Fractional base station cooperation cellular network

  • Authors:

  • Naoki Kusashima;Ian Dexter Garcia;Kei Sakaguchi;Kiyomichi Araki;Shoji Kaneko;Yoji Kishi

  • Affiliations:

  • Department of Electrical and Electronic Engineering, Tokyo Institute of Technology;Department of Electrical and Electronic Engineering, Tokyo Institute of Technology;Department of Electrical and Electronic Engineering, Tokyo Institute of Technology;Department of Electrical and Electronic Engineering, Tokyo Institute of Technology;Radio Access Network Laboratory, KDDI R & D Laboratories, Inc.;Radio Access Network Laboratory, KDDI R & D Laboratories, Inc.

  • Venue:
  • ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
  • Year:
  • 2009

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Abstract

In modern cellular systems, high-rate communication is performed using MIMO transmission by a Single Base Station (BS). This method is able to improve the transmission rate when the user is at the cell-inner. However the rate severely degrades when the user is located at cell-edge. Base Station Cooperation (BSC) MIMO is solve the cell-edge problem. BSC MIMO can improve capacity at the cell-edge than FFR or TAA cancellation, however, it has minimal impact on cellinner users and increases complexity of the network. In this paper, Fractional Base Station Cooperation Cellular Network (FBSCCN) is proposed in which a combination of Single BS MIMO and BSC Multiuser (MU) MIMO is performed in order to achieve gains both at the cell-inner and cell-edge with limited complexity. Furthermore, by cooperating with each BS autonomously and distributedly, cooperative BSs are able to select the most suitable transmission schemes to the users accordingly.