Journal of Information Technology Services (한국IT서비스학회지)

Korea Society of IT Services (한국IT서비스학회)
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Specific Device Discovery Method for D2D Communication as an Underlay to LTE-Advanced Networks

LTE-Advanced 네트워크에서 D2D 통신을 위한 특정 디바이스 탐색 기법

  • 김향미 (강릉원주대학교 컴퓨터공학과) ;
  • 이한나 (강릉원주대학교 컴퓨터공학과) ;
  • 김상경 (강릉원주대학교 컴퓨터공학과)
  • Received : 2014.01.24
  • Accepted : 2014.03.14
  • Published : 2014.03.31
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Abstract

Device discovery for D2D (device-to-device) communication enables a device to discover other devices in order to initiate communication with them. Devices should perform the discovery phase using a small quantity of radio resource in a short time and be able to reduce the load of the base station. Legacy device discovery schemes have focused on discovering as many target devices as possible. However, it is not appropriate for peer-to-peer D2D communication scenario. Further, synchronization problems are an important issue for discovery signal transmission. This paper proposes a discovery method that one requesting device discovers a specific target for communication. Multiple antenna beamforming is employed for the synchronization between the base station and a target device. The proposal can reduce the load of the base station using the information that it already maintains and improve the reliability of the device discovery because two times of synchronizations using beamforming among the base station and devices can make the exact discovery of a target device with mobility possible.

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References

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