Capacity Bound of MIMO Systems with MPSK Modulation and Superimposed Pilots(MIMO System, <Special Section>Information Theory and Its Applications)
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概要
- 論文の詳細を見る
The enormous capacity potential of multiple-input multiple-output (MIMO) is based on some unrealistic assumptions, such as the complete channel state information (CCSI) at the receiver and Gaussian distributed data. In this paper, in frequency-flat Rayleigh fading environment, we investigate the ergodic capacity of MIMO systems with M-ary phase-shift keying (MPSK) modulation and superimposed pilots for channel estimation. With linear minimum mean square error (LMMSE) channel estimation, the optimal pilots design is presented. For the mathematical tractability, we also derive an easy-computing closed-form lower bound of the channel capacity. Furthermore, the optimal power allocation between the data and pilots is investigated by numerical optimization. It is shown that more power should be devoted to the data in low SNR environments and to the pilots in high SNR environments.
- 社団法人電子情報通信学会の論文
- 2005-10-01
著者
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REN Yong
Department of Electronic Engineering, Tsinghua University
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Zhao Ming
Department of Oral Pathology, Faculty of Dentistry, Hiroshima University
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Wang Jing
Department of Environmental Health, School of Medicine, University of Yamanashi
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Wang Jing
Tsinghua Univ. Beijing Chn
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Wang Jing
National Laboratory For Information Science And Technology Tsinghua University
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Ren Yong
Department Of Electronic Engineering Tsinghua University
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Wang Jing
State Key Laboratory On Microwave And Digital Communications Tsinghua National Laboratory For Inform
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Zhao Ming
State Key Laboratory On Microwave And Digital Communications Tsinghua National Laboratory For Inform
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ZHAO Yifei
Department of Electronic Engineering, Tsinghua University
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Wang Jing
State Key Laboratory On Microwave And Digital Communications Tsinghua National Laboratory For Inform
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Zhao Ming
National Laboratory For Information Science And Technology Tsinghua University
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Wang Jing
Department Of Echocardiography Union Hospital Tongji Medical College Huazhong University Of Science
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Zhao Ming
Department Of Dermatology Epigenetic Research Center Second Xiangya Hospital Central South Universit
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Ren Yong
Department Of Electronic Engineering Of Tsinghua University
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Wang Jing
Department Of Biological Sciences Texas Tech University
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