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Dual Priority Scheduling Based on Power Adjustment Context Switching for Ubiquitous Sensor Network
2007
IEICE transactions on communications
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This paper suggests a power adjustment dual priority scheduler (PA-DPS) that offers low power consumption while meeting the USN requirements by estimating power consumption in the USN node. ...
From experimental results, PA-DPS reduced the inactive mode current up to 40% under the 1% duty cycle. key words: Ubiquitous sensor networks, dual priority schedule, operating system ...
Section 2 describes the design of the power adjustment context switching based dual-priority scheduling (PA-DPS). Section 3 describes the achieved chip set and hardware structure. ...
doi:10.1093/ietcom/e90-b.12.3419
fatcat:a6id4aqfgjbmhfsc6f3e7y4giy
Enix
2010
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems - SenSys '10
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Enix is a lightweight dynamic operating system for tightly constrained platforms for wireless sensor networks (WSN). ...
Context switching and scheduling are the two main sources of run-time overhead of multi-threaded programming and must be efficient. ...
Table 4 shows a comparison of context-switch overhead between different multi-threaded models for both RR and priority-based scheduler. ...
doi:10.1145/1869983.1870002
dblp:conf/sensys/ChenCC10
fatcat:rgda3sdoyzavjmxwlyc6hlptua
Enabling IoT empowered smart lighting solutions: A communication theoretic perspective
2014
2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)
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A hirerichical networking architecture is proposed and different networking issues are discussed. Finally, a communication theoretic perspective for wireless interface selection is presented. ...
It is noted that the functionality of the building block of IoT based smart lighting system can be translated into an abstract reference architecture. ...
The controllers/switches and actuators all have lower power MCU with on board wireless transceivers. The room network controller (RNC) also has matching wireless interface. ...
doi:10.1109/wcncw.2014.6934875
dblp:conf/wcnc/ZaidiIMG14
fatcat:q6hoomqcbjg4hnmcvgygkvz54i
RETOS: Resilient, Expandable, and Threaded Operating System for Wireless Sensor Networks
2007
2007 6th International Symposium on Information Processing in Sensor Networks
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This paper presents the design principles, implementation, and evaluation of the RETOS operating system which is specifically developed for micro sensor nodes. ...
Finally, the networking architecture in RETOS is designed with a layering concept to provide WSN-specific network abstraction. ...
The MANTIS scheduler, based on fixed-interval timer interrupt, could possibly delay response time for threads. The context switching and timer interrupt handling in MANTIS is not optimized. ...
doi:10.1109/ipsn.2007.4379674
fatcat:u45v3s5hurae5k6iztmziusa4a
Wireless Multimedia Sensor Networks: Current Trends and Future Directions
2010
Sensors
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Wireless Multimedia Sensor Networks (WMSNs) have emerged and shifted the focus from the typical scalar wireless sensor networks to networks with multimedia devices that are capable to retrieve video, audio ...
The low-cost, low-power, non-actuated resource constrained stereo image sensors are used to compute the 3-D object location after detecting it in order to adjust the pan/tilt/zoom settings for the high ...
In [87] , a scheduling method based on cooperation among nodes for object detection in WMSNs is proposed where the network is clustered based on the overlapping coverage areas of the multimedia sensor ...
doi:10.3390/s100706662
pmid:22163571
pmcid:PMC3231118
fatcat:g6nymugwpzaq7h2ouxsg5v3hke
RETOS
2007
Proceedings of the 6th international conference on Information processing in sensor networks - IPSN '07
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This paper presents the design principles, implementation, and evaluation of the RETOS operating system which is specifically developed for micro sensor nodes. ...
Finally, the networking architecture in RETOS is designed with a layering concept to provide WSN-specific network abstraction. ...
The MANTIS scheduler, based on fixed-interval timer interrupt, could possibly delay response time for threads. The context switching and timer interrupt handling in MANTIS is not optimized. ...
doi:10.1145/1236360.1236381
dblp:conf/ipsn/ChaCJKSYY07
fatcat:rf4gamq7mjhojm25v5fld4dls4
Current Trends on Green Wireless Sensor Networks
2021
Sensors
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The issue of energy balancing in Wireless Sensor Networks is a pivotal one, crucial in their deployment. ...
node (either specialized or not) to another one. ...
A TPC mechanism is also proposed for Underwater Wireless Sensor Networks (UWSNs) in [35] , where source nodes adjust transmission power according to the location of the destination node. ...
doi:10.3390/s21134281
pmid:34201485
fatcat:2xgqpsrlvbarppp5f7g6shg73e
An On-Time Power-Aware Scheduling Scheme for Medical Sensor SoC-Based WBAN Systems
2012
Sensors
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The novelty of this scheduler is that it increases the determinacy of power adjustment and the predictability of scheduling by employing non-pre-emptible dual priority scheduling. ...
The scheduler was embedded into a system on chip (SoC) developed to support the wireless body area network-a wakeup-radio and wakeup-timer for implantable medical devices. ...
This paper is organized as follows: Section 2 describes the design of an on-time power-aware scheduler that is a realization of the above ideas, based on a dual priority scheduler. ...
doi:10.3390/s130100375
pmid:23271602
pmcid:PMC3574681
fatcat:kswpuwmq6bcbvfkrjznfiftpia
A Survey On M2M Systems For Mhealth: A Wireless Communications Perspective
2014
Zenodo
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In this context, we aim to provide a comprehensive survey on M2M systems for mHealth applications from a wireless communication perspective. ...
Hence, we first provide a systematic review of Wireless Body Area Networks (WBANs), which constitute the enabling technology at the patient's side, and then discuss end-to-end solutions that involve the ...
Sensors 2014, 14 ...
doi:10.5281/zenodo.57072
fatcat:utf5bd3xgjbxrnixu6iocfamla
FireFly
[chapter]
2007
Wireless Ad Hoc Networking
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Since modern sensor networks use ad-hoc multihop wireless networking for packet relaying, we provide port-based socket abstractions that can be used by sensing tasks for sending and receiving data. ...
They store the register context of all task (registers and stack), the task's priority, period of recurrence, (CP U, network, Sensor) reservation sizes, port identifiers etc. ...
doi:10.1201/9781420013825.ch3
fatcat:b5wivhwsb5eq5aygknkeximn3q
TrueTime
[chapter]
2009
Model-Based Design for Embedded Systems
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The pervasive nature of these systems generates further constraints on physical size and power consumption. ...
Feedback control is a common application type in embedded systems, and many wireless embedded systems are networked control systems, i.e, they contain one or several control loops that are closed over ...
, and for adjusting the radio power transmit level. ...
doi:10.1201/9781420067859-c6
fatcat:moe3bojwl5c25malbzacnyjaju
Wireless Networks with RF Energy Harvesting: A Contemporary Survey
[article]
2014
arXiv
pre-print
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Radio frequency (RF) energy transfer and harvesting techniques have recently become alternative methods to power the next generation wireless networks. ...
In this paper, we present an extensive literature review on the research progresses in wireless networks with RF energy harvesting capability, referred to as RF energy harvesting networks (RF-EHNs). ...
Moreover, the authors generalize the analytical results to a wireless sensor network powered by distributed wireless power chargers. ...
arXiv:1406.6470v6
fatcat:bjmvi4hwfnhvbnodubqipsdija
Survey of QoS Routing Protocols in Wireless Multimedia Sensor Networks
2015
Journal of Computer Networks and Communications
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The emergence of Wireless Multimedia Sensor Networks (WMSNs) has stimulated the refocusing of research from conventional scalar Wireless Sensor Networks (WSNs) to WMSNs. ...
Path selection is based on evaluation of a cost function using various routing metrics. A careful blend of such metrics in a routing cost function guarantees a committed level of QoS. ...
For packet scheduling, two algorithms are used, namely, baseline packet scheduling and power-aware packet scheduling. Both scheduling algorithms drop packets based on a distortion prediction model. ...
doi:10.1155/2015/824619
fatcat:5ojdsvgtxbf23l3le6xtlxcbgm
A Survey on M2M Systems for mHealth: A Wireless Communications Perspective
2014
Sensors
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In this context, we aim to provide a comprehensive survey on M2M systems for mHealth applications from a wireless communication perspective. ...
solutions based on existing open communication standards or proprietary technologies. ...
Sensors 2014, 14 ...
doi:10.3390/s141018009
pmid:25264958
pmcid:PMC4239929
fatcat:kwow7xqtarh47bm5v62tpvrdte
Cognitive Radio for Smart Grids: Survey of Architectures, Spectrum Sensing Mechanisms, and Networking Protocols
2016
IEEE Communications Surveys and Tutorials
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Cognitive radio networks (CRNs) in particular are highly promising for providing timely SG wireless communications by utilizing all available spectrum resources. ...
We provide in this paper a comprehensive survey on the CRN communication paradigm in SGs, including the system architecture, communication network compositions, applications, and CR-based communication ...
Priority-Based Traffic Scheduling and Utility Optimization [135] A CR channel allocation and priority-based traffic scheduling approach for CR-based SG systems is examined in [135] . ...
doi:10.1109/comst.2015.2481722
fatcat:rnchxiumhndqho5tlumonfdoxi
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