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Conference Publication

Data aggregation and recovery for the internet of things: A compressive demixing approach

Host Publication: 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018

Authors: E. Zimos, J. Mota, E. Tsiligianni, M. Rodrigues and N. Deligiannis

Publication Date: Jun. 2018

Number of Pages: 6


Abstract:

Large-scale wireless sensor networks (WSNs) andInternet-of-Things (IoT) applications involve diverse sensingdevices collecting and transmitting massive amounts of heterogeneousdata. In this paper, we propose a novel compressivedata aggregation and recovery mechanism that reduces the globalcommunication cost without introducing computational overheadat the network nodes. Following the principles of compressivedemixing, each node of the network collects measurement readingsfrom multiple sources and mixes them with readings fromother nodes into a single low-dimensional measurement vector,which is then relayed to other nodes the constituent signalsare recovered at the sink using convex optimization. Our designachieves significant reduction in the overall network data ratescompared to prior schemes based on (distributed) compressedsensing or compressed sensing with (multiple) side information.Experiments using real large-scale air-quality data demonstratethe superior performance of the proposed framework againststate-of-the-art solutions, with and without the presence ofmeasurement and transmission noise.

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Dr. Evangelia Tsiligianni

+32 (0)02 629 168

etsiligi@etrovub.be

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Prof. Dr. Ir. Nikolaos Deligiannis

+32 (0)02 629 168

ndeligia@etrovub.be

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