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Two-way relaying for multiple applications in wireless sensor networks

Chen, Zhiliang and Kuehne, Alexander and Klein, Anja and Loch, Adrian and Hollick, Matthias and Widmer, Joerg (2012) Two-way relaying for multiple applications in wireless sensor networks. In: The 16th International ITG Workshop on Smart Antennas (WSA 2012), 7-8 March 2012, Dresden, Germany .

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Abstract

Recent work in wireless sensor networks implies possibilities of concurrent support of multiple applications. In this paper, we discuss a novel scheme called hybrid computation in two-way relaying, which introduces cooperation of three sensor nodes to support bi-directional communications of two applications. Applications in wireless sensor networks require different computations and forms of aggregation. In the proposed scheme, different computations at the intermediate node are integrated in a two-way relaying scheme. For computations and transmissions in the proposed scheme, data from all three nodes are considered. We propose a superposition coding protocol and a time division protocol to handle the transmission of the messages from the intermediate node. The problem of maximizing the sum rate is discussed. The results show that the superposition coding protocol outperforms the time division protocol.

Item Type: Conference or Workshop Papers (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Depositing User: Joerg Widmer
Date Deposited: 17 Jan 2013 11:38
Last Modified: 03 Dec 2014 08:26
URI: http://eprints.networks.imdea.org/id/eprint/381

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