasting and Social Change 72, no. 7 (September 2005): 757–60. http://dx.doi.org/10.1016/j.techfore.2005.04.001.

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19

Kabi, Ankita, Nidhi Kaeley, Rohan Bhatia, and Aroop Mohanty. "Carbamazepine-induced hyponatremia – A wakeup call." Journal of Family Medicine and Primary Care 8, no. 5 (2019): 1786. http://dx.doi.org/10.4103/jfmpc.jfmpc_185_19.

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20

Hsiao, K. S., and C. H. Chen. "Wake-Up Logic Optimizations Through Selective Match and Wakeup Range Limitation." IEEE Transactions on Very Large Scale Integration (VLSI) Systems 14, no. 10 (October 2006): 1089–102. http://dx.doi.org/10.1109/tvlsi.2006.884150.

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21

Ernst, Brooke, Shaoyong Su, Frank Treiber, Harold Snieder, and Xiaoling Wang. "Diurnal Cortisol Slope and Nighttime Blood Pressure: A Study in European Americans and African Americans." Ethnicity & Disease 31, no. 4 (October 21, 2021): 481–88. http://dx.doi.org/10.18865/ed.31.4.481.

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Objectives: African Americans (AAs) have higher nighttime blood pressure (BP) than European Americans (EAs). Stress has been suggested to play a role in this difference, but the mechanism is not well-understood. Flatter diurnal cortisol slope (DCS) is a well-known biological marker of stress. The objectives of this study were to: 1) examine ethnic differences in DCS; 2) evaluate the association between DCS and nighttime BP; and 3) determine the extent to which ethnic differences in nighttime BP can be explained by ethnic differences in DCS.Methods: A total of 510 participants (age range: 14-35 years; 49.6% AAs, 54.5% females) provided four salivary cortisol samples at bedtime, wakeup, 30-minutes post-wakeup, and 60-minutes post-wakeup. Additionally, participants wore an ambulatory BP monitor for 24 hours. DCS was calculated as the average of the three morning samples minus the bedtime measurement.Results: After adjustment for age, sex, BMI, and smoking, AAs had blunted DCS (P=.018) and higher nighttime systolic BP (SBP) and diastolic BP (DBP) (Ps<.001) compared with EAs. The DCS was inversely related to nighttime SBP and this relationship did not depend on ethnicity. The ethnic difference of nighttime SBP was significantly attenuated upon addition of DCS to the model. Mediation test showed that 9.5% of ethnic difference in nighttime SBP could be explained by DCS (P=.039).Conclusion: This study confirms ethnic differences in DCS and nighttime BP and further demonstrates that the ethnic differences in DCS can, at least partially, explain the ethnic differences found in nighttime BP. Ethn Dis. 2021;31(4):481-488; doi:10.18865/ed.31.4.481

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22

SHIM, Sunghoon, Sungwoo CHUNG, Hongjun CHOI, and Cheol Hong KIM. "Early wakeup: improving the drowsy cache performance." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 22 (2014): 425–33. http://dx.doi.org/10.3906/elk-1201-90.

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23

Ochani, Rohan Kumar, Asim Shaikh, Ameema Asad, and Simran Batra. "HIV outbreak in Pakistan - a wakeup call?" Pakistan Journal of Surgery and Medicine 1, no. 2 (May 11, 2020): 98–99. http://dx.doi.org/10.37978/pjsm.v1i2.182.

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Human immune-deficiency virus (HIV) is a global threat with an estimated 38.6 million people being previously infected while 25 million of them have succumbed to the disease. In Pakistan, since 2004, there has been a 50-fold increase from 2700 to 130,000 in the number of people infected with HIV, while Sub- Saharan Africa alone bears the heaviest burden of HIV having 25 million infected individuals. Considering these devastating numbers, it was alarming to find that in June 2019, 751 new cases of HIV were diagnosed in Larkana, in the province of Sindh, Pakistan. Therefore, to make sure that the efforts of international institutions like The Joint United Nations Programme on HIV/AIDS (UNAIDS) which are trying to effectively reduce the spread of HIV are such regions is streamlined it is extremely important to highlight some of the underlying causes which are endemic to such regions such as re-using of blades by barbers and the practice of re-using needles by un-licensed medical practitioners offering miraculous cures. It is also equally important to suggest and re-iterate possible ways in which this situation, which is rapidly worsening, can be improved.

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24

Deepthi, R. "Wakeup Stroke Prediction and Child Safety System." International Journal for Research in Applied Science and Engineering Technology 8, no. 5 (May 31, 2020): 889–92. http://dx.doi.org/10.22214/ijraset.2020.5138.

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25

Yen, W. C., and H. W. Chen. "Low power and fast system wakeup circuit." IEE Proceedings - Circuits, Devices and Systems 152, no. 3 (2005): 223. http://dx.doi.org/10.1049/ip-cds:20041176.

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26

Berkovic, Samuel F., and Philip King. "Sleep Neurology - A Wakeup Call for Neurologists." Practical Neurology 2, no. 1 (February 2002): 2–3. http://dx.doi.org/10.1046/j.1474-7766.2002.00301.x.

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27

Neilson, Tracy A., and James A. Donaldson. "Curiosity's Fault Tolerant Wakeup and Shutdown Design." Procedia Computer Science 28 (2014): 441–48. http://dx.doi.org/10.1016/j.procs.2014.03.054.

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28

Wu, Shan-Hung, Chung-Min Chen, and Ming-Syan Chen. "Collaborative Wakeup in Clustered Ad Hoc Networks." IEEE Journal on Selected Areas in Communications 29, no. 8 (September 2011): 1585–94. http://dx.doi.org/10.1109/jsac.2011.110908.

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29

De Marco, Gianluca, Marco Pellegrini, and Giovanni Sburlati. "Faster deterministic wakeup in multiple access channels." Discrete Applied Mathematics 155, no. 8 (April 2007): 898–903. http://dx.doi.org/10.1016/j.dam.2006.08.009.

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30

Gasieniec, Leszek, Andrzej Pelc, and David Peleg. "The Wakeup Problem in Synchronous Broadcast Systems." SIAM Journal on Discrete Mathematics 14, no. 2 (January 2001): 207–22. http://dx.doi.org/10.1137/s0895480100376022.

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31

Schuster, Sheldon M. "Commentary: Have we received the wakeup call?" Biochemistry and Molecular Biology Education 34, no. 3 (May 2006): 230. http://dx.doi.org/10.1002/bmb.2006.49403403230.

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32

Wong, Y. F., L. H. Ngoh, Winston K. G. Seah, and Wai-Choong Wong. "Dual wakeup design for wireless sensor networks." Computer Communications 32, no. 1 (January 2009): 1–13. http://dx.doi.org/10.1016/j.comcom.2008.06.022.

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33

Milbredt, Paul, Martin Horauer, and Konrad Reif. "Wakeup and startup of Flexray cross linkings." ATZelektronik worldwide 2, no. 4 (December 2007): 30–32. http://dx.doi.org/10.1007/bf03242146.

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34

Kim, Hye-Yun, and Seong-Cheol Kim. "A Traffic Aware Demand-Wakeup MAC(TADW-MAC) Protocol for Wireless Sensor Networks." Journal of the Korea Institute of Information and Communication Engineering 21, no. 1 (January 31, 2017): 180–86. http://dx.doi.org/10.6109/jkiice.2017.21.1.180.

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35

Pendry, Patricia, and Emma K. Adam. "Associations between parents' marital functioning, maternal parenting quality, maternal emotion and child cortisol levels." International Journal of Behavioral Development 31, no. 3 (May 2007): 218–31. http://dx.doi.org/10.1177/0165025407074634.

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Associations between family functioning and children's stress hormone levels are explored, by examining how aspects of the interparental relationship (parents' marital satisfaction and parent conflict styles), the mother—child relationship (maternal involvement and warmth) and maternal emotional functioning (depression, anxiety and self-esteem) relate to children's cortisol levels. Parents of 63 children (32 kindergarten-aged children, 31 adolescents) completed questionnaires regarding family and individual functioning, and children's salivary cortisol samples were collected on two consecutive weekdays at home immediately upon waking and at bedtime, such that wakeup, bedtime and average levels and the slope of their diurnal cortisol rhythms could be estimated. Higher marital functioning was significantly and independently associated with lower child cortisol levels (average levels and wakeup levels), while maternal parenting quality and emotional functioning were not significant when included in the same regression model. Associations between parents' marital functioning and children's bedtime cortisol levels and diurnal slopes were moderated by child age, with higher parent marital functioning being associated with a significantly greater lowering of bedtime levels and steeper diurnal slopes for kindergarten-aged children as compared to adolescents. Higher maternal parenting quality was found to be significantly related to steeper diurnal cortisol rhythms.

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36

V, Sasikala, and C. Chandrasekar. "Cluster based Sleep/Wakeup Scheduling Technique for WSN." International Journal of Computer Applications 72, no. 8 (June 26, 2013): 15–22. http://dx.doi.org/10.5120/12513-8030.

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37

Uppoor, Ashita. ""Antibiotic Apocalypse:" A wakeup call for dental professionals." Journal of Interdisciplinary Dentistry 6, no. 1 (2016): 1. http://dx.doi.org/10.4103/2229-5194.188152.

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38

Weeks, Thomas M. "A Celebration, a Wakeup call, and a Vision." Journal of Aircraft 39, no. 1 (January 2002): 1–5. http://dx.doi.org/10.2514/2.2893.

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39

Pradhan, Akshyaya. "Cardiovascular risk screening: Time for a wakeup call!" Heart India 4, no. 1 (2016): 3. http://dx.doi.org/10.4103/2321-449x.178116.

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40

Ford, Donna Y., Tarek C. Grantham, and J. John Harris. "Multicultural gifted education:A wakeup call to the profession." Roeper Review 19, no. 2 (December 1996): 72–78. http://dx.doi.org/10.1080/02783199609553794.

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41

Gupta, Devendra K. "Wakeup call to manage oral cancers in India." Journal of Oral Biology and Craniofacial Research 2, no. 1 (January 2012): 1. http://dx.doi.org/10.1016/s2212-4268(12)60002-5.

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42

Walker, Richard M., Rhys Andrews, George A. Boyne, Kenneth J. Meier, and Laurence J. O’Toole. "Wakeup Call: Strategic Management, Network Alarms, and Performance." Public Administration Review 70, no. 5 (August 31, 2010): 731–41. http://dx.doi.org/10.1111/j.1540-6210.2010.02201.x.

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43

Vu, T. H., V. C. Luc, N. T. Quan, T. Thanh, N. H. Thanh, and P. N. Nam. "Sleep Mode and Wakeup Method for OpenFlow Switches." Journal of Low Power Electronics 10, no. 3 (September 1, 2014): 347–53. http://dx.doi.org/10.1166/jolpe.2014.1328.

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44

Liang, Tao, Jian Bing Guo, and Hai Yan Ren. "Tracking Algorirthm Based on Location Prediction for Wireless Sensor Network." Advanced Materials Research 562-564 (August 2012): 1856–60. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1856.

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In many wireless sensor networks tracking technologies,location-based pediction target tracking technology have a natural advantage of reducing the energy consumption of nodes in tracking the process. However, the existing location-based prediction target tracking algorithm is not perfect.So Location-Based Pediction Target Tracking Algorirthm (LBP) was proposed. There are three parts in LBP,target position prediction algorithm based self-simlar,target tracking based on dynamic wakeup cluster(DWC),and three levels recovery mechanism.

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45

Mahlknecht, S., and M. Spinola Durante. "WUR-MAC: Energy efficient Wakeup Receiver based MAC Protocol." IFAC Proceedings Volumes 42, no. 3 (2009): 79–83. http://dx.doi.org/10.3182/20090520-3-kr-3006.00012.

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46

Gupta, Neeraj. "COVID-19 – A wakeup call for allergy practice transition." Karnataka Pediatric Journal 36 (December 30, 2021): 140–41. http://dx.doi.org/10.25259/kpj_3_2021.

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47

SINGH, ABHA G., SIDDHARTH SINGH, and PREET PAUL SINGH. "YouTube for Information on Rheumatoid Arthritis — A Wakeup Call?" Journal of Rheumatology 39, no. 5 (April 1, 2012): 899–903. http://dx.doi.org/10.3899/jrheum.111114.

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Objective.Rheumatoid arthritis (RA) is a common debilitating autoimmune disease, with unmet need for knowledge among patients and the general population. YouTube is a popular, consumer-generated, video-sharing website, which can be a source of information on RA. We investigated the quality of information on RA on YouTube and analyzed audience interaction.Methods.YouTube was searched using the term “Rheumatoid Arthritis,” for videos uploaded on RA. Two physicians independently classified videos as useful, misleading, or patient views, and rated them on a 5-point global quality scale (GQS; 1 = poor quality, 5 = excellent quality). Useful videos were rated for reliability and content, on a 5-point scale (higher scores represent more reliable and comprehensive videos). Source of videos was also noted. Audience interaction was assessed through video viewership.Results.A total of 102 relevant videos were identified; 54.9% were classified as useful (GQS 2.9 ± 1.0) and 30.4% deemed misleading (GQS 1.3 ± 1.6). Mean reliability and content score of useful videos was 3.2 (± 1.0) and 2.5 (± 1.2), respectively. All videos uploaded by university channels and professional organizations provided useful information but formed only 12.7% of total videos, whereas 73.9% of medical advertisements and videos by for-profit organizations were misleading. There was no difference in the viewership/day (10.0 vs 21.5; p = nonsignificant) of useful and misleading information.Conclusion.YouTube is a source of information on RA, of variable quality, with wide viewership and potential to influence patients’ knowledge and behavior. Physicians and professional organizations should be aware of and embrace this evolving technology to raise awareness about RA, and empower patients to discriminate useful from misleading information.

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Gliessman, Steve. "A Wakeup Call for a Climate-Smart Food System." Agroecology and Sustainable Food Systems 38, no. 7 (June 19, 2014): 745–47. http://dx.doi.org/10.1080/21683565.2014.916774.

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Dev, Chekitan S. "The Future of Hospitality Management Programs: A Wakeup Call." Journal of Hospitality & Tourism Research 44, no. 8 (July 31, 2020): 1203–10. http://dx.doi.org/10.1177/1096348020945373.

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Since the founding of Cornell’s Hotel School—the world’s first, and arguably the finest, collegiate hospitality management program—almost 100 years ago, hospitality management programs have served millions of students and executives worldwide and turned what was simply an occupation into a profession. Our programs are now in jeopardy of declining and ultimately becoming irrelevant. To secure our future, we must deal immediately and effectively with the threats to our existence and seize the opportunities to strengthen our programs. In this article, I present 10 trends that foretell the future decline of hospitality management programs and offer some suggestions to reenergize hospitality management education, research, and engagement.

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Ruyack, A., L. Pancoast, N. Shalabi, A. Molnar, and A. Lal. "NEMS Electrostatic RF Wakeup Switch with Pt FIB Contact." Journal of Physics: Conference Series 1407 (November 2019): 012077. http://dx.doi.org/10.1088/1742-6596/1407/1/012077.

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