000203835 001__ 203835
000203835 005__ 20190317000050.0
000203835 022__ $$a0733-8716
000203835 02470 $$2ISI$$a000358211600002
000203835 0247_ $$2doi$$a10.1109/JSAC.2015.2391689
000203835 037__ $$aARTICLE
000203835 245__ $$aThe Beauty of the Commons: Optimal Load Sharing by Base Station Hopping in Wireless Sensor Networks
000203835 269__ $$a2015
000203835 260__ $$c2015
000203835 300__ $$a12
000203835 336__ $$aJournal Articles
000203835 520__ $$aIn wireless sensor networks (WSNs), the base station (BS) is a critical sensor node whose failure causes severe data losses. Deploying multiple fixed BSs improves the robustness, yet requires all BSs to be installed with large batteries and large energy-harvesting devices due to the high energy consumption of BSs. In this paper, we propose a scheme to coordinate the multiple deployed BSs such that the energy supplies required by individual BSs can be substantially reduced. In this scheme, only one BS is selected to be active at a time and the other BSs act as regular sensor nodes. We first present the basic architecture of our system, including how we keep the network running with only one active BS and how we manage the handover of the role of the active BS. Then, we propose an algorithm for adaptively selecting the active BS under the spatial and temporal variations of energy resources. This algorithm is simple to implement but is also asymptotically optimal under mild conditions. Finally, by running simulations and real experiments on an outdoor testbed, we verify that the proposed scheme is energy-efficient, has low communication overhead and reacts rapidly to network changes.
000203835 6531_ $$aWireless sensor networks
000203835 6531_ $$amultiple base station
000203835 6531_ $$aload sharing
000203835 6531_ $$arenewable energy supply
000203835 700__ $$0246435$$aZhang, Runwei$$g199314
000203835 700__ $$0240359$$aIngelrest, François$$g177282
000203835 700__ $$0241123$$aBarrenetxea, Guillermo$$g136301
000203835 700__ $$0240373$$aThiran, Patrick$$g103925
000203835 700__ $$0240184$$aVetterli, Martin$$g107537
000203835 773__ $$j33$$k8$$q1480-1491$$tIEEE Journal on Selected Areas in Communications
000203835 8560_ $$fmihailo.kolundzija@epfl.ch
000203835 8564_ $$s1534649$$uhttps://infoscience.epfl.ch/record/203835/files/JSACZhang14.pdf$$yPublisher's version$$zPublisher's version
000203835 909C0 $$0252056$$pLCAV$$xU10434
000203835 909C0 $$0252454$$pLCA3$$xU10431
000203835 909CO $$ooai:infoscience.tind.io:203835$$pIC$$particle$$qGLOBAL_SET
000203835 917Z8 $$x199314
000203835 917Z8 $$x190838
000203835 937__ $$aEPFL-ARTICLE-203835
000203835 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000203835 980__ $$aARTICLE