A distributed data storage protocol for heterogeneous wireless sensor networks with mobile sinks |
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| Authors: | Guilherme Maia Daniel L. Guidoni Aline C. Viana Andre L.L. Aquino Raquel A.F. Mini Antonio A.F. Loureiro |
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| Affiliation: | 1. Federal University of Minas Gerais, Belo Horizonte, MG, Brazil;2. INRIA, Saclay, Orsay, France;3. Federal University of Alagoas, Maceió, AL, Brazil;4. Pontifical Catholic University, Belo Horizonte, MG, Brazil;1. IMS Team, SIME Lab, ENSIAS, Mohammed V Souissi University,BP 713, Agdal Rabat, Morocco;2. ISL Team, STRS Lab, INPT, Rabat, Morocco;3. State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China;4. National Glycoengineering Research Center, Shandong University, Jinan 250100, China;1. Institute of Computational Modeling, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;2. Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660041, Russia;3. Siberian State Aerospace University, 660037 Krasnoyarsk, Russia;4. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia;5. Royal Institute of Technology, Stockholm SE-100 44, Sweden;6. The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China;2. School of Information Technology, Deakin University, 221 Burwood Highway Vic 3125, Australia;3. Guangxi Key Laboratory of Trusted Software, Guilin University of Electronic Technology, Guilin 541004, China;4. Key Laboratory of Intelligent Information Processing, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China;1. School of Information Science and Engineering, Shandong University, Jinan 250100, PR China;2. Key Laboratory of Intelligent Perception and Systems for High-Dimensional Information, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, PR China;3. Computer Science Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;4. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150080, PR China |
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| Abstract: | This paper presents ProFlex, a distributed data storage protocol for large-scale Heterogeneous Wireless Sensor Networks (HWSNs) with mobile sinks. ProFlex guarantees robustness in data collection by intelligently managing data replication among selected storage nodes in the network. Contrarily to related protocols in the literature, ProFlex considers the resource constraints of sensor nodes and constructs multiple data replication structures, which are managed by more powerful nodes. Additionally, ProFlex takes advantage of the higher communication range of such powerful nodes and uses the long-range links to improve data distribution by storage nodes. When compared with related protocols, we show through simulation that Proflex has an acceptable performance under message loss scenarios, decreases the overhead of transmitted messages, and decreases the occurrence of the energy hole problem. Moreover, we propose an improvement that allows the protocol to leverage the inherent data correlation and redundancy of wireless sensor networks in order to decrease even further the protocol’s overhead without affecting the quality of the data distribution by storage nodes. |
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