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SVD-Based Linear Precoding Using Channel Estimation for MIMO-OFDM Systems

  • R. Raja KumarEmail author
  • R. Pandian
  • C. Satheeswaran
  • M. KaviPriya
  • P. Indumathi
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 989)

Abstract

Orthogonal Frequency Division Multiplexing is an approach that can be used to combat the effect of frequency selective fading channels. Apart from spectral efficiency, reliability over fast fading channels is a primary concern in OFDM. MIMO systems offer a solution to this problem owing to the high capacity and beamforming gain. The integration of MIMO with the traditional OFDM systems allow parallel transmission of data with a significant reduction in inter-carrier interference. The tradeoff to be considered is the increase in complexity of the user equipment. This is due to the advanced modulation and estimation operations performed at the receiver. In this paper, we present a transmitter site channel estimation scenario with the help of pilot symbols. Further, a MIMO-OFDM transceiver is designed which utilizes the information of the channel state at the transmitter to perform Singular Value Decomposition (SVD) based linear precoding on the data. Such a type of precoding scheme provides reduction in bit error rate to an optimum range. The simulation results show that a singular value-based precoding technique performs better than the traditional Alamouti space–time block code. But the requirement of additional time slot for channel estimation is a challenge that accompanies this technique.

Keywords

MIMO-OFDM SVD Alamouti coding QR precoding MMSE 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • R. Raja Kumar
    • 1
    Email author
  • R. Pandian
    • 2
  • C. Satheeswaran
    • 3
  • M. KaviPriya
    • 4
  • P. Indumathi
    • 4
  1. 1.Mathematics DepartmentSathyabama Institute of Science and TechnologyChennaiIndia
  2. 2.Department of Electronics and Instrumentation EngineeringSathyabama Institute of Science and TechnologyChennaiIndia
  3. 3.Department of Electronics and Communication EngineeringDhaanish Ahmed College of EngineeringChennaiIndia
  4. 4.Department of Electronics EngineeringAnna University, MIT CampusChennaiIndia

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