Optimal range assignment in solar powered active wireless sensor networks

Gaudette, Benjamin; Hanumaiah, Vinay; Vrudhula, Sarma; Krunz, Marwan

doi:10.1109/infcom.2012.6195623

Cited by 23 publications

(18 citation statements)

References 11 publications

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“…Inspired by the work of Gaudette et al, 26 and as an extension of our previous work, 27 we introduce a continuous step function to approximate the binary function in constraint (7), The continuous step function is expressed by sðx Correspondingly, constraint (7) can be approximated by constraint (16), where the step function is quasiconvex.…”

Section: O or Rg Ga An Ni Iz Zi In Ng G T Th He E 4 4t Th H G Go Op Pmentioning

confidence: 99%

Optimal transmission for scalable video coded streaming in cellular wireless networks with the cooperation of local peer-to-peer network

Feng

Lin

Zhao

et al. 2017

International Journal of Distributed Sensor Networks

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We study the problem of transmitting scalable video coded streams in a hybrid scenario including a global cellular network and a local peer-to-peer network. Given desirable channel condition in cellular downlink, some cellular user equipments can fetch the video chunks via the cellular base station directly, and also provide relay service via the local peer-to-peer network for other user equipments unable to meet their basic video quality. To take the advantage of channel diversity gains, the method of random linear coding is adopted to generate linear combinations of the video chunks for transmission in both the cellular and peer-to-peer networks. To optimize the cellular and peer-to-peer transmission arrangement, we first formulate it as a mixed integer nonlinear programming problem, which becomes more complicated when the number of user equipments increases. Then, we convert it to a quasi-convex optimization problem by approximating the indicator function with a continuous step function, and it can be solved by a centralized approach. Furthermore, a primal-dual decomposition approach is developed and a distributed algorithm is proposed accordingly. Simulation results show that the proposed approach achieves a near-optimal solution.

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Section: O or Rg Ga An Ni Iz Zi In Ng G T Th He E 4 4t Th H G Go Op Pmentioning

confidence: 99%

Optimal transmission for scalable video coded streaming in cellular wireless networks with the cooperation of local peer-to-peer network

Feng

Lin

Zhao

et al. 2017

International Journal of Distributed Sensor Networks

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“…A general target coverage problem for a solar-powered active sensor network with a controllable sensing range was investigated in [18], where a near-optimal approximate solution was provided with a 60X improvement in speed at the cost of 8% reduction in the quality of coverage. A joint study of energy management and resource allocation problem for energy-harvesting sensors was presented in [19], in which the optimal sampling rate was explored based on the average energy replenishment rate, and a local algorithm was presented for each sensor to adapt the sampling rate according to short term fluctuations in recharging, with the objective of maintaining the battery at a target level.…”

Section: Energy Replenishment In Wsnsmentioning

confidence: 99%

“…The above works provide promising methodologies to relieve the energy constraint from the perspective of power supply. In [18][19][20] authors focus on prolonging the lifetime of an energy harvesting sensor network, but do not consider mobility. As a result, the network lifetime is still fairly short due to unbalanced energy consumption in the network.…”

Section: Energy Replenishment In Wsnsmentioning

confidence: 99%

Mobility assisted data gathering with solar irradiance awareness in heterogeneous energy replenishable wireless sensor networks

Yang

2015

Computer Communications

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a b s t r a c tWireless sensor networks adopting static data gathering may suffer from unbalanced energy consumption due to non-uniform packet relay. Although mobile data gathering provides a reasonable approach to solving this problem, it inevitably introduces longer data collection latency due to the use of mobile data collectors. In the meanwhile, energy harvesting has been considered as a promising solution to relieve energy limitation in wireless sensor networks. In this paper, we consider a joint design of these two schemes and propose a novel two layer heterogeneous architecture for wireless sensor networks, which consists of two types of nodes: sensor nodes which are static and powered by solar panels, and cluster heads that have limited mobility and can be wirelessly recharged by power transporters. Based on this network architecture, we present a data gathering scheme, called mobility assisted data gathering with solar irradiance awareness (MADG-SIA), where sensor nodes are clustered around cluster heads that adaptively change their positions according to solar irradiance, and the sensing data are forwarded to the data sink by these cluster heads working as data aggregation points. We evaluate the performance of the proposed scheme by extensive simulations and the results show that MADG-SIA provides significant improvement in terms of balancing energy consumption and the amount data gathered compared to previous work.

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“…This distance is the actual Euclidean distance between two points in the plane, i.e. as given in equation (2)[1]:…”

Section: Types Of Sensing Modelsmentioning

confidence: 99%

Area coverage in wireless sensor network by using harmony search algorithm

Panov

Koceski

2014

2014 3rd Mediterranean Conference on Embedded Computing (MECO)

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The area coverage is a popular problem in wireless sensor networks and many attempts in the past several years have been made to provide an optimal solution to this particular type of problem. This paper presents a novel approach to solving the area coverage problem, namely the Harmony Search optimization algorithm. The Harmony Search algorithm is an optimization technique which is often used to solve NP-complete problems, i.e. problems which deterministic approaches to solve are not efficient for. The results have been compared to the Particle Swarm Optimization algorithm and have shown that Harmony Search gives better area coverage.

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Optimal range assignment in solar powered active wireless sensor networks

Cited by 23 publications

References 11 publications

Optimal transmission for scalable video coded streaming in cellular wireless networks with the cooperation of local peer-to-peer network

Optimal transmission for scalable video coded streaming in cellular wireless networks with the cooperation of local peer-to-peer network

Mobility assisted data gathering with solar irradiance awareness in heterogeneous energy replenishable wireless sensor networks

Area coverage in wireless sensor network by using harmony search algorithm

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