9th International Conference on Communications and Networking in China

Research Article

Linear Dispersion Codes Design Based on Grassmannian Subspace Packing

  • @INPROCEEDINGS{10.4108/icst.chinacom.2014.256206,
        author={Dan Deng and Ming Zhao},
        title={Linear Dispersion Codes Design Based on Grassmannian Subspace Packing},
        proceedings={9th International Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2015},
        month={1},
        keywords={linear dispersion codes limited feedback grassmannian subspace packing mimo},
        doi={10.4108/icst.chinacom.2014.256206}
    }
    
  • Dan Deng
    Ming Zhao
    Year: 2015
    Linear Dispersion Codes Design Based on Grassmannian Subspace Packing
    CHINACOM
    IEEE
    DOI: 10.4108/icst.chinacom.2014.256206
Dan Deng1,*, Ming Zhao2
  • 1: Guangzhou Panyu Polytechnic
  • 2: University of Science and Technology of China
*Contact email: dengdan@ustc.edu

Abstract

A new method to design codebook is proposed for Linear Dispersion Code (LDC) systems with limited feedback. The extended codebook design method is introduced based on Grassmannian subspace packing and a mapping function, which is derived from the relationship between SVDs of the classical multiplexing systems and the LDC systems. Our proposed codebook can guarantee the maximum min-distance of the finite set. Simulation results show that, for 2x2 MIMO systems, if the feedback bit number is 4, the proposed codebook shows the similar performance to the optimal precoding codebook and has substantial performance advantage against the random search codebook.