NDLI: Using cooperative MIMO techniques and UAV relay networks to support connectivity in sparse Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Marinho, M.A.M. de Freitas, E.P. Lustosa da Costa, J.P.C. de Almeida, A.L.F. de Sousa Jr., R.T.
Copyright Year	2013
Description	Author affiliation: Dept. of Teleinformatics Eng., Fed. Univ. of Ceara, Sobral, Brazil (de Almeida, A.L.F.) \|\| Dept. of Electr. Eng., Univ. of Brasilia, Brasilia, Brazil (Marinho, M.A.M.; de Freitas, E.P.; Lustosa da Costa, J.P.C.; de Sousa, R.T., Jr.)
Abstract	One possible way to define the end of lifetime for a Wireless Sensor Network (WSN) is to set a threshold for the number of disconnections among the sensor nodes so that above this level the WSN becomes unable to provide the quality of services required by the users or even totally loses its ability to provide any service at all. Disconnections isolate sensors or group of sensors which cannot deliver their acquired data, thus constituting a sparse nonfunctional WSN, although some of its isolated or grouped sensors remain operational. A possible way to overcome such a problem is to provide an alternative reliable connection via other types of nodes to support the communication among isolated parts of a disconnected network. This paper proposes the use of cooperative multiple input multiple output (MIMO) techniques to support communication among static sensors in a sparse WSN and a relay network composed of Unmanned Aerial Vehicles (UAVs) keeping the WSN connected, thus extending its lifetime. Simulations of the proposed approach are performed and the acquired results highlight the benefits of this proposal.
Sponsorship	IEEE Vietnam Sect.
Starting Page	49
Ending Page	54
File Size	569797
Page Count	6
File Format	PDF
ISBN	9781467320870
e-ISBN	9781467320887
DOI	10.1109/ComManTel.2013.6482364
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-21
Publisher Place	Vietnam
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Base stations Cooperative multiple input multiple output Unmanned aerial vehicles relay network MIMO Energy efficiency Mobile nodes Relays Network connectivity
Content Type	Text
Resource Type	Article

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