Design of Optimal Linear Precoder and Decoder for MIMO Channels with Per Antenna Power Constraint and Imperfect CSI

This paper addresses the problem of designing joint optimum precoder and decoder for multiple-input multiple-output communication system. Conventionally, most of the joint precoder and decoder designs are based on the sum power constraint (SPC) at the transmitter and perfect channel state informatio...

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Vydané v:	Wireless personal communications Ročník 75; číslo 2; s. 1251 - 1263
Hlavní autori:	Merline, A., Thiruvengadam, S. J.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Boston Springer US 01.03.2014 Springer
Predmet:	Antennas Applied sciences Channels Communication systems Communications Engineering Computer Communication Networks Decoders Design engineering Engineering Exact sciences and technology Networks Optimization Radiocommunications Signal,Image and Speech Processing Simulation Statistical process control Telecommunications Telecommunications and information theory Per antenna power constraint Imperfect CSI MIMO Precoder MSE MIMO system Transmission channel Decoding circuit Optimization Mean square error Precoding Channel estimation Linearity Defect Wireless network Objective function Power amplifier Antenna Mathematical programming
ISSN:	0929-6212, 1572-834X
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Abstract	This paper addresses the problem of designing joint optimum precoder and decoder for multiple-input multiple-output communication system. Conventionally, most of the joint precoder and decoder designs are based on the sum power constraint (SPC) at the transmitter and perfect channel state information (CSI). However, in practice, per-antenna power constraint is more realistic as the power at each transmit antenna is limited individually by the linearity of the power amplifier. Further, the estimate of CSI cannot be obtained perfectly by any methods. Under imperfect CSI, the aim is to design jointly optimum precoder and decoder subject to a power constraint that jointly meets both per-antenna and SPCs. The objective function is formulated into an optimization problem that minimizes the mean square error in estimating the transmitted signal. The simulation results show that the proposed scheme has a near-optimum performance under practical constraints.
AbstractList	This paper addresses the problem of designing joint optimum precoder and decoder for multiple-input multiple-output communication system. Conventionally, most of the joint precoder and decoder designs are based on the sum power constraint (SPC) at the transmitter and perfect channel state information (CSI). However, in practice, per-antenna power constraint is more realistic as the power at each transmit antenna is limited individually by the linearity of the power amplifier. Further, the estimate of CSI cannot be obtained perfectly by any methods. Under imperfect CSI, the aim is to design jointly optimum precoder and decoder subject to a power constraint that jointly meets both per-antenna and SPCs. The objective function is formulated into an optimization problem that minimizes the mean square error in estimating the transmitted signal. The simulation results show that the proposed scheme has a near-optimum performance under practical constraints.
Author	Merline, A. Thiruvengadam, S. J.
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Keywords	Per antenna power constraint Imperfect CSI MIMO Precoder MSE MIMO system Transmission channel Decoding circuit Optimization Mean square error Precoding Channel estimation Linearity Defect Wireless network Objective function Power amplifier Antenna Mathematical programming
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SubjectTerms	Antennas Applied sciences Channels Communication systems Communications Engineering Computer Communication Networks Decoders Design engineering Engineering Exact sciences and technology Networks Optimization Radiocommunications Signal,Image and Speech Processing Simulation Statistical process control Telecommunications Telecommunications and information theory
Title	Design of Optimal Linear Precoder and Decoder for MIMO Channels with Per Antenna Power Constraint and Imperfect CSI
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