Sum Rate Enhancement for Device-to-Device Communication with Simultaneous Transmission
Date Issued
2014
Date
2014
Author(s)
Tu, Ping-Tsung
Abstract
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, slow delays,
low power consumption, etc. However, if D2D and cellular user equipments
(UEs) transmit in the same radio resource block (RB), 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 paper (DPC) to remove the interference from
cellular UE to D2D UE. We also propose scheduling algorithm and dynamic
power allocation mechanism to improve performance of UL systems. By simulations,
we show that the proposed mechanisms can improve performance
of the entire communication systems.
Subjects
裝置對裝置通訊
長期演進技術系統
傳輸功率控制
髒紙解碼
Type
thesis
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