Distributed Computing in Sensor Systems
DOI: 10.1007/978-3-540-69170-9_26
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Improving the Data Delivery Latency in Sensor Networks with Controlled Mobility

Abstract: Abstract. Unlike traditional multihop forwarding among homogeneous static sensor nodes, use of mobile devices for data collection in wireless sensor networks has recently been gathering more attention. It is known that the use of mobility significantly reduces the energy consumption at each sensor, elongating the functional lifetime of the network, in exchange for increased data delivery latency. However, in previous work, mobility and communication capabilities are often underutilized, resulting in suboptimal… Show more

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Cited by 95 publications
(60 citation statements)
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“…The project has extended the work on controllably mobile nodes case [7], multiple data mules case [8], and arbitrarily mobile nodes case [9]. While these formulations are similar in spirit to ours, we also generalize the problem to include a precise mobility model with acceleration constraints and stronger guarantees on the optimality, as demonstrated in our previous study [10].…”
Section: Related Workmentioning
confidence: 95%
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“…The project has extended the work on controllably mobile nodes case [7], multiple data mules case [8], and arbitrarily mobile nodes case [9]. While these formulations are similar in spirit to ours, we also generalize the problem to include a precise mobility model with acceleration constraints and stronger guarantees on the optimality, as demonstrated in our previous study [10].…”
Section: Related Workmentioning
confidence: 95%
“…However, simultaneously optimizing them is an NP-hard problem, which is implied by the NP-hardness of the simplified path selection problem [10]. Consequently, in previous studies, the problem has been simplified in various ways by employing assumptions that restrict the capabilities of sensor nodes and data mule.…”
Section: Problem Framework For Optimal Control Of Data Mulementioning
confidence: 99%
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“…However, when used in WSN with a mobile sink, these heuristic solutions become impractical as the number of nodes increases [4]. Moreover, typical speed of mobile sink is slow and therefore it increases data collection latency in a large network [5,23]. In this paper, we propose a rendezvous based technique in which a subset of sensor nodes is selected as Rendezvous Points (RPs).…”
Section: Introductionmentioning
confidence: 99%
“…The sink meets all sensor nodes exactly once during the tour. In similar methods presented in [5,6], the authors model the sink tour as a "label covering tour" that relaxes the requirement of exact one-time-visits of the sink to each sensor's neighborhood.…”
Section: Introductionmentioning
confidence: 99%