多輸入多輸出下同時訊息及能量傳輸系統之設計與模擬

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姓名

田昀浩(Yun-Hao Tien) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

多輸入多輸出下同時訊息及能量傳輸系統之設計與模擬
(Design and Simulation of MIMO Simultaneous Wireless Information and Power Transfer Systems)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

能量採集是延長有限能量設備運轉時間的解決方案，其中射頻訊號做為能量採集使用已經是可行的遠距離能量傳輸方式，而本篇將針對多輸入多輸出系統下利用功率分流器達成同時訊息及能量傳輸進行探討。
訊息傳遞的目標是要讓系統傳輸量最大化，對於能量的傳遞則是希望讓接收端能獲取最多的能量，然而受限於目前硬體的限制，射頻的訊號並不能同時做為訊息和能量的接收使用，因此如何分配射頻訊號便是本篇要探討的問題之一。另外在多天線下對於發送波束成形的設計，也會改變訊息及能量接收的多寡，且發對於訊息及能量為目標設計的波束成形並不相同。
多使用者的情況比單使用者多了使用者之間的干擾，這些干擾會降低訊息的傳輸量，但可以做為能量接收提升能量獲取量。傳統訊息傳輸的多使用者干擾問題便非常的困難，加入能量的傳輸後系統將更複雜，本篇將簡化分析並引入干擾對齊的概念設計可行的解決方案。

摘要(英)

Energy harvesting (EH) can be used to charge the battery and thus prolong the survival time of the device. RF signals can be used to transfer energy, therefore it can be a new source for energy harvesting. Wireless energy harvesting (WEH) is becoming an important aspect of EH. Since RF signals can be used as a vehicle for both transmitting information and transferring energy in wireless networks, simultaneous wireless information and power transfer (SWIPT) has attracted much attention.
We consider that receiver has power splitter to splitting the received power into two parts. Then the receiver can simultaneous decoding information and harvesting energy. We first consider one-user case in multiple-input multiple-output (MIMO) system, then extend to Multi-user case. Finally, consider multi-user power splitting combined with the interference alignment technology.

關鍵字(中)

★ 能量傳輸
★ 干擾對齊
★ 功率分流
★ 天線選擇

關鍵字(英)

★ Energy harvesting
★ Wireless power transfer
★ Interference alignment
★ simultaneous wireless information and power transfer

論文目次

摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vi
表目錄 vii
第一章緒論 1
1.1 研究背景與動機 1
1.2 文獻探討 3
第二章單一使用者 5
2.1 功率分流器 5
2.2 系統架構 6
2.3 功率分流 7
2.4 天線選擇 8
第三章多使用者-天線選擇 10
3.1 消除干擾 10
3.2 接收天線選擇 11
3.2.1 通道的弗羅貝尼烏斯範數 12
3.2.2弦距(chordal distance) 13
3.2.3 等效通道 13
第四章干擾對齊 15
4.1對齊可實現性 17
4.2 最小化干擾溢出 17
4.3最大SINR迭代法 19
第五章干擾對齊應用於能量傳輸 21
5.1 基於干擾對齊下的統一功率分流 22
5.2 基於干擾對齊下的天線選擇 23
5.2.1 Reverse SINR 24
第六章模擬結果 26
6.1 單一使用者 26
6.2 多使用者-天線選擇 28
6.3 基於干擾對齊下的統一功率分流 31
6.4 基於干擾對齊下的天線選擇 33
6.5 綜合比較 35
第七章結論 37
附錄 38
附錄A 38
拉格朗日對偶函數 38
對偶問題 41
附錄B 42
文獻參考 45

參考文獻

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指導教授

古孟霖(Meng-Lin Ku)

審核日期

2016-8-10

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