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A Modified Differential Evolution for Symbol Detection in MIMO-OFDM System

  • Aritra Sen
  • Subhrajit Roy
  • Swagatam Das
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8297)

Abstract

It is essential to estimate the Channel and detect symbol in multiple-input and multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems. Symbol detection by applying the maximum likelihood (ML) detector gives excellent performance but in systems with higher number of antennas and greater constellation size, the computational complexity of this algorithm becomes quite high. In this paper we apply a recently developed modified Differential Evolution (DE) algorithm with novel mutation, crossover as well as parameter adaptation strategies (MDE_pBX) for reducing the search space of the ML detector and the computational complexity of symbol detection in MIMO-OFDM systems. The performance of MDE_pBX have been compared with two classical symbol detectors namely ML and ZF and two famous evolutionary algorithm namely SaDE and CLPSO.

Keywords

Orthogonal Frequency Division Multiplex Channel Estimation Orthogonal Frequency Division Multiplex System Trial Vector Zero Force 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Aritra Sen
    • 1
  • Subhrajit Roy
    • 1
  • Swagatam Das
    • 2
  1. 1.School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore
  2. 2.Electronics and Communications Sciences UnitIndian Statistical InstituteKolkataIndia

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