title: LPTA: location predictive and time adaptive data gathering scheme with mobile sink for wireless sensor networks.
abstract: This paper exploits sink mobility to prolong the lifetime of sensor networks while maintaining the data transmission delay relatively low. A location predictive and time adaptive data gathering scheme is proposed. In this paper, we introduce a sink location prediction principle based on loose time synchronization and deduce the time-location formulas of the mobile sink. According to local clocks and the time-location formulas of the mobile sink, nodes in the network are able to calculate the current location of the mobile sink accurately and route data packets timely toward the mobile sink by multihop relay. Considering that data packets generating from different areas may be different greatly, an adaptive dwelling time adjustment method is also proposed to balance energy consumption among nodes in the network. Simulation results show that our data gathering scheme enables data routing with less data transmission time delay and balance energy consumption among nodes.
authors.affiliation: College of Internet of Things Engineering, Hohai University, Changzhou 213022, China.
authors.forename: Chuan
authors.identifier: 0000-0003-1841-3375
authors.initials: C
authors.lastname: Zhu
authors.affiliation: College of Internet of Things Engineering, Hohai University, Changzhou 213022, China.
authors.forename: Yao
authors.identifier: 0000-0002-6904-4170
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Internet of Things Engineering, Hohai University, Changzhou 213022, China.
authors.forename: Guangjie
authors.identifier: 0000-0002-6921-7369
authors.initials: G
authors.lastname: Han
authors.affiliation: Instituto de Telecomunicações, University of Beira Interior, 6201-001 Covilhã, Portugal ; University of ITMO, Saint Petersburg 197101, Russia.
authors.forename: Joel J P C
authors.initials: JJ
authors.lastname: Rodrigues
authors.affiliation: Integrated Management Coastal Research Institute, Universidad Politecnica de Valencia, 46022 Valencia, Spain.
authors.forename: Jaime
authors.identifier: 0000-0002-0862-0533
authors.initials: J
authors.lastname: Lloret
mesh_terms: D003195:Computer Communication Networks; D003198:Computer Simulation; D011211:Electric Power Supplies; D006801:Humans; D007256:Information Systems; D013997:Time Factors