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Beamforming and User Scheduling for Device-to-Device Underlaying Cellular Networks  

Park, Sung-Soo (Yonsei University)
Bang, Keuk-Joon (Induk University)
Hong, Dae-Sik (Yonsei University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.49, no.2, 2012 , pp. 9-16 More about this Journal
Abstract
In this paper, the beamforming and user scheduling scheme for device-to-device (D2D) underlaying celullar networks with partial channel state information is investigated. In the proposed scheme, cellular users whose channels are nearly orthogonal to the channel between base station and D2D receiver are selected for unitary beamforming so as to minimize the interference to the D2D receiver. The interference caused by underlaying D2D communication can be minimized by reducing the D2D transmitter's transmission power. To enhance the cellular users' throughput further, we also investigate codebook generation method in which each code vector belongs to multiple unitary code matrices. From simulation results, we show that the proposed beamforming and user scheduling scheme mitigates D2D interference to the cellular networks and the codebook generation method improves cellular users' throughput.
Keywords
device-to-device (D2D) communication; beamforming; user scheduling;
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Times Cited By KSCI : 1  (Citation Analysis)
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