Adaptive Amplify-and-Forward Relaying for Cellular Downlink

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概要

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• This paper presents an adaptive amplify-and-forward (AF)-type relay method appropriate for the cellular downlink. The proposed method adaptively selects active relay stations (RSs) based on the path loss between each set of user equipment (UE) and the base station (BS) and that between each RS in order to avoid unnecessary enhancement of inter-cell interference and bandwidth reduction due to transmission relay. Furthermore, to enhance the spectrum efficiency under relay transmission, the frequency used for the relay transmission from the RS to the cell-edge user is reused for the direct transmission from the BS to the cell-center user. Based on computer simulations, the system-level average throughput and cell-edge user throughput of the proposed method are compared to those for cases using no relaying or a conventional repeater. The simulation results show the effectiveness of the proposed method.

著者

• TATEISHI Kiichi

  Graduate School of Science and Technology, Tokyo University of Science

• HIGUCHI Kenichi

  Graduate School of Science and Technology, Tokyo University of Science

関連論文

• Clipping and Filtering-Based Adaptive PAPR Reduction Method for Precoded OFDM-MIMO Signals
• Adaptive Amplify-and-Forward Relaying for Cellular Downlink
• A Simple Decentralized Cell Association Method for Heterogeneous Networks

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