Coverage analysis and active scheme of wireless sensor networks

Li, W.; Zhang, W.

doi:10.1049/iet-wss.2011.0092

Cited by 18 publications

(13 citation statements)

References 7 publications

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“…In order to resolve this limitation, sensors are frequently dispatched in large numbers into their operation field. In such cases, some sensors may be switched off to conserve their energy consumption [4]. Further to putting sensors into the inactive or sleeping mode, it is concerned that sensors need to be returned to their operation state as soon as possible.…”

Section: International Journal Of Distributed Sensor Networkmentioning

confidence: 99%

Divisible Load Theory Based Active-Sleep Workload Assignment Schemes for Wireless Sensor Networks

Shi

Kwok

Wang

et al. 2014

International Journal of Distributed Sensor Networks

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Wireless sensor networks (WSNs) have been widely applied in many monitoring and surveillance processes. Due to the limited onboard energy resources, the operation of a WSN is severely hindered by its shortened lifespan arising from energy depletion. In order to alleviate this problem, and with the possibility of partitioning sensing workloads, the divisible load theory (DLT) can be adopted to derive a proper workload assignment scheme. However, special considerations have to be paid for its generic applicability in feasible workload assignment for WSNs. In this paper, an examination of DLT based WSN operations including the effect of assignment, measurement, and report times is presented, and the problem of negative workloads inherently generated in some schemes is revealed. Furthermore, by making use of the negativity phenomenon, an active-sleep scheme is proposed for the WSN such that sensor energy consumptions can be reduced and consequently extend the WSN operation lifespan. Specifically, sensors with smaller amount of residual energies are put into the sleep mode when the assigned workloads are negative. On the other hand, positive workloads are normalized and reassigned to sensors with larger amount of onboard energies. Simulation studies are carried out to demonstrate the negative workload phenomenon, and satisfactory performances of the proposed active-sleep scheme are verified.

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Section: International Journal Of Distributed Sensor Networkmentioning

confidence: 99%

Divisible Load Theory Based Active-Sleep Workload Assignment Schemes for Wireless Sensor Networks

Shi

Kwok

Wang

et al. 2014

International Journal of Distributed Sensor Networks

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“…(5)How to determine the coverage of target area with the least deployed nodes by using the probability expectation value? How to realize scheduling mechanism of sensor nodes?…”

Section: Figure 1 Schematic For Associated Coverage Attributesmentioning

confidence: 99%

“…Besides, it arouses the research warmness for WSN technology. WSN works in poor environment in which sensor nodes are usually deployed in the monitoring region through randomly spreading [4][5]. Distribution of sensor nodes is very uneven.…”

Section: Introductionmentioning

confidence: 99%

A Linear Programming with Alliance Strategy Coverage in Wireless Sensor Networks

Sun¹,

Yang²,

Dong³

2016

IJFGCN

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“…The overall network energy can be kept in balance. (5) In the final part of this paper, the schematic diagram of coverage rate and network energy changing with time under different variable system through simulation is presented. The study process is summarized, and the future work is forecasted.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, it arouses the research warmness for WSN technology. WSN works in poor environment in which sensor nodes are usually deployed in the monitoring region through random spreading [4,5]. Distribution of sensor nodes is very uneven.…”

Section: Introductionmentioning

confidence: 99%

A novel coverage algorithm based on event-probability-driven mechanism in wireless sensor network

Sun

Wang

et al. 2014

J Wireless Com Network

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Coverage problem is an important research topic in the field of wireless sensor network (WSN). The coverage algorithm based on event probability driven mechanism (EPDM) is put forward in this paper. First of all, the network probability model is established and the subordinate relation between sensor nodes and the target nodes is presented. Secondly, a series of probability is computed and the related theorems and reasoning are also proven. Thirdly, effective coverage for the monitoring region is achieved through scheduling mechanism of nodes themselves, thus the purpose of increasing network lifetime can be realized. Finally, experimental results show that the proposed algorithm could achieve complete coverage for networks of different scale and increase the network lifetime. It possesses the good quality of effectiveness and stability.

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Coverage analysis and active scheme of wireless sensor networks

Cited by 18 publications

References 7 publications

Divisible Load Theory Based Active-Sleep Workload Assignment Schemes for Wireless Sensor Networks

Divisible Load Theory Based Active-Sleep Workload Assignment Schemes for Wireless Sensor Networks

A Linear Programming with Alliance Strategy Coverage in Wireless Sensor Networks

A novel coverage algorithm based on event-probability-driven mechanism in wireless sensor network

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