Joint Optimization of Precoder and Decoder in Multiuser MIMO Systems

  • M. Raja Department of Electronics and Communication Engineering, National Institute of Technology (NIT), Tiruchirappalli
  • Ha H. Nguyen Department of Electrical & Computer Engineering, University of Saskatchewan
  • P. Muthuchidambaranathan Department of Electronics and Communication Engineering, National Institute of Technology (NIT), Tiruchirappalli

Abstract

This paper considers the joint optimization of precoder and decoder for both uplink and downlink transmissions in multiuser multiple-input, multiple-output (MU-MIMO) systems. Focusing on the scenario when an improper constellation such as binary phase shift-keying (BPSK) or M-ary amplitude shift-keying (M-ASK) is employed, novel joint linear precoders and decoders are proposed to minimize the total mean squared error (TMSE) of the symbol estimation. The superiority of the proposed transceivers over the previously-proposed designs is thoroughly verified by simulation results.
Published
2012-09-01
Section
Regular articles