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2015•Unpublished venueRequires access

Spectrum sharing in D2D enabled HetNet

Jussi Kerttula, Yihenew Dagne Beyene, Nicolas Malm, Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Riku Jäntti

Open publisher page 4 citations

Abstract

This demonstration presents dynamic spectrum use by an overlay Device-to-Device (D2D) connection in a Heterogeneous Network (HetNet) environment. D2D devices can reuse the uplink resources of the cellular network. In a HetNet, the cellular users should be protected from excessive interference from the D2D connections. This is especially so for small cells as D2D transmitters may come arbitrarily close to the small cell base stations. We demonstrate how the cellular traffic can be protected by prohibiting the D2D reuse close to the cellular base stations by measuring the signal strength at the D2D devices. Our measurement results show that in the case of small cells, fast changes in the signal strength proposes challenges to the decision making algorithm. A demonstration with a software defined radio TD-LTE platform is shown.

About this research paper

What this paper is about

This demonstration presents dynamic spectrum use by an overlay Device-to-Device (D2D) connection in a Heterogeneous Network (HetNet) environment. D2D devices can reuse the uplink resources of the cellular network. In a HetNet, the cellular users should be protected from excessive interference from the D2D connections. This is especially so for small cells as D2D transmitters may come arbitrarily close to the small cell base stations. We demonstrate how the cellular traffic can be protected by prohibiting the D2D reuse close to the cellular base stations by measuring the signal strength at the D2D devices. Our measurement results show that in the case of small cells, fast changes in the signal strength proposes challenges to the decision making algorithm. A demonstration with a software defined radio TD-LTE platform is shown.

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Available abstract

This demonstration presents dynamic spectrum use by an overlay Device-to-Device (D2D) connection in a Heterogeneous Network (HetNet) environment. D2D devices can reuse the uplink resources of the cellular network. In a HetNet, the cellular users should be protected from excessive interference from the D2D connections. This is especially so for small cells as D2D transmitters may come arbitrarily close to the small cell base stations. We demonstrate how the cellular traffic can be protected by prohibiting the D2D reuse close to the cellular base stations by measuring the signal strength at the D2D devices. Our measurement results show that in the case of small cells, fast changes in the signal strength proposes challenges to the decision making algorithm. A demonstration with a software defined radio TD-LTE platform is shown.

Key concepts: Heterogeneous network, Cellular network, Base station, Computer science, Telecommunications link, Computer network, Reuse, Interference (communication)

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