用於廣義非同調區塊編碼MPSK的解碼演算法

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姓名

陳彥銘(Yen-Ming Chen) 查詢紙本館藏

畢業系所

通訊工程學系

論文名稱

用於廣義非同調區塊編碼MPSK的解碼演算法
(Decoding Algorithms for Generalized Noncoherent Block-Coded MPSK)

相關論文

★ 具有快速改變載波相位之籬柵編碼MPSK 的非同調解碼	★ 用於非同調解碼之多層次編碼調變
★ 么正空間時間籬柵碼之解碼演算法	★ 由多層次編碼所架構之非同調碼
★ 用於非同調檢測之與空時區塊碼連結的區塊編碼調變	★ 用於正交分頻多工系統具延遲處理器的空時碼
★ 用於非同調區塊編碼MPSK之A*解碼演算法	★ 在塊狀衰退通道上的籬柵么正空時調變
★ 用於非同調區塊編碼MPSK之Chase演算法	★ 使用決定回授檢測之相差空時調變的一種趨近同調特性
★ 具延遲處理器的空時碼之軟式輸入輸出遞迴解碼	★ 用於非同調區塊編碼MPSK的最大可能性解碼演算法
★ 具頻寬效益之非同調調變	★ 非同調空時渦輪碼
★ 循環字首及補零正交分頻多工系統經預編碼後之頻譜比較	★ 循環字首及補零正交分頻多工系統在時序同步上之效能比較

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摘要(中)

在同調偵測下，用多層編碼的區塊編碼調變(BCM)是具有頻寬效益的編碼架構。最近一個新的用於非同調偵測的區塊編碼調變架構，稱作非同調區塊編碼MPSK (noncoherent block coded MPSK , NBC- MPSK)已被提出。非同調區塊編碼MPSK可輕易的由選擇適當的成份碼來設計。更進一步的，基於A*解碼法的用於非同調區塊編碼MPSK的最大相似解碼法也已被提出。
在本篇論文中，我們首先修正其最大相似解碼演算法以更進一步降低解碼複雜度，並與另一個近似最佳的具線性複雜度的非同調多階層解碼器做比較。接著我們提出用於非同調區塊編碼MPSK於多重天線系統下的推廣的最大相似以及降低複雜度的解碼演算法。更進一步的，我們將效能與文獻上的數種編碼架構做比較與整理。

摘要(英)

For coherent detection, block coded modulation encoded by multilevel coding is a bandwidth efficient scheme. Recently, a novel block coded modulation scheme for noncoherent detection, called Noncoherent Block-Coded MPSK (NBC-MPSK), was proposed. The NBC-MPSK can be easily designed by properly choosing binary linear block codes as the component codes. Moreover, a maximum-likelihood (ML) decoding algorithm based on A* decoding algorithm for NBC-MPSK was also proposed.
In this thesis, we first modify the ML decoding algorithm to further reduce the decoding complexity, and compare it with a near-optimal linear-complexity noncoherent multistage decoder. Then we propose ML and complexity-reduced decoding algorithms for the generation of NBC-MPSK on multi-antenna system. Furthermore, we compare the error performance with several codes in the literature.

關鍵字(中)

★ 區塊編碼調變
★ 非同調偵測
★ 多重天線系統
★ A*解碼法

關鍵字(英)

★ noncoherent detection
★ multi-antenna system
★ block coded modulation
★ A* decoding algorithm

論文目次

1 Introduction 1
2 Reviews of NBC-MPSK and its ML Decoding Algorithm 4
2.1 A Review of NBC-MPSK 5
2.1.1 Noncoherent Detection 5
2.1.2 Code Construction 6
2.1.3 Multistage Decoding with The Estimate of Channel Phase 12
2.2 A Review of ML Decoding Algorithm for NBC-MPSK 16
2.2.1 Binary-Tree Representation 16
2.2.2 The Heuristic Function 18
2.2.3 Sorting Received Symbols 20
2.2.4 Decoding Process 21
3 Decoding Algorithms for NBC-MPSK 29
3.1 Modified ML Decoding Algorithm 30
3.2 Near-Optimal Linear-Complexity Noncoherent Multistage Decoding 37
4 Decoding Algorithms for NSTBC-MPSK 40
4.1 Introduction of NSTBC-MPSK 41
4.1.1 Review of Unitary Space-Time Modulation 41
4.1.2 Code Construction 43
4.2 ML Decoding Algorithm 46
4.3 Complexity-Reduced Decoding Algorithm 51
5 Simulation Results of Error Performance 56
5.1 Comparing with Training Code 56
5.2 Comparing with Other Training-Based Codes 70
6 Conclusions and Future Works 82
References 83

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指導教授

魏瑞益(Ruey-Yi Wei)

審核日期

2006-7-4

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