Browsing by Author "Tanabe, Y."

Now showing 1 - 1 of 1
  • Item
    Comparison of Interference Reduction Schemes by Femto Base Stations to Macro Cell Users
    (Institute of Electronics, Information and Communication Engineers (IEICE), 2010) Tanabe, Y.; Afolabi, A. S.; Ohta, C.; Tamaki, H.; Tanaka, Y.; Yamamoto, T.; Okada, Y.
    In 3GPP TR25.820, three kinds of approaches, access control, bandwidth control, and power control, to reduce interference from femtocell to macrocell are examined. Further, five types of configurations as combinations of these approaches are also discussed. The relative effectiveness among these configurations are, however, not clear since they are not compared in the same scenario enough. Therefore, at the beginning in this paper, under the simple scenario where one femto-cell exists in one macro-cell, we compare Shannon capacities of the following three configurations: 1) Open Access, Co-channel, and Fixed Power, 2) CSG (Closed Subscriber Group), Dedicated Channel, and Fixed Power, 3) CSG, Co-channel, and Adaptive Transmission Power. We also investigate conditions that transmission power control is effective.