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研究生: 張立言
Li-Yen Chang
論文名稱: 全雙工雲端接取網路中基於Wyner-Ziv上行壓縮之波束成型設計
Uplink-Downlink Beamforming Design for Full-duplex Cloud Radio Access Network with Wyner-Ziv uplink Compression
指導教授: 林士駿
Shih-Chun Lin
口試委員: 張縱輝
黃昱智
宋峻宇
學位類別: 碩士
Master
系所名稱: 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年: 2019
畢業學年度: 107
語文別: 英文
論文頁數: 53
中文關鍵詞: 波束成型全雙工無線雲端接取網路
外文關鍵詞: Full-duplex, Cloud Radio Access Network, Wyner-Ziv
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在本篇論文中,我們考慮了一在有限前傳容量下無線雲端接取網路架構,包含了中央基頻單元以及全雙工無線電單元服務半雙工行動上傳及下載用戶。我們的目標是在一定的訊雜比要求以及前傳容量要求之下最小化無線電單元與上傳用戶的功率。在無線電單元我們使用了Wyner-Ziv壓縮技術來達到各基地台間干擾成功消除,並從半雙工系統推廣至全雙工系統,全雙工相較於半雙工系統需要考慮無線電單元之間的干擾,自己對自己的干擾以及上傳用戶對下載用戶的干擾。並提出以二階錐規劃為基礎的演算法來優化最小功率的問題,此外也提出對偶問題來降低計算複雜度。


In this thesis, we consider a cloud radio acess network (CRAN)
with nite fronthaul capacity architecture, which includes a centralized
baseband unit (BBU) pool and a set of full-duplex (FD)
remote radio heads (RRHs) serving a set of half-duplex (HD)
downlink and uplink mobile users. Our goal is to minimize total
transmit power of RRHs and uplink mobile users under each
SINR and fronthaul capacity constraints. First, we consider a
per-base-station successive interference cancellation (SIC) scheme
that performs Wyner-Ziv compress-and-forward at RRHs, we use
half-duplex system model at RRHs and derive achievable rate for
uplink users under nite fronthaul link. Further we use full-duplex
system model at RRHs, compared to half-duplex model, now we
have to manage the interference such as self-interference, inter-
RRH interference and uplink to downlink interference. Secondorder
cone program (SOCP) based algorithm is proposed to
solve power minimization problem and Uplink-Downlink Duality
strategies is proposed to reduce calculation complexity. Simulation
results are presented to evaluate the proposed algorithms.

1 Introduction 1.1 CRAN architecture 1.2 Full-duplex CRAN and beamforming design 1.3 Wyner-Ziv compression 2 Half-duplex CRAN with Wyner-Ziv 2.1 Downlink signal model 2.2 Uplink signal model 2.3 Problem formulation 3 Full-duplex CRAN with Wyner-Ziv 3.1 Downlink Signal Model 3.2 Uplink Signal Model 3.3 Problem formulation: SOCP-based Algorithm 3.4 Uplink and Downlink Duality Low-Complexity AO 4 Simulation and Analysis 4.1 Simulation result of Half-duplex CRAN with wyner-ziv 4.2 Simulation result of Full-duplex CRAN with wyner-ziv 5 Conclusion 5.1 Summary 5.2 Future Works

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