Least-Squares Zero-Forcing User-Ordered Successive Interference Cancellation for Multi-User STBC Systems(Mobile Communication, <Special Section>Wireless Technologies and Computational Electromagnetics)
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概要
- 論文の詳細を見る
A multi-user space-time block coding (STBCa) system is a multi-access system where co-channel users employ space-time block codes (STBC). In this paper, we aimed at the design of efficient zeroforcing (ZF) receivers, especially ZF iterative interference cancellation (IC) receivers, for multi-user {G_2, G_3, G_4} STBC systems with an arbitrary number of users, based on the identification of algebraic properties existing in the systems. First, we identify some algebraic properties for {G_2, G_3, G_4} STBC systems. Then, utilizing these algebraic properties, we further expose two significative properties, called "ZF output uncorrelated property" and "ZF output equal Post-detection SNR property" respectively, for least-squares (LS) ZF receivers in multi-user {G_2, G_3, G_4} STBC systems by detailed proofs. Based on the two properties, a novel LS ZF user-ordered successive interference cancellation (ZF UOSIC) detection algorithm is proposed subsequently. Finally, simulation results show that ZF UOSIC is superior to the conventional ZF IC and maximum-likelihood (ML) algorithms and the non-ordered ZF user-based SIC (ZF USIC) algorithm due to adopting iterative IC and optimal ordering among users, and has very close performance to the ZF symbol-ordered SIC but with lower complexity due to the fewer iterative times.
- 社団法人電子情報通信学会の論文
- 2005-12-01
著者
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XU Youyun
Department of Electronics, Shanghai Jiao Tong University
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Xu Youyun
Department Of Electronic Engineering Shanghai Jiao Tong University
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Xu Youyun
Department Of Electronic Engineering Shanghai Jiaotong University:nanjing Institute Of Communication
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LUO Hanwen
Department of Electronics Engineering, Shanghai Jiao Tong University
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Luo Hanwen
Department Of Electronic Engineering Shanghai Jiao Tong University
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Luo Hanwen
Department Of Electronic Engineering Shanghai Jiaotong University
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FAN Xun
Department of Electronic Engineering, Shanghai Jiaotong University
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HUANG Jianguo
Department of Electronic Engineering, Shanghai Jiaotong University
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Huang Jianguo
Department Of Chemistry Zhejiang University
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Huang Jianguo
Department Of Electronic Engineering Shanghai Jiaotong University:college Of Marine Engineering Nort
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Fan Xun
Department Of Electronic Engineering Shanghai Jiao Tong University
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Fan Xun
Department Of Electronic Engineering Shanghai Jiaotong University
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