電機資訊學院: 電信工程學研究所指導教授: 蘇炫榮曾顯博Tseng, Hsien-BoHsien-BoTseng2017-03-062018-07-052017-03-062018-07-052015http://ntur.lib.ntu.edu.tw//handle/246246/276062裝置對裝置(D2D)通訊是長期演進技術升級版(LTE-A)的技術，裝置對裝置可以在傳統的頻段上直接建立連線，裝置對裝置有著物理上近距離傳出的特性，因此有較高的傳輸速率、低延遲、低功率消耗等優點。我們提出了一個方法可以讓用戶同時傳輸其裝置對裝置的資料以及蜂巢網路上傳的資料，由於使用同一個資源塊(RB)傳輸，兩筆資料將對彼此產生影響並且降低整體的系統效能，因此我們使用髒紙編碼(DPC)來解決此問題，使用髒紙編碼可以消除傳統裝置對於裝置對裝置通訊接收端的干擾。我們也探討不同的排程演算法以及功率分配方法改善整體系統效能。最後藉由模擬，展示出我們所提出的方法對於改善整體通訊系統的表現。Device-to-Device (D2D) communication is a technology component for LTE- A. D2D would enable the direct communication of a device to another device using the cellular spectrum. D2D takes advantage of the physical proximity of communication devices, for example, high bit rate, low delays, low power consumption, etc. We propose a scheme that allows a D2D user to simultaneously transmit D2D and cellular signals in D2D-enabled cellular system. The proposed scheme has the advantage of frequency reuse. However, if D2D and cellular user equipments (UEs) transmit in the same radio resource blocks (RBs), co-channel interference will occur, which may decrease performance of cellular networks, and D2D will most likely fail. Therefore, we propose a precoding mechanism which uses the dirty paper coding (DPC) to remove the interference from cellular UE to D2D UE. We investigate different scheduling algorithms and dynamic power allocation mechanism to improve performance of the systems. By simulations, we show that the proposed mechanisms can improve performance of the entire communication systems.4507878 bytesapplication/pdf論文公開時間: 2020/8/20論文使用權限: 同意有償授權(權利金給回饋學校)裝置對裝置通訊長期演進技術系統傳輸功率控制髒紙編碼device-to-device communicationLTE systemtransmit power controldirty paper codingthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/276062/1/ntu-104-R02942036-1.pdf