Interference Avoidance Based on Shared Relay Nodes for Device-to-Device Radio Underlying Cellular Networks

Mochan YANG; Shannai WU; Hak-Seong KIM; Kyong-Bin SONG; Won Cheol LEE; Oh-Soon SHIN; Yoan SHIN

doi:10.1587/transfun.E97.A.704

Regular Section

Interference Avoidance Based on Shared Relay Nodes for Device-to-Device Radio Underlying Cellular Networks

Mochan YANG, Shannai WU, Hak-Seong KIM, Kyong-Bin SONG, Won Cheol LEE, Oh-Soon SHIN, Yoan SHIN

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Keywords: 3GPP LTE-Advanced, device-to-device, shared relay node, resource allocation, interference avoidance

JOURNAL RESTRICTED ACCESS

2014 Volume E97.A Issue 2 Pages 704-707

DOI https://doi.org/10.1587/transfun.E97.A.704

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Abstract

A D2D (Device-to-Device) communication system needs to cope with inter-cell interference and other types of interferences between cellular network and D2D links. As a result, macro user equipments, particularly those located near a cell edge, will suffer from serious link performance degradation. We propose a novel interference avoidance mechanism assisted by the SRN (Shared Relay Node) in this letter. The SRN not only performs data re-transmission as a typical type-II relay, but has several newly defined features to avoid interference between cellular network and D2D links. The superb performance by the proposed scheme is evaluated through extensive system level simulations.

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