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研究生:葉懿儂
研究生(外文):Yi-Nung Yeh
論文名稱:應用賽局理論分析合作式通訊於大型無線隨意網路之效能與未來大型無限隨意網路設計
論文名稱(外文):Is Cooperation Beneficial to Entire Wireless Networks?
指導教授:陳光禎陳光禎引用關係
口試委員:楊谷章張時中李志鵬鄭憲宗
口試日期:2013-07-24
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:電信工程學研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2013
畢業學年度:101
語文別:英文
論文頁數:52
中文關鍵詞:合作式通訊大型無線網路賽局理論
外文關鍵詞:cooperative communicationlarge-scale wireless networkgame theory
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在這份論文中我們探討了合作式通訊是否在大型無線網路中依然有
利,並且用賽局理論分析每個使用者根據理性決定是否使用合作式通
訊之下,整體網路的效能。根據此研究,我們發現在大型無線網路中,
在網路流量低且節點數目時,使用合作式通訊可以增進網路整體之效
能。反之,使用合作式通訊並無法達到增進網路效能之目的。
過去研究證明對於單一的傳送對,合作式通訊可以增進傳送成功
率。但是當合作式通訊用在無線網路中,每個接收端除了收到來自別
的傳送端的干擾,也會收到來自於別的 relay 端的干擾,因此使得整體
網路的干擾變大。因此,在一個無線網路中,使用合作式通訊是否能
夠達成增進傳送成功率的效果,是一個重要的問題。
在無線網路中,每個節點會根據他所擁有的資訊來做是否使用合作
式通訊的決定,因為獲得資訊需要花費額外成本,每個節點需要在獲
得資訊的花費成本與做更準確決定所得到的好處 (傳輸效能上升) 之間
權衡。在本研究中我們探討了獲得資訊的成本大小如何影響每個節點
做是否使用合作式通訊的決定,以及對於整體網路效能之影響。
根據我們的研究成果,我們將提出設計未來大型無線網路之準則。

Since the introduction of cooperative communications to greatly en-
hance single-link capability to against channel fading and outage, co-
operative communications and cooperative networks involving multi-
terminals have been extensively studied. However, in general wireless (ad
hoc) networks, cooperation introduces extra interference and communi-
cation cost of relay transmissions have not been notably investigated.
With the help of stochastic geometry, we model the decision algorithm
of cooperative relay at each node by the game theory and adjustment
of corresponding payoff function. Our results suggest the conditions for
a node to act as a relay and thus situations to benefit entire network
performance, while cooperation is indeed beneficial for lighter traffic and
mild node density.

Contents
誌謝 ii
中文摘要 iii
Abstract iv
1 Introduction 1
1.1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Background Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.1 Machine-to-machine Communication . . . . . . . . . . . . . . 5
1.2.2 Cooperation Communication [?] . . . . . . . . . . . . . . . . . 5
1.2.3 Motivation and goal of thesis . . . . . . . . . . . . . . . . . . 6
1.2.4 Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Preliminaries 9
2.1 Poisson Point Process . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.1 Stationary PPP . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.2 Poisson shot noise process . . . . . . . . . . . . . . . . . . . . 9
2.1.3 The thinning of a PPP . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Game Theory and Decision Making . . . . . . . . . . . . . . . . . . . 11
3 Network Model and Relay Selection Protocol 13
3.1 Network Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Relay Selection Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 14
v4 Communication Schemes 16
4.1 Known Information of Decision Scheme . . . . . . . . . . . . . . . . . 17
4.2 Not Known Information of Decision Scheme . . . . . . . . . . . . . . 20
5 Problem Formulation 23
5.1 Known Information of Decision Scheme . . . . . . . . . . . . . . . . . 23
5.2 Not Known Information of Decision Scheme . . . . . . . . . . . . . . 24
6 Problem Analysis 27
6.1 Known Information of Decision Scheme . . . . . . . . . . . . . . . . . 27
6.2 Not Known Information of Decision Scheme . . . . . . . . . . . . . . 32
7 Numerical result 35
7.1 Known Information of Decision Scheme . . . . . . . . . . . . . . . . . 35
8 Conclusion and Future Work 48
8.1 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.2 Future Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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